Formation of photosynthetic and grain productivity of soybean varieties depending on the seeding terms under the conditions of sufficient moistening
Abstract
The results of experiments on the influence of seeding terms on the formation of photosynthetic and grain productivity of soybean varieties are presented. It is established that maximum indices of photosynthetic productivity (area of leaf surface, photosynthetic potential, net productivity of photosynthesis, mass of dry matter) were formed when sown on May 5—10, besides the maximum grain yield of Ustiya, Kolbi, Medison and Annuchka soybean varieties was at the rate of 2.35—2.93 t/ha with high quality indicators – 34.0—41.2 % (protein) and 19.0—22.0 % (oil).
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