COMPARATIVE ANALYSIS OF SEED QUALITY BETWEEN IRRIGATED AND NON- IRRIGATED TREATMENTS OF THE GLYCINE MAX (L.) MERR. CULTIVAR COLLECTION SAMPLES IN CLIMATE OF SOUTHEASTERN KAZAKHSTAN
2020
Yerzhebayeva, R.S. | Didorenko, S.V. | Abugalieva, A.I. | Ageyenko, A.V.
Soybean (Glycine max (L.) Merr) is a protein and oil-bearing crop of global importance. Due to the unique chemical composition of its seeds, containing 30-52% of essential proteins, 17-27% of fats, about 20% of carbohydrates, it has a wide array of uses. Drought-induced stress is the main environmental factor limiting the yield and seed quality of soybean worldwide. Current research has studied the seed quality of 66 soybean collection cultivars grown in southeastern Kazakhstan on two contrasting backgrounds: with irrigation and without irrigation. It was established that in climatic conditions of southeastern Kazakhstan the non-irrigated collection samples produced seeds with higher protein content (42.4%) compared to the irrigated plants (40.1%), with level of significance of 0,0000006; it was also shown that in plants without irrigation the seeds contained less oil (19.2%) compared to the irrigated samples (19.9%), with level of significance of 0.05. Four samples with high protein (no less than 45%), five samples with high oil (no less than 21.5%) and eleven samples with concurrently high protein (no less than 40.5%) and oil (no less than 21%) content were selected as sources for breeding for seed quality.
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