Evaluation of the effect of maternal Soybean (Glycine max) nutrition on seed quality traits under accelerated aging test
Structural and physiological delicacy of soybean seeds is known as an important quality indicator in the cultivation of this plant, but at the same time, the most chronic problems of soybean seed quality are the reduction of seed quality during storage and before sowing. The effect of some nutrients on the quality of soybean seeds under accelerated aging stress was investigated
Experiments were conducted for two consecutive years (2019-2020) in the research field of Lorestan University, Faculty of Agriculture in a randomized complete block design. Nutritional treatments included nitrogen and phosphorus application (as soil application) and iron and molybdenum as foliar application. Seeds were harvested at the maturity stage and 1000-grain weight and seed coat resistance to mechanical damage was investigated. Following the exposure of seeds to accelerated aging, leakage from seeds and germination were measured.
The results showed that nutrition had a significant effect on all studied traits. However, the effect of year was only significant on 1000-seed weight and resistance to mechanical damage of seed coat. The highest number of traits related to seed quality was related to complete fertilizer treatment (N-P-Fe-Mo) and accelerated aging had a less negative effect on them.
Among the nutrients, nitrogen and phosphorus had the most effect on germination indices, and iron and molybdenum were in the next ranks. Seeds with strong vigor and treated with fertilizer were less affected by accelerated aging and had better germination. The lower the seed vigor, the more sensitive they were to this stress.
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