Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762, USA.
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762, USA.
Food Chem. 2019 Apr 25;278:92-100. doi: 10.1016/j.foodchem.2018.11.035. Epub 2018 Nov 7.
Soybean seed quality is often determined by its constituents which are important to sustain overall nutritional aspects. The objective of this study was to investigate the effects of soil moisture stress during reproductive stage on seed quality and composition. Plants were subjected to five levels of soil moisture stresses at flowering, and yield and quality traits were examined at maturity. Seed protein, palmitic and linoleic acids, sucrose, raffinose, stachyose, N, P, K, and Ca significantly decreased whereas oil, stearic, oleic and linolenic acids, Fe, Mg, Zn, Cu, and B increased in response to soil moisture deficiency. The relationship between seed protein and oil was negatively correlated. The changes in seed constituents could be due to changes in nutrient accumulation and partitioning in soybean seeds under water stress. This information suggests the requirement of adequate soil moisture during flowering and seed formation stages to obtain the higher nutritional value of soybean seeds.
大豆种子质量通常由其组成决定，这些组成对维持整体营养方面很重要。本研究旨在探讨生殖期土壤水分胁迫对种子质量和组成的影响。在开花期对植物进行了 5 个水平的土壤水分胁迫处理，并在成熟时检查了产量和品质特性。种子蛋白质、棕榈酸和亚油酸、蔗糖、棉子糖、水苏糖、氮、磷、钾和钙显著降低，而油、硬脂酸、油酸和亚麻酸、铁、镁、锌、铜和硼则随着土壤水分的缺乏而增加。种子蛋白质与油的关系呈负相关。在水分胁迫下，大豆种子中营养物质的积累和分配的变化可能导致种子成分的变化。这些信息表明，在开花和种子形成阶段需要充足的土壤水分，以获得更高营养价值的大豆种子。
