Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 44
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

In 1993–1997, 990 pupae of diamondback moth (Plutella xylostella L.) were collected from nine different varieties of Brasica oleracea L., grown on experimental farm near Kraków. Only 234 moths (23.6%) were recovered from the cocoons. The most important factor reducing the population of DBM was parasitization (65.1%). It varied between the years of observation and oscillated from 60% to 90.3%. Sixhundred and fourty four specimens of parasitic wasps belonging to 11 species from families: Ichneumonidae (5 species), Braconidae (3 species), Pteromalidae (2 species) and Eulophidae (1 species) were reared out. In each year of observations the most abundant species among DBM parasitoids was Diadegma fenestralis Holmgr. as it constituted 71.4% of all of the wasps reared. In the years 1994 and 1996 with low abundance of diamondback moth, D. fenestralis was the only species parasitizing 66.7% and 89.5% of the pest larvae.

Go to article

Authors and Affiliations

Beata Jankowska
Kazimierz Wiech
Download PDF Download RIS Download Bibtex

Abstract

In1993–1997 the occurrence of predatory syrphids inthe cabbage aphid (Brevicoryne brassicae L.) colonies was observed on the nine different cabbage vegetables: savoy cabbage cv. Vertus, white cabbage cv. Amager, red cabbage cv. Langendijker, brussels sprout cv. Maczuga, cauliflower cv. Pionier, blue kohlrabi cv. Masłowa, white kohlrabi cv. Delikates, kale cv. Zielony Kędzierzawy and broccoli cv. Piast. The number of aphids as well as amount of aphidophagous Syrphidae feeding in their colonies on the different cabbage vegetables were compared. The species compositionwas also estimated. Eight species of Syrphidae were collected: Episyrphus balteatus (Deg.), Sphaerophoria scripta (L.), S. rueppelli (Wied.) S. menthastri (L.), Metasyrphus corollae (Fabr.), Scaeva pyrastri (L.), Syrphus vitripennis (Meig.), Paragus quadrifasciatus (Meig.). In the all years of observation the dominant species were E. balteatus (Deg.), S. scripta (L.) and S. rueppelli (Wied.). The highest number of syrphid larvae were collected from cabbage aphid colonies on the white and savoy cabbage.

Go to article

Authors and Affiliations

Beata Jankowska
Download PDF Download RIS Download Bibtex

Abstract

In 1993–1997 the occurrence of cabbage aphid (Brevicoryne brassicae L.) and predators from Cecidomyiidae, Coccinellidae and Chrysopidae was observed on the nine different late cabbage vegetables; Savoy cabbage cv. ‘Vertus’, white cabbage cv. ‘Amager’, red cabbage cv. ‘Langendijker’, brussel sprouts cv. ‘Maczuga’, cauliflower cv. ‘Pionier’, blue kohlrabi cv. ‘Masłowa’, white kohlrabi cv. ‘Delikates’, kale cv. ‘Zielony Kędzierzawy’ and broccoli cv. ‘Piast’. Among the examined predators only the cecidomyiid – Aphidoletes aphidimyza Rond. (Cecidomyiidae) played an important role in reducing the number of cabbage aphids. The cruciferous species had no impact on the density of A. aphidimyza population, and females laying eggs. The size of aphid colonies on cabbage leaves played the most important role.

Go to article

Authors and Affiliations

Beata Jankowska
Download PDF Download RIS Download Bibtex

Abstract

Cucumber mosaic virus (CMV; family Bromoviridae, genus Cucumovirus) is the most cosmopolitan plant virus occurring worldwide. In the present study, leaf samples showing deformations, mosaics, and chlorotic spots symptoms were collected from naturally infected Basella alba, Telfairia occidentalis and Talinum fruticosum in a home yard garden in Ibadan, Nigeria. Total nucleic acid was extracted from leaves and used as template for cDNA synthesis. RT-PCR was carried out using CMV-specific primers targeting RNA-1 segment. Samples were also tested by RT-PCR using Potyvirus and Begomovirus genusspecific primers. DNA fragments with the expected sizes of ~500 bp were amplified by using CMV-specific primers; however, the expected amplicons were not produced using specific primers used for the detection of potyviruses and begomoviruses. The nucleotide and deduced amino acid sequences obtained for the isolates studied contained 503–511 nt and 144 aa, respectively. The isolates shared 81.9–85.3% nucleotide and 74.3–77.8% amino acid sequence identities with each other. The results of BLASTN analyses showed the highest identities of the isolates (80–93%) with CMV strains from Japan, USA and South Korea. Alignment of deduced partial protein revealed multiple amino acid substitutions within the three isolates and high identities with CMV subgroup I. Phylogenetic analyses putatively categorized the isolates in close association with subgroup IB isolates. The three isolates clustered together into a separate subclade, indicating possible new CMV strains. The results provide the first molecular evidence for CMV infections of T. fruticosum and B. alba in Nigeria and seem to show the possible presence of new strain(s). These findings also add three new hosts to the list of natural host range of the virus in Nigeria.

Go to article

Authors and Affiliations

Adedapo Olutola Adediji
Download PDF Download RIS Download Bibtex

Abstract

Silesia Park in Chorzów was established on land of poor quality and partially degraded. 60 years since that event, the research have been carried out to identify both the degree of structural preservation of the Park Stand’s structure in relation to the original design goals and also the direction of any changes – due to the effects of years of land remediation and the flora’s natural succession. It was found that vegetation of Silesia Park remains, in general, consistent with its original master plan, however, after 60 years significant changes have occurred, affecting the Park’s function, its general form and landscape values.

Go to article

Authors and Affiliations

Beata Fortuna-Antoszkiewicz
Jan Łukaszkiewicz
Piotr Wiśniewski
Download PDF Download RIS Download Bibtex

Abstract

It has already been well established that long exposure to low doses of pesticidesis linked to consumer risks. So, this study purposed to investigate the amounts of pesticide residues and potential health risks associated with them. The risk assessment was determined by two methods: 1. Pesticide toxicity index (PTI) depending on the maximum residue limit (MRL) to calculate the hazard quotient (HQ); 2. Health risk assessment (HR) using acceptable daily intake (ADI) and estimated daily intake (EDI) to calculate the health index (HI). Pesticide residues were estimated in 176samples of the most popularly consumed vegetables collected from major retailers and markets in Dakahlia, Egypt (during 2018). There were 111 samples contaminated with pesticide residues (63.1%), of which 29 samples (16.48%) were higher than the maximum residue limits (MRL).Residues of 23 compounds were found in the analyzed samples, of which chlorpyrifos was the most frequentin 33 samples (18.75%);while cypermethrin was the lowest (detected in one sample). According to WHO toxicity classification, 12 of the detected pesticides were moderately hazardous (class II), seven pesticides belonged to class III (slightly hazardous), three compounds were found in class U (unlikely to pose an acute hazard with normal use), while carbofuran is a highly toxic compound (class Ib). Also, the obtained data revealed that, the HI’s for the individual pesticides ranged from 0.0018 to 64.0% of ADI indicates no risk of adverse effects following exposure to the individual pesticides. The cumulative exposure amounts (PTI values) ranged from 1.58 in snake cucumber to 128.44 in potato tubers, indicating that, the combined risk index of pesticide residues was a significant health risk for consumers according to the individual risk index.It can be concluded that there is a need for strict regulation and regular monitoring of pesticide residues in foodstuff for consumers’ health protection.
Go to article

