Impact of Elevated CO₂ on Seed Quality of Soybean at the Fresh Edible and Mature Stages.

ABSTRACT: Although the effect of elevated CO₂ (eCO₂) on soybean yield has been well documented, few studies have addressed seed quality, particularly at the fresh edible (R6) and mature stages (R8). Under the current global scenario of increasing CO₂ levels, this potentially threatens the nutritional content and quality of food crops. Using four soybean cultivars, we assessed the effects of eCO₂ on the concentrations of crude protein, crude oil, and isoflavones and analyzed the changes in free amino acids, fatty acids, and mineral elements in seeds. At R6, eCO₂ had no influence on soybean seed protein and oil concentrations. At R8, eCO₂ significantly decreased seed protein concentration but increased seed oil concentration; it also si

SUBMITTER: Li Y 

PROVIDER: S-EPMC6199416 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature