Nitrogen,as an important element affecting crop growth and development,is one of the important limiting factors for crop yield.Nitrate Reductase(NR),as a rate-limiting enzyme for nitrogen uptake and uti-lization in higher plants,directly regulates nitrogen metabolism.Therefore,nitrate reductase activity of leav-es,as an important physiological index affecting sorghum yield,was used to evaluate nitrogen uptake and utili-zation efficiency.In this study,97 sorghum materials from different sources were selected,and the nitrate re-ductase activities of 97 sorghum materials at maturity were determined,which laid a foundation for screening sorghum materials with high nitrogen efficiency.
国家科技期刊平台
NSTL
万方数据