Bibliography


Akoto O., Azuure A.A., Adotey K.D. 2016. Pesticide residues in water, sediment and fish from Tono Reservoir and their health risk implications. SpringerPlus 5: 1849. DOI: https://doi.org/10.1186/s40064-016-3544-z
Bajwa U., Sandhu K.S. 2014. Effect of handling and processing on pesticide residues in food – A review. Journal of Food Science and Technology 51: 201–220. DOI: https://doi.org/10.1007/s13197-011-0499-5
Belden J.B., Gilliom R.J., Martin J.D., Lydy M.J. 2007. Relative toxicity and occurrence patterns of pesticide mixtures in streams draining agricultural watersheds dominated by corn and soybean production. Integrated Environmental Assessment and Management 2007 (3): 90–100.
Chaikasem S., Roi-et Na. V. 2020. Health risk assessment of pesticide residues in vegetables from river basin area. Applied Environmental Research 42 (2): 46–61. DOI: https://doi.org/10.35762/AER.2020.42.2.4
Claeys W.L., Jean-Francois S., Bragard C., Maghuin-Rogister G., Luc P., Schiffers B. 2011. Exposure of several Belgianconsumer groups to pesticide residues through fresh fruitand vegetable consumption. Food Control 22 (3–4): 508–516. DOI: https://doi.org/10.1016/j.foodcont.2010.09.037
CAC. 1993.Codex Alimentarius Commission. Joint FAO/WHO Food Standards Program, Volume 2, 391 pp.
Dragus A., Beldean-Galea M.S., Mihaiescu R., Mihaiescu T., Ristoiu R. 2012. Assessing impacts of triazine pesticides usein agriculture over the well water quality. Environmental Engineering and Management Journal 11: 319–323.
EU. 2016. The 2016 European Union report on pesticide residues in food. Scientific report. EFSA Journal 2018. DOI: https://doi.org/10.2903/j.efsa.2018.5348
EU. 2020. European Commission (EU): EU Pesticide Database (Online) Available from: https://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/public/? Event =pesticide residue. Current MRL& language = EN&pestResidueId =56 [Accessed 15 Agust 2020].
Fantke P., Gillespie B.W., Juraske R., Jolliet O. 2014. Estimating half-lives for pesticide dissipation from plants. Environmental Science and Technology 48: 8588–8602. DOI: https://doi.org/10.1021/es500434p
Fantke P., Juraske R. 2013. Variability of pesticide dissipation half-lives in plants. Environmental Science and Technology 47: 3548–3562. DOI: https://doi.org/10.1021/es303525x
Gad Alla S.A., Thabet W.M., Salama E.Y. 2013. Monitoring and risk assessment of pesticide residues in some egyptian vegetables. Middle East Journal of Applied Sciences 3 (4): 216–230.
Goumenou M., Tsatsakis A. 2019. Proposing new approaches for the risk characterization of single chemicals and chemical mixture: The source related Hazard Quotient (HQs) and Hazard Index (HIs) and the adversity specific Hazard Index (HIA). Toxicology Reports 6: 632–636. DOI: https://doi.org/10.1016/j.toxrep.2019.06.010
Hossain M.S., Fakhruddin A.N.M., Alamgir Zaman Chowdhury M., Rahman, M.A., Khorshed Alam M. 2015. Health risk assessment of selected pesticide residues in locally produced vegetables of Bangladesh. International Food Research Journal 22 (1): 110–115.
Ibrahim N.M., Eweis E.A., El-Sawi S.AM., Nassar K.R.A. 2018. Monitoring and risk assessment of pesticide residues in some vegetables in Egypt. Middle East Journal of Applied Sciences 8 (2): 669–679.
ILNAS-EN 15662:2018. Foods and plant origin – Multimethod for the determination of pesticide residues using GC- and LC- based analysis following acetonitrile extraction/partitioning and clean-up by dispersive SPE–Modular QuEChERS method. European Committee for Standardization, Brussels.
Kalliora C., Mamoulakis C., Vasilopoulos E., Stamatiades G.A., Kalafati L., Barouni R., Karakousi T., Abdollahi M., Tsatsakis A. 2018. Association of pesticide exposure with human congenital abnormalities. Toxicology and Applied Pharmacology 346: 58–75. DOI: https://doi.org/10.1016/j.taap.2018.03.025
Khan N., Yaqub G., Hafeez T., Tariq M. 2020. Assessment of health risk due to pesticide residues in fruits, vegetables, soil and water. Journal of Chemistry 2020: 1–7. DOI: https://doi.org/10.1155/2020/5497952
Lehotay S.J., Koka Hiemstra M., Bodegraven P. 2005. Validation of a fast and easy method for the determination of residues from 229 pesticides in fruits and vegetables using gas and liquid chromatography and mass spectrometric detection. Journal of AOAC International 88: 595–614.
Mac Loughlin T.M., Leticia Peluso M., Agustina Etchegoyen M., Alonso L.L., Cecilia de Castro M., Cecilia Percudani M., Marino D.J.G. 2018. Pesticide residues in fruits and vegetables of the argentine domestic market: Occurrence and quality. Food Control 2018 (93): 129–138. DOI: https://doi.org/10.1016/j.foodcont.2018.05.041
Malhat F., Kasiotis K.M., Shalaby Sh.E.M. 2018. Magnitude of cyantraniliprole residues in tomato following open field application: A prelude to risk assessment. Environmental Monitoring and Assessment 190: 116. DOI: https://doi.org/10.1007/s10661-018-6496-7
Munn M.D., Gilliom R.J., Moran P.W., Nowell L.H. 2006. Pesticide Toxicity Index for Freshwater Aquatic Organisms. 2nd ed., Scientific Investigations Report 2006-5148. Reston, VA. 2006. [Available on: https://pubs.usgs.gov/sir/ 2006/5148/sir_2006-5148].
Pathak M.K., Fareed M., Srivastava A.K., Pangtey B.S., Bihari V., Kuddus M., Kesavachandran C. 2013. Seasonal variations in cholinesterase activity, nerve conduction velocity and lung function among sprayers exposed to misture of pesticides. Environmental Science and Pollution Research 20: 7296–7300. DOI: https://doi.org/10.1007/s11356-013-1743-5
Ramadan M.F.A., Abdel-Hamid M.M.A., Altorgoman M.M.F., AlGaramah H.A., Alawi M.A., Shati A.A., Shweeta H.A., Awwad N.S. 2020. Evaluation of pesticide residues in vegetables from Asir Region, Saudi Arabia. Molecules 2020 (25): 205.
Seo Y., Cho T., Hong C., Kim M., Cho S., Park W., Hwang I., Kim M. 2013. Monitoring and risk assessment of pesticide residues in commercially dried vegetables. Preventiv Nutrition and Food Science 18 (2): 145–149. DOI: https://doi.org/10.3746/pnf.2013.18.2.145
Shalaby Sh. E.M., Abdou G.Y. 2020. Assessment of pesticide residues in blood samples of agricultural workers in Egypt. Journal pf Plant Protection Research 60 (4): 369–376. DOI: https://doi.org/10.24425/jppr.2020.134912
Shalaby Sh.E.M., Abdou G.Y. 2010. The influence of soil microorganisms and bio- or organic rertilizers on dissipation of some pesticides in soil and potato tubers. Journal of Plant Protection Research 50 (1): 86–92. DOI: https://doi.org/10.2478/v10045-010-0015-3
Shalaby Sh. EM., El-Saadany S., Abo-Eyta A., Abdel-Satar A., Al-Afify A., Abd El-Gleel W. 2018. Levels of pesticide residues in water, soil sediment and fish samples collected from Nile River in Cairo, Egypt. Environmental Forensics 19 (4): 228–238. DOI: https://doi.org/10.1080/15275922.2018.1519735
Silipunyo T., Hongsibsong S., Phalaraksh C., Laoyang S., Kerdnoi T., Patarasiriwong V., Prepamontol T. 2017. Determination of organophosphorus pesticide residues in fruits, vegetables and health risk assessment among consumers in Chiang Mai Province, Northern Thailand. Research Journal of Environmental Toxicology 11: 20–27. DOI: https://doi.org/10.3923/rjet.2017.20.27
Tsatsakis A., Kouretas D., Tzatzarakis M., Stivaktakis P., Tsarouhas K., Golokhvast K., Rakitskii V., Tutelyan V., Hernandez A., Rezaee R. 2017. Simulating real-life exposures to uncover possible risks to human health: a proposed consensus for a novel methodological approach. Human and Experimental Toxicology 36: 554–564. DOI: https://doi.org/10.1177/0960327116681652
USEPA 1998. United States Environmental Protection Agency, Guidelines for Ecological Risk Assessment. EPA/630/R-95/002FApril 1998. Washington DC.
Walpole S.C., Prieto-Merino D., Edwards P., Cleland J., Stevens G., Roberts I. 2012. The weight of nations: an estimation of adult human biomass. BMC Public Health 12: 439. DOI: http://dx.doi.org/10.1186/1471-2458-12-439
WHO. 2003. World Health Organization. Diet, nutrition and prevention of chronic diseases. Report of a Joint FAO/WHO Expert Consultation, Geneva (WHO Technical Report Series No. 916).
WHO. 2009. GEMS/food regional diets. Regional per capita consumption of raw and semi-processed agricultural commodities. [Available on: Internet: http://www.who.int/foodsafety/publications/chem/regional_diets/en/] [Accessed: 12 November 2019].
WHO. 2019. World Health Organization. The WHO Recommended Classification of Pesticides by Hazard and Guideline to Classification 2019, p 6.
WHO/GEMS/FOODS. 2006. GEMS/food regional diets (regional per capita consumption of raw and semi-processed agricultural commodities). [Available on: http://www.who.int/foodsafety/publications/chem/regional_diets/en/].
Wiles R., Davies K., Campbell C. 1998. Over exposed organophosphate insecticides in children's food. Environmental Working Group, Washington. [Available on: https://www.ewg.org/research/overexposed-organophosphate-insecticides-childrens-food].
Wołejko E., Łozowicka B., Kaczyński P. 2014. Pesticide residues in berries and juices and potential risk for consumers. Desalination Water Treatment 52: 3804–3818. DOI: https://doi.org/10.1080/19443994.2014.883793
Go to article

Authors and Affiliations

Shehata E.M. Shalaby
1
ORCID: ORCID
Gehan Y. Abdou
1
Ibrahim M. El-Metwally
2
Gomaa M.A. Abou-elella
1

  1. Pests and Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt
  2. Botany Department, National Research Centre, Dokki, Cairo, Egypt
Download PDF Download RIS Download Bibtex

Abstract

In 2001, a total of 2125 samples of plant origin were analysed for residues of the most commonly used pesticides in Poland. Detectable residues were found in 18% of the samples, while in about 0.9% of the samples the residues exceeded national or/and EU harmonised Maximum Residue Limits (MRLs). The long-term (chronic) dietary intake, based on monitoring data, was calculated for 7 pesticides in 9 commodities. The intake of 1 of the pesticide analysed (endosulfan/black currant combination) exceeded 1 % of Acceptable Daily Intake (ADI) indicating a sufficient margin of safety for the adult consumer. The short-term (acute) intake was estimated for 19 pesticides in 12 commodities according to the European Commission recommendations. The ADI level was exceeded for toddlers in 7 cases, carbendazim in mushroom, linuron in carrot, chlorothalonil in greenhouse tomato, tolylfluanid and EBDC in strawberry and flusilazole and diazinon in apple. In all cases, however, the safety factor of 2 for a toddler still existed.
Go to article

Authors and Affiliations

Stanisław Sadło
Download PDF Download RIS Download Bibtex

Abstract

Changes taking place in weathered bedrock and vegetation of the ground moraine of Werenskiold glacier during about 50 years are presented. These results are based on phytosociological survey and analysis of the population structure of Saxifraga oppositifolia in 20 experimental fields and the analysis of physical and chemical features of the soils. In the process of succession, with chemical features not much changed and spongy structure just beginning, the number of vascular plants did not increase. In the process of succession the gradual increase in the density of S. oppositifolia population was observed. The size of its individuals and the share of flowering individuals also increased.

Go to article

Authors and Affiliations

Ewa Pirożnikow
Andrzej Górniak
Download PDF Download RIS Download Bibtex

Abstract

The aim of the paper is to analyze instances of vegetalization, which is the X IS A PLANT metaphor, in John Henry Newman’s collection of sermons, published as Sermons on Subjects of the Day (1843). One group of metaphors are ontological metaphors, whose source domain is an entity (Lakoff, Johnson 2003[1980]). They can be classified as reifications, vegetalizations, animalizations, personifications, and deifications, which corresponds to the hierarchy of the so-called Great Chain of Being. As claimed by Krzeszowski (1997), these metaphors play an important role in expressing the axiological dimension of language, since they can express specific values of their target domains. In Christian discourse, vegetalizations contribute to the conceptualization of such notions from the religious sphere as God, grace, the Kingdom of God, the Christian life, the Church, or evil.

Go to article

Authors and Affiliations

Marcin Kuczok
Download PDF Download RIS Download Bibtex

Abstract

Dolichos ( Lablab purpureus L.) is a drought tolerant legume used as food/feed and improvement of soil fertility. The production of dolichos in Kenya, Nakuru County is however limited by insect pests like bean aphids, pod borers and whiteflies. Field studies were conducted to determine the effect of cropping systems (dolichos monocrop and maize-dolichos intercrop) and field margin vegetation on bean aphids and their natural enemies. The experiment was conducted in Njoro (high field margin vegetation) and Rongai (low field margin vegetation) during May- December 2019 and MarchNovember 2020 cropping seasons. Bean aphid percent incidence, severity of damage and abundance was assessed at seedling, early vegetative, late vegetative and flowering dolichos growth stages. The populations of natural enemies in the plots and field margin vegetation were monitored using pan traps and sweep nets. Species diversity and composition of the field margin vegetation was determined using a quadrat. Results showed that location and cropping system had significant effects on bean aphid infestations. A high bean aphid incidence (38.13%) was observed in Njoro compared to Rongai (31.10%). Dolichos monocrop had significantly higher bean aphid infestation (51.63%) than the maize-dolichos intercrop system (24.62%). A highly diverse Shannon-weaver index was observed in Rongai (1.90) compared to Njoro (1.67). Dolichos monocrop had a more diverse Shannon-weaver index (1.8) than the maize-dolichos intercrop system (1.7). Rongai had the most abundant annual and perennial field margin vegetation species. The field margin species richness and diversity were higher in Rongai (81%) than in Njoro (54%). The findings of this study have demonstrated that a maize-dolichos intercrop in Rongai can reduce bean aphid damage in dolichos.
Go to article

