Effect of Drought Stress during Soybean R2-R6 Growth Stages on Sucrose Metabolism in Leaf and Seed.

ABSTRACT: Sucrose is the main photosynthesis product of plants and the fundamental carbon skeleton monomer and energy supply for seed formation and development. Drought stress induces decreased photosynthetic carbon assimilation capacity, and seriously affects seed weight in soybean. However, little is known about the relationship between decreases in soybean seed yield and disruption of sucrose metabolism and transport balance in leaves and seeds during the reproductive stages of crop growth. Three soybean cultivars with similar growth periods, "Shennong17", "Shennong8", and "Shennong12", were subjected to drought stress during reproductive growth for 45 days. Drought stress significantly reduced leaf photosynthetic rate, shoot biomass, and seed weight by 63.93, 33.53, and 41.65%, respectively. Dro

SUBMITTER: Du Y 

PROVIDER: S-EPMC7013680 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature