Morphophysiology, Productivity and Quality of Soybean (Glycine max (L.) Merr.) cv. Merlin in Response to Row Spacing and Seeding Systems

The appropriate row spacing and sowing density of soybeans are the basic non-input pro-environmental agrotechnical factors. optimal plants in field can be crucial terms reducing competition between for water, nutrients light, which is particularly important photosynthesis maximizes use environmental resources. experiment was carried out years 2017–2019 at Experimental Station Cultivar Assessment Przec?aw, Poland, on Merlin cv. soybean plants. experimental factors were: 15 30 cm 70, 90 110 pcs. m?2. During research, influence yielding, seed quality, plant morphological features, nodulation physiological processes assessed. obtained yield not influenced by factors, but only weather conditions prevailing research years. smaller 15/70 30/70 resulted an increase parameters structure, number dry weight root nodules, as well chlorophyll fluorescence (Fv/Fm, Fv/F0 PI). Greater per area unit low structure parameters, lower poorer higher protein content seeds. With increased density, were higher, 1st. pod placed LAI value also higher.