Bibliography


Abate T., van Huis A., Ampofo J.K.O. 2000. Pest management strategies in traditional agriculture: an African perspective. Annual Review of Entomology 45 (1): 631-659. DOI: https://doi.org/10.1146/annurev.ento.45.1.631
Amaral D.S., Venzon M., Duarte M.V., Sousa F.F, Pallini A., Harwood J.D. 2013. Non-crop vegetation associated with chili pepper agroecosystems promote the abundance and survival of aphid predators. Biological Control 64 (3): 338-346. DOI: https://doi.org/10.1016/j.biocontrol.2012.12.006
Arnett R.H., Jacques R.L. 1981. Simon and Schuster's guide to insects. Simon and Schuster.
Asbjornsen H., Hernandez-Santana V., Liebman M., Bayala J., Chen J., Helmers M., Ong C.K., Schulte L.A. 2014. Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services. Renewable Agriculture and Food Systems 29 (2): 101-125. DOI: https://doi.org/10.1017/S1742170512000385
Bajwa A.A., Mahajan G., Chauhan B.S. 2015. Nonconventional weed management strategies for modern agriculture. Weed Science 63 (4): 723-747. DOI: https://doi.org/10.1614/WS-D-15-00064.1
Balzan M.V., Moonen A.C. 2014. Field margin vegetation enhances biological control and crop damage suppression from multiple pests in organic tomato fields. Entomologia Experimentalis et Applicata 150 (1): 45-65. DOI: https://doi.org/10.1111/eea.12142
Cheruiyot E.K., Mumera L.M., Nakhone L.N., Mwonga S.M. 2003. Effect of legume-managed fallow on weeds and soil nitrogen in following maize ( Zea mays L.) and wheat ( Triticum aestivum L.) crops in the Rift Valley highlands of Kenya. Australian Journal of Experimental Agriculture 43 (6): 597-604. DOI: https://doi.org/10.1071/EA02033
Cullis C., Kunert K.J. 2017. Unlocking the potential of orphan legumes. Journal of Experimental Botany 68 (8): 1895-1903. DOI: https://doi.org/10.1093/jxb/erw437
Damalas C.A., Eleftherohorinos I.G. 2011. Pesticide exposure, safety issues, and risk assessment indicators. International Journal of Environmental Research and Public Health 8 (5): 1402-1419. DOI: https://doi.org/10.3390/ijerph8051402
De Bello F., Lepš J., Sebastià, M.T. 2006. Variations in species and functional plant diversity along climatic and grazing gradients. Ecography 29 (6): 801-810. DOI: https://doi.org/10.1111/j.2006.0906-7590.04683.x
Dixon A.F.G. 2012. Aphid ecology an optimization approach. Springer Science & Business Media.
Dixon A.F.G., Agarwala B.K. 1999. Ladybird-induced life-history changes in aphids. Proceedings of the Royal Society of London. Series B: Biological Sciences 266 (1428): 1549-1553.
Dostálek T., Rokaya M.B., Münzbergová Z. 2018. Altitude, habitat type and herbivore damage interact in their effects on plant population dynamics. PloS One 13 (12): e0209149. DOI: https://doi.org/10.1371/journal.pone.0209149
Elsharkawy M.M., El-Sawy, M.M. 2015. Control of bean common mosaic virus by plant extracts in bean plants. International Journal of Pest Management 61 (1): 54-59. DOI: https://doi.org/10.1080/09670874.2014.990947
Farkas Á., Molnár R., Morschhauser T., Hahn I. 2012. Variation in nectar volume and sugar concentration of Allium ursinum L. ssp. ucrainicum in three habitats. The Scientific World Journal 2012: 138579. DOI: https://doi.org/10.1100/2012/138579
Farooq M., Jabran K., Cheema Z.A., Wahid A., Siddique K.H. 2011. The role of allelopathy in agricultural pest management. Pest Management Science 67 (5): 493-506. DOI: https://doi.org/10.1002/ps.2091
Forrest J.R. 2016. Complex responses of insect phenology to climate change. Current Opinion in Insect Science 17: 49-54. DOI: https://doi.org/10.1016/j.cois.2016.07.002
Glaze-Corcoran S., Hashemi M., Sadeghpour A., Jahanzad E., Afshar R.K., Liu X., Herbert S.J. 2020. Understanding intercropping to improve agricultural resiliency and environmental sustainability. Advances in Agronomy 162: 199-256. DOI: https://doi.org/10.1016/bs.agron.2020.02.004
González E., Salvo A., Valladares G. 2020. Insects moving through forest-crop edges: a comparison among sampling methods. Journal of Insect Conservation 24 (2): 249-258. DOI: https://doi.org/10.1007/s10841-019-00201-6
Grez A.A., Gonzalez R.H. 1995. Resource concentration hypothesis: effect of host plant patch size on density of herbivorous insects. Oecologia 103 (4): 471-474.
Guerrieri E., Digilio M.C. 2008. Aphid-plant interactions: a review. Journal of Plant Interactions 3 (4): 223-232.
He H.M., Liu L.N., Munir S., Bashir N.H., Yi W.A.N.G., Jing Y.A.N.G., Li C.Y. 2019. Crop diversity and pest management in sustainable agriculture. Journal of Integrative Agriculture 18 (9): 1945-1952. DOI: https://doi.org/10.1016/S2095-3119(19)62689-4
Hrček J., McLean A.H., Godfray H.C.J. 2016. Symbionts modify interactions between insects and natural enemies in the field. Journal of Animal Ecology 85 (6): 1605-1612. DOI: https://doi.org/10.1111/1365-2656.12586
Jaetzold R., Hornetz B., Shisanya C.A., Schmidt H. 2012. Farm management handbook of Kenya Vol I-IV (Western Central Eastern Nyanza Southern Rift Valley Northern Rift Valley Coast). Nairobi: Government Printers.
Khan Z.R., Pickett J.A. 2004. The ‘push-pull’strategy for stemborer management: a case study in exploiting biodiversity and chemical ecology. Ecological engineering for pest management: Advances in Habitat Manipulation for Arthropods. p. 155-164. In: “Ecological Engineering for Pest Management: Advances in Habitat Manipulation for Arthropods” (S.D. Wratten, M.A. Altieri, G.M. Gurr, eds.). CABI International, Wallingford, Oxon (CABI)
Leksono A.S., Batoro J., Zairina A. 2018. Abundance and composition of arthropods in a paddy field collected by pan traps. In: AIP Conference Proceedings. AIP Publishing LLC, 2019, No. 1, p. 04002
Li J., Wang Z., Tan K., Qu Y., Nieh J.C. 2014. Giant Asian honeybees use olfactory eavesdropping to detect and avoid ant predators. Animal Behaviour 97: 69-76. DOI: https://doi.org/10.1016/j.anbehav.2014.08.015
Lopes T., Hatt, S. Xu, Q., Chen J., Liu Y. Francis F. 2016. Wheat (Triticum aestivum L.)‐based intercropping systems for biological pest control. Pest Management Science 72 (12): 2193-2202. DOI: https://doi.org/10.1002/ps.4332
Mahajan M., Fatima S. 2017. Frequency, abundance, and density of plant species by list count quadrat method. International Journal of Multidisciplinary Research 3 (7): 1-8.
Mbata G.N., Shu S., Phillips T.W. Ramaswamy S.B. 2004. Semiochemical cues used by Pteromalus cerealellae (Hymenoptera: Pteromalidae) to locate its host, Callosobruchus maculatus (Coleoptera: Bruchidae). Annals of the Entomological Society of America 97 (2): 353-360. DOI: https://doi.org/10.1093/aesa/97.2.353
Mkenda P., Mwanauta R., Stevenson P.C., Ndakidemi P., Mtei K. Belmain S.R. 2015. Extracts from field margin weeds provide economically viable and environmentally benign pest control compared to synthetic pesticides. PLoS One 10 (11): e0143530. DOI: https://doi.org/10.1371/journal.pone.0143530
Nahashon C.K., Benson M.M., Stephen M.M. 2016. Effects of irrigated and rain-fed conditions on infestation levels of thrips (Thysanoptera: Thripidae) infesting Dolichos lablab (L.) in Eastern Kenya. African Journal of Agricultural Research 11 (18): 1656-1660. DOI: https://doi.org/10.5897/AJAR2015.10721
Njarui D.M.G. Mureithi J.G. 2010. Evaluation of lablab and velvet bean fallows in a maize production system for improved livestock feed supply in semiarid tropical Kenya. Animal Production Science 5 (3): 193-202. DOI: https://doi.org/10.1071/AN09137
Novgorodova T.A., Gavrilyuk A.V. 2012. The degree of protection different ants (Hymenoptera: Formicidae) provide aphids (Hemiptera: Aphididae) against aphidophages. European Journal of Entomology 109 (2): 187-196.
Perdikis D., Fantinou A., Lykouressis D. 2011. Enhancing pest control in annual crops by conservation of predatory Heteroptera. Biological Control 59 (1): 13-21. DOI: https://doi.org/10.1016/j.biocontrol.2011.03.014
Pielou E.C. 1966. The measurement of diversity in different types of biological collections. Journal of Theoretical Biology 13: 131-144.
Quicke D.L. 2015. The Braconid and Ichneumonid Parasitoid Wasps: Biology, Systematics, Evolution and Ecology. John Wiley & Sons, 740 pp. DOI: https://doi.org/10.1002/9781118907085
Rekha C., Mallapur C.P. 2009. Studies on pests of dolichos beans in northern Karnataka. Agricultural Science 2: 407-409.
Root R.B. 1973. Organization of a plant-arthropod association in simple and diverse habitats: the fauna of collards (Brassica oleracea). Ecological Monograph 43 (1): 95-124. DOI: https://doi.org/10.2307/1942161
SAS Institute inc. 2002. SAS for Windows v. 8. Cary, NC, U.S.A.
Saunders M.E., Luck G.W. 2013. Pan trap catches of pollinator insects vary with habitat. Australian Journal of Entomology 52 (2): 106-113. DOI: https://doi.org/10.1111/aen.12008
Soetan K.O., Fafunso M.A. 2010. Studies on the proximate and mineral composition of three varieties of lablab beans (Lablab purpureus). International Journal of Applied Agricultural Research 5 (3): 291-300.
Songa J.M., Jiang N., Schulthess F., Omwega C. 2007. The role of intercropping different cereal species in controlling lepidopteran stem borers on maize in Kenya. Journal of Applied Entomology 131 (1): 40-49. DOI: https://doi.org/10.1111/j.1439-0418.2006.01116.x
Spafford R.D., Lortie C.J. 2013. Sweeping beauty: is grassland arthropod community composition effectively estimated by sweep netting? Ecology and Evolution 3 (10): 3347-3358. DOI: https://doi.org/10.1002/ece3.688
Sujayanand G.K., Sharma R.K., Shankarganesh K., Saha S. Tomar R.S. 2015. Crop diversification for sustainable insect pest management in eggplant (Solanales: Solanaceae). Florida Entomologist 98 (1): 305-314. DOI: https://doi.org/10.1653/024.098.0149
Thejaswi L., Mohan I., Naik M., Majunatha M. 2007. Studies of population dynamics of pests’ complex of field beans (Lablab purpureus L.) and natural enemies of pod borers. Karnataka Agriculture Science 3: 399-402.
Tiroesele B., Obopile M., Karabo O. 2019. Insect diversity and population dynamics of natural enemies under sorghum-legume intercrops. Transactions of the Royal Society of South Africa 74 (3): 258-267. DOI: https://doi.org/10.1080/0035919X.2019.1658654
Vellichirammal N.N., Gupta P., Hall T.A., Brisson J.A. 2017. Ecdysone signaling underlies the pea aphid transgenerational wing polyphenism. Proceedings of the National Academy of Sciences 114 (6): 1419-1423. DOI: https://doi.org/10.1073/pnas.1617640114
Wäckers F.L., Romeis J., van Rijn P. 2007. Nectar and pollen feeding by insect herbivores and implications for multitrophic interactions. Annuals Review Entomology 52: 301-323. DOI: https://doi.org/10.1146/annurev.ento.52.110405.091352
Webster B., Cardé R.T. 2017. Use of habitat odour by host‐seeking insects. Biological Reviews 92 (2): 1241-1249. DOI: https://doi.org/10.1111/brv.12281
Go to article

