@ARTICLE{Migut_Dagmara_Determination_2022, author={Migut, Dagmara and Tobiasz-Salach, Renata E. and Stadnik, Barbara and Kuźniar, Piotr}, number={Special Issue}, pages={156-163}, journal={Journal of Water and Land Development}, howpublished={online}, year={2022}, publisher={Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute}, abstract={Appropriate agrotechnical measures make it possible to optimise plant cultivation and obtain yields of the highest quality with an appropriate economic production index. The aim of the study was to evaluate different sowing density and row spacing on the morphological and mechanical properties of white lupine ( Lupinus albus L.) seeds. The field experiment was conducted at the Experimental Station for Variety Evaluation in Przecław (50°11'25.2" N, 21°28'55.0" E). The experiment was established at two row spacings (15 cm and 30 cm) and three sowing densities (60, 75, 90 plants per m 2). Mechanical parameters evaluated included destructive force FD (N), relative deformation DR (%) and destructive energy ED (mJ). Seed morphological properties such as weight, length and width were also assessed. Sphericity was also calculated. In the present study, improvements in the mechanical properties of the seeds were obtained by increasing the plant density per unit area of the experiment. In the case of morphological characteristics, only the weight of the analysed lupine seeds changed significantly as a result of row spacing. On the other hand, sowing density did not significantly affect morphological traits. of white lupine seeds. Apart from the spacing and sowing density of plants, the weather conditions in particular years of research were an important factor determining the properties of seeds. Determining the optimum sowing density and row spacing in the field contributes to the optimisation of the production process. Quasi-static mechanical tests are often used to obtain reasonable data on the physical properties of plant materials.}, type={Article}, title={Determination of sowing density and row spacing on the susceptibility of lupine seeds to mechanical damage}, URL={http://journals.pan.pl/Content/125899/PDF-MASTER/2022-05-JWLD-17.pdf}, doi={10.24425/jwld.2022.143731}, keywords={lupine seeds, mechanical damage, physical characteristics, row spacing, sowing density}, }