Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 2
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

Plant growth-promoting rhizobacteria (PGPR) isolated from the rhizosphere soil of eight field crops at different locations in Egypt were identified. Rhizobacteria strains were identified as Bacillus endophyticus AW1 5, B. filamentosus EM9, ET3, Micrococcus luteus KT2, FW9, FC13, SaW4, Enterobacter cloacae SK18, Pseudomonas azotoformans TPo10, Citrobacter braakii TC3. All isolates solubilised insoluble phosphate and produced IAA, while only six were able to produce siderophores in vitro. Vegetative growth and yield of wheat cv. ‘Sakha 94’ were enhanced after the application of single inoculation of each isolate compared to the control. Grain yield was increased by 20.7– 96.5% over the control according to bacterial isolates. Available phosphorus (P) and counts of total bacteria in soil were observed to be significantly increased in treatments than in control. After the wheat harvest, soil pH was observed to be decreased, and a highly significant negative correlation was observed between soil pH and the levels of available phosphorus. Significant increases in grain and straw yields, as well as uptake of nitrogen (N) and P by plants, were observed due to inoculation with PGPR isolates. Levels of photosynthetic pigments, free amino acids, free phenolics, and reducing sugars in flag leaf and spikes were significantly enhanced by the application of all PGPR isolates compared to the control. Thus this study identifies the PGPR isolates for the improvement of the growth, yield, and quality of wheat. The study may be also useful for field evaluation under different soils and environmental conditions before generalising PGPR isolates as biofertilisers.
Go to article

Authors and Affiliations

Samy A.E.M. Abdelazeem
1
Samar M. Al-Werwary
2
Taha A.E. Mehana
2
Mohamed A. El-Hamahmy
1
ORCID: ORCID
Hazem M. Kalaji
3
ORCID: ORCID
Anshu Rastogi
4
ORCID: ORCID
Nabil I. Elsheery
5
ORCID: ORCID

  1. Suez Canal University, Faculty of Agriculture, Department of Soil and Water, Ismailia, Egypt
  2. Suez Canal University, Faculty of Agriculture, Department of Agricultural Botany, Ismailia, Egypt
  3. Institute of Technology and Life Sciences – National Research Institute, Falenty, Poland
  4. Poznan University of Life Sciences, Department of Ecology and Environmental Protection, Laboratory of Bioclimatology, Poznań, Poland
  5. Tanta University, Faculty of Agriculture, Agricultural Botany Department, Seberbay Campus, 31257, Tanta, Egypt
Download PDF Download RIS Download Bibtex

Abstract

The quality and quantity of crustacea groups the hydrochemistry of water and bottom sediments conditions, in the six selected anthropogenic hollow ponds in the central part of Silesian vojcvodship are presented taking into consideration. On strongly deformed area of the Silesian region one can find water reservoirs acljojning each other but differing the hydrochernical components. The nearness of spoil banks and slag damps affects hydrochemistry of water. In the inspected hollow ponds 20 taksons of Cladocera and 14 taksons of Copepoda were indentified. In the benthos zone these were determined 18 taksons of Cladocera and 14 taksons of Copepoda. In the pelagial zone 19 tak sons of Cladocera and I O tak sons of Copeopda. Were identified the number of taksons in the investigated hollow ponds does not depended on dissolved mineral mailer concentrations.
Go to article

Authors and Affiliations

Antoni Deryło
Maciej Kostecki
Danuta Kowalczyk
Piotr Szilman

This page uses 'cookies'. Learn more