Authors and Affiliations

Christine N. Mwani
1
ORCID: ORCID
Jane Nyaanga
1
Erick K. Cheruiyot
1
Joshua O. Ogendo
1
Philip K. Bett
2
Richard Mulwa
1
Philip C. Stevenson
3
Sarah E.J. Arnold
3 4
Steven R. Belmain
3

  1. Crops, Horticulture and Soils, Egerton University, Kenya
  2. Biological Sciences, Egerton University, Kenya
  3. Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, UK
  4. Nelson Mandela African Institute of Science and Technology, Arusha, Tanzania
Download PDF Download RIS Download Bibtex

Abstract

Erosion and sedimentation have a very big influence on flooding. Floods are strongly influenced by land use and population activities that change the river’s physical condition, including erosion and sedimentation. The river upstream was very steep, and the downstream was narrowing and meandering with high rainfall recorded. This study analyses erosion, sedimentation, and its handling using the eco-hydraulic base. The method involves input rainfall data, river hydraulics, land use, watershed area, and land cover. The analysis of hydrology, hydraulics, land use, flood discharge, and eco-hydraulic, inundation height, vegetation diameter, velocity reduced, and riverbank width measured in five bridges cross-sections along the river. The eco-hydraulic compares the width of existing riverbanks and design, high inundation, and the vegetation diameter to minimise flood discharge. Erosion in the right cliff is 22.73% and the left cliff is 37.04%, land erosion was 225.83 Mg∙ha –1∙year –1. The river’s bottom is formed by rocks of 0.18–1.30 mm. The plantation land used around the Lae Kombih River grows mainly an oil palm with a diameter of 0.5–0.7 m. The riverbank design on 100 m for vegetation diameter of 0.1–1.0 m can retain flood discharge for five years return period up to 72.3%, resulting in discharge of 112.04209.43 m 3∙s –1. The largest erosion and sedimentation on the river border is Dusun Silak, so it is recommended to plant Vetiveria zizanioides, Ipomoea carnea and Bambusoideae. An inundation height of 0.9 m can be recommended to design an embankment to be used as flood mitigation.
Go to article

Authors and Affiliations

Ziana Ziana
1 2
ORCID: ORCID
Azmeri Azmeri
1 2
ORCID: ORCID
Alfiansyah Yulianur
1 2
ORCID: ORCID
Ella Meilianda
1 2
ORCID: ORCID

  1. Universitas Syiah Kuala, Doctoral Program, School of Engineering, Banda Aceh, 23111, Indonesia
  2. Universitas Syiah Kuala, Department of Civil Engineering, Banda Aceh, 23111, Indonesia
Download PDF Download RIS Download Bibtex

Abstract

Mineral fertilisers are one of the most important nutrients that plants need in large quantities, which help to greatly increase crop yields, and yeast is considered a bio-stimulator of plants. However incorrect implementation of both can make them more susceptible to pest infestations. The mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae), is an economically important polyphagous pest that destroys okra plants in Egypt. This work focused on the evaluation of mealybug infestations and okra plant productivity responses to mineral fertilisers (nitrogen and phosphorus), yeast (without and with) and their interactions. This study was executed in a private okra field (‘Balady’ cultivar) in Luxor Governorate, Egypt, during 2021 and 2022 seasons. A split plot design was applied, where two levels (with and without yeast) were used in the main plots, where seven levels of nitrogen and phosphorus were applied in the split plots. The results indicated that the addition of 286 kg N∙ha –1, 143 kg P∙ha –1 and yeast to okra plants led to a maximum increase in the population densities of pest, and this caused a decrease in the vegetative stage of okra that would affect the final yield as compared to the other treatments throughout the two seasons. However, the application of 190 kg N∙ha –1, 107 kg P∙ha –1, and yeast to okra plants gave the highest values for vegetative growth characteristics and resulting yield during the two studied seasons. This work aids farmers in improving okra production by comprehending good farming practices and avoiding the spread of mealybugs.
Go to article

Authors and Affiliations

Moustafa M.S. Bakry
1
ORCID: ORCID
Yani Maharani
2
ORCID: ORCID
R.O.H. Allam
3
ORCID: ORCID

  1. Agricultural Research Center, Plant Protection Research Institute, Department of Scale Insects and Mealybugs Research, 7, Nady El-Sayied Street, 12619, Dokki – Giza, Egypt
  2. Universitas Padjadjaran, Faculty of Agriculture, Department of Plant Pests and Diseases, Jln. Ir. Soekarno km. 21, Jatinangor, 45363, Sumedang, West Java, Indonesia
  3. South Valley University, Faculty of Agriculture, Plant Protection Department, Masaken Othman Rd, 83523, Qena, Egypt
Download PDF Download RIS Download Bibtex

Abstract

The use of local bacteria is preferred in bioleaching as an environmental-friendly alternative technology in gold mining. In a preliminary study, rhizobacteria were isolated and cultured from three types of hyperaccumulator vegetation from the Ratatotok gold mine, Indonesia, namely Pteris vittata L., Syzygium aromaticum L., and Swietenia mahagoni Jacq. These rhizobacteria still need to be characterised and identified. This study is aimed to cover bacterial phenotypic characterisation, assessment of bacteria resistance to tailing, and identification of bacterial strains the exhibit the highest resistance to tailings. The assessment was carried out across a spectrum of tailing concentrations, selecting the three most robust strains for molecular identification. The process involved genotypic characterisation to determine the species name by analysing the 16S rRNA gene. The results reveal that the phenotypic characteristics of the bacteria isolates vary, but all of them are the indole acetic acid (IAA) hormone producers. The highest IAA producer is the isolate from the rhizosphere of S. aromaticum. Based on the genotypic characterisation test, three most resistant isolates to tailing stress are the following strains Pseudomonas aeruginosa (RTKP1) and Stenotrophomonas geniculata (RTKP2), both from the rhizosphere of P. vittata; as well as Bacillus cereus (RTKS) from the rhizosphere of S. aromaticum. These three strains need to be further tested for their bioleaching capability to recover gold from tailings. Additionally, this study recommends that gold recovery using biological agents can combine the role of hyperaccumulator plants in phytomining and rhizobacteria in bioleaching.
Go to article

Authors and Affiliations

Tien Aminatun
1
ORCID: ORCID
Anna Rakhmawati
1
ORCID: ORCID
Sri Atun
1
ORCID: ORCID
Arifudin Idrus
2
ORCID: ORCID
Doly Risdo Simbolon
3
ORCID: ORCID
Laode Restele
4
ORCID: ORCID

  1. Universitas Negeri Yogyakarta, Faculty of Mathematics and Natural Sciences, Jl. Colombo No. 1 Karangmalang (55281), Yogyakarta, Indonesia
  2. Universitas Gadjah Mada, Faculty of Engineering, Department of Geological Engineering, Jl. Grafika 2 Bulaksumur (55281), Yogyakarta, Indonesia
  3. PT Sumber Energi Jaya, Jl. Elang Laut, Ruko Boulevard No. 32-33 (14470), Jakarta, Indonesia
  4. Halu Oleo University, Faculty of Mathematics and Natural Sciences, Jl. HEA Mokodompit, Kampus Hijau Bumi Tridharma Anduonohu (93561), Kendari, Indonesia
Download PDF Download RIS Download Bibtex

Abstract

The vegetation of the Chernihiv city sands (natural and technogenic origin) has rather high syntaxonomic diversity (17 associations and 5 initial communities) and the ruderal phytocoenoses prevail. Natural phytocenoses are represented to a small extent (Cyperetum flavescentis Koch 1926, Dichostylidi–Helochloetum alopecuroidis (Timar 1950) Pietsch 1973, Artemisia scoparia–Dianthus borbasii community, Kochietum arenariae Fijalk 1978). Synanthropic psammophytes species communities that are more resistant to anthropogenic influence, are formed under urban conditions. The ecological range of vegetation of sandy alluvia varies from xerophytic phytocoenoses in mineral-poor sand (Kochietum arenariae) to the communities, which indicate waterlogged areas with increased mineralization of water and saline bottom sediments (Typhetum laxmannii Nedulcu 1968). Itispossibletoobserve the adventization and apophization of sand vegetation, one of the indicators of which is the rupture of coenotic connections between the species of the community. These phenomena indicate that the process of synanthropization of the vegetation cover of the city keeps intensifying, and first of all, occurs in places of newly formed technogenic ecotopes.

Go to article

Authors and Affiliations

Oleksandr Lukash
Hanna Danko
Download PDF Download RIS Download Bibtex

Abstract

Soil-plant conditions in selected valleys typical for Bellsund Region are varying from hardly favourable (Skilvika), to favourable (Calypsostranda) and medium (Lyellstranda). Plant growth and development of a soil cover are favoured by grain size composition (loamy sands and light loams), quick warming-up of a soil, relative stability of a ground, location and shape of valleys, etc. Unfavourable soil-plant conditions result from too light or too heavy grain size composition, considerable dynamics of ground mechanical features and high compactness of a soil. Varying contents of carbonates and alkaline reaction (except for almost neutral reaction in organic horizons) were typical for the studied soils. Thickness of humus horizons as well as contents of organic C vary at the three studied sites. Significant is high concentration of easily available Ca and Mg, sometimes also of Na.

Go to article

Authors and Affiliations

Zbigniew Klimowicz
Stanisław Uziak
Download PDF Download RIS Download Bibtex

Abstract

In this study, heavy metals pollutions in waters, soils and vegetables were investigated from farms, near oil refinery in south of Tehran city, Iran (Shahre Ray). The most important heavy metals in Iranian oil are vanadium, cobalt, nickel, arsenic and mercury (V, Co, Ni, As, Hg). In this region, the concentration of heavy metals in soils, well waters and leafy edible vegetables were evaluated in ten different points of farms. Geographic information systems (GIS) were used to estimate the levels of heavy metals concentration at unmeasured locations. After sample preparation, concentrations of heavy metals in vegetables, soils and waters were determined by atomic absorption spectrometry (AAS). Five different leafy edible vegetables from farms, i.e., Persian leek, dill, parsley, spinach and radish were sampled in spring, summer and autumn 2012. In vegetables and well water samples, the concentrations of V, Ni and Co were above the permissible limit of heavy metals as compared to WHO guidelines and the concentrations of these metals in agricultural soils were found to be lower in accordance to soil references. The industrial waste waters had high concentration of heavy metals in this area. In consequence, the results of this study indicate that industrial waste water can cause pollution in well waters and edible vegetables. So, this region is not suitable for cultivation and growing vegetables.

Go to article

Authors and Affiliations

Hamid Shirkhanloo
Seyed Alireza Hajiseyed Mirzahosseini
Nasrin Shirkhanloo
Seyyed Ali Moussavi-Najarkola
Hadi Farahani
Download PDF Download RIS Download Bibtex

Abstract

In 1993–1997 the occurrence of Lepidoptera pests: Pieris rapae L., Pieris brassicae L., Mamestra brassicae L., and Plusia gamma L. were observed on the nine different late cabbage vegetables; Savoy cabbage cv. Vertus, white cabbage cv. Amager, red cabbage cv. Langendijker, brussel sprouts cv. Maczuga, cauliflower cv. Pionier, blue kohlrabi cv. Masłowa, white kohlrabi cv. Delikates, kale cv. Zielony Kędzierzawy and broccoli cv. Piast. The field observations showed that butterflies differentiated among host-species for oviposition. The butterfly females of all species preferred for oviposition the brussel sprouts and deposited a substantially larger number of eggs on leav es of them. Plant species with green leaves were more preferred than the red leaf ones.

Go to article

Authors and Affiliations

Beata Jankowska
Download PDF Download RIS Download Bibtex

Abstract

Vegetables in addition to arable crops and ornamentals are also at high risk from slug and snail attack at all growth stages. The no-choice tests were conducted under laboratory conditions to assess the harmfulness of the slug Arion rufus (Linnaeus) and the snail Cepaea hortensis (Müller) to young vegetable plants. Ten species representing leaf and root vegetables, allium, brassica, cucurbit and edible pulse plants were chosen to compare their susceptibilities to feeding of these pests (agrotechnical classification – Polish National List of Varieties of Agricultural and Vegetable Plants 2005). The evaluation of the growth of the tested vegetables included a percentage of the damaged plant area and changes in aboveground plant mass. The trend toward increase of mass was defined by the means of regression analysis. Losses of aboveground plant mass resulting from pest feeding and plant growth restraint caused by the slug or the snail damage were assessed. Variance analysis of the general linear model and orthogonal contrasts were calculated to compare the vegetable groups included in the research. The highest losses of aboveground plant mass, by both pest species A. rufus and C. hortensis, were on common bean plants and the smallest on plants of leaf vegetables (lettuce, dill), brassica plants (cauliflower, white cabbage) and allium plants (garden onion).

Go to article

Authors and Affiliations

Jan Kozłowski
Monika Zielińska
Agnieszka Pawłowska
Maria Kozłowska
Download PDF Download RIS Download Bibtex

Abstract

By 2050, global crop demand is projected to rise by 60–110%. Crop yields have also been impacted by climate change in some nations, and these impacts are likely to continue. To prevent the influence of climate change on crop output, it is critical to adjust planting times in weather-related open fields to meet food security concerns. Present study was carried out at Experimental Farm of Faculty of Agriculture, Al-Azhar University, Assiut, Egypt, during two successive seasons, 2019 and 2020. It was aimed to study the effect of different sowing times (1st and 15th October, 1st and 15th November), and plant spacings (25, 20, and 15 cm) on growth, fruit yield, and oil production of caraway ( Carum carvi L.) plants. The results showed that sowing caraway plants on 15th October with plant spacing of 25 cm gave the highest dry weight (72.6 g∙plant –1), fresh weight (266.15 g∙plant –1), seed yield (37.43 g∙plant –1), and oil yield (0.659 cm3∙plant –1). The maximum umbels (50.83 number per plant) and essential oil (1.78%) were also recorded in the plants receiving same treatment. On the other hand, plants sown at 15th November with spacing of 15 cm exhibited the minimum values of recorded traits. While the highest value of plant height gave with sowing caraway plants on 15th October with plant spacing of 15 cm (135.35 cm). In conclusion, the plants sowed on October 15th with a maximum plant spacing of 25 cm had the highest values of the evaluated morphological, biochemical, and yield attributes of caraway.
Go to article

Authors and Affiliations

Mostafa Fathi Ibrahim
1
ORCID: ORCID
Muhammad Moaaz Ali
2
ORCID: ORCID
Sobhi F. Lamlom
3
ORCID: ORCID
Hazem M. Kalaji
4 5
ORCID: ORCID
Ahmed F. Yousef
1
ORCID: ORCID

  1. University of Al-Azhar (branch Assiut), College of Agriculture, Department of Horticulture, Assiut 71524, Egypt
  2. Fujian Agricultural and Forestry University, College of Horticulture, Fuzhou, China
  3. Alexandria University, Faculty of Agriculture Saba Basha, Plant Production Department, Alexandria, Egypt
  4. Warsaw University of Life Sciences (SGGW), Institute of Biology, Department of Plant Physiology, Warsaw, Poland
  5. Institute of Technology and Life Sciences – National Research Institute, Falenty, Poland
Download PDF Download RIS Download Bibtex

Abstract

The aim of the paper is to provide climatic data from the basic elements and characteristics of the energy balance in terms of the current state and in terms of trends and assumptions of their future changes in Slovakia. Climate change affect agriculture and its procedures. Changes in vegetation period in Slovakia of selected vegetables are presented in this study. We used for agro-climatic analysis one hundred climatological stations, which were selected to cover all agricultural re-gions up to 800 m a.s.l. Actual data and predictions were compared with time period 1961–2010. Due to homogeneity in data measurements, was chosen this period. We obtained climate trends and assumed map outputs of future climate chang-es by mathematical-statistical methods for horizons of years 2011–2020, 2041–2050, 2071–2080 and 2091–2100. We ana-lysed vegetation period changes of selected fruit vegetables, Brassica vegetables and root vegetable in field conditions with prediction to year 2100. In our results is shown the earlier beginning of vegetation period in a spring and later end in an autumn in last 30 years. The vegetation period is getting longer about 15–20 days for Capsicum annuum; 15–20 days for Brassica oleracea var. capitate; 10–15 days for Beta vulgaris subsp. vulgaris with comparation of nowadays situation and period 2091–2100.

Go to article

Authors and Affiliations

Ján Čimo
Karol Šinka
Andrej Tárník
Elena Aydin
Vladimír Kišš
Lucia Toková
Download PDF Download RIS Download Bibtex

Abstract

Waste produced by deep coal mining is heaped up in the landscape, and remains there as foreign matter. Several attempts have been made to plant trees and shrubs on the soil substrate of post-industrial wastelands. But despite high financial expense reclamation often failed, because ecological principles were ignored. In European countries the optimum vegetation is represented by a forest (which is the final stage of natural succession) restoration was mainly done through forestation. Natural plant communities represent a finally balanced system and it would be reasonable to take this into account, especially when reclamation is concerned. Botanists, phytosociologists and ecologists are aware that natural development of a plant cover, particularly on row soils starts with pioneer species. They are characterized by their low demand with respect to site conditions, especially water and nutrient supply. The biotops, which are the natural source of these species, have largely disappeared, and the so-called technosoils do not own a seedbank.
Go to article

Authors and Affiliations

Gabriela Woźniak
Andrzej Pasierbiński
Adam Rostański
Download PDF Download RIS Download Bibtex

Abstract

On the basis of the obtained expeditionary data, the authors performed a comprehensive analysis of the ecosystems’ modern transformation in the studied area. In the course of the analysis, the authors found that at the present stage there have been quantitative changes (depletion of natural resources) in used landscapes, along with them, there are changes in qualitative characteristics (accumulation of resources). Now, against the background of vegetation and soil degradation, ways of their restoration are observed. New combinations of degraded and self-recovering ecosystems have emerged. Based on the analysis of the current state of different ecological systems and their relationships, the authors determined the possibilities of the dynamics of their combinations functioning by stages. This will make it possible to give a more reliable forecast of the ongoing processes in the ecosystems of the Republic of Kazakhstan.
Go to article

Authors and Affiliations

Tilepbergen Ryspekov
1
ORCID: ORCID
Marzhan Balkozha
2
ORCID: ORCID

  1. Kazakh National Agrarian Research University, Faculty of Agrobiology, Almaty, Kazakhstan
  2. Kazakh National Agrarian Research University, Faculty of Water, Land and Forest Resources, 8 Abai Ave, 050010, Almaty, Kazakhstan
Download PDF Download RIS Download Bibtex

Abstract

The present study was to reflect the use of some bacteria in the treatment and removal of pollutants in three selected wastewater sites, including a vegetable oil plant (viz. Al-Etihad Food Industries), the main wastewater treatment station in the city of Hila, and Al-Hila River water from October 2019 to January 2020. The bacterial isolates identified in these three sites were Klebsiella pneumoniae, Escherichia coli, Enterobacteria cloacae, Pseudomonas aeruginosa, Thalasobacillus devorans, Acinetobacter baumannii, and Bacillus subtilis. The molecular study of the bacterial isolates involved the detection of bacterial genera using the polymerase chain reaction (PCR). The results showed that water had a variable nature, depending on the substances in it. It recorded varying chemical and physical property values, ranging between 6.36 and 7.82 for pH and from 2500 to 7100 mg∙dm–3 for total alkalinity. Additional values were 713–2051 μS∙cm–1 for electrical conductivity (EC), 5.90–9.80 mg∙dm–3 for chemical oxygen demand (COD), and 480–960 mg∙dm–3 for total hardness. The given values were also 0.20–0.65 μg∙dm–3, 0.03-0.23 μg∙dm–3, and 0–107 mg∙dm–3 for nitrite (NO2), phosphate (PO4) oils, respectively.
Go to article

Authors and Affiliations

Hanan Kareem Salim
1
ORCID: ORCID
Suad Ghali Kadhim Al-Ahmed
1

  1. Babylon University, College of Sciences, Department of Biology, PO Box: 4 Iraq - Babylon - Hilla, Iraq

Authors and Affiliations

Mariusz Rząsa
1
ORCID: ORCID

  1. Opole University of Technology, Faculty of Electrical Engineering Automatic Control and Informatics, ul. Prószkowska 76, 45-758 Opole, Poland

This page uses 'cookies'. Learn more