高粱种质资源成熟期氮效率评价及筛选
Evaluation and Screening of Nitrogen Efficiency of Sorghum Germplasm Resources at Maturity Stage
李丹 1曲匡正 1陆晓春 1丛玲 1朱振兴1
作者信息
- 1. 辽宁省农业科学院作物分子改良实验室,辽宁 沈阳 110161
- 折叠
摘要
氮素作为影响作物生长发育的重要元素,是限制作物高产的重要限制因素之一.硝酸还原酶(Nitrate Reductase,简称 NR)作为高等植物氮素吸收利用的限速酶,直接调节氮代谢.因此,叶片硝酸还原酶活性作为影响高粱产量的重要生理指标被用于评价氮素吸收、利用效率.本研究选取了97 份不同来源的高粱材料,通过对 97 份高粱材料进行成熟期倒二叶和倒三叶的硝酸还原酶活性测定,为筛选高粱氮高效材料奠定基础.
Abstract
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.
关键词
高粱/氮/硝酸还原酶/筛选Key words
Sorghum/Nitrogen/Nitrate reductase/Screen引用本文复制引用
基金项目
中国博士后科学基金面上项目(2021M693848)
现代农业产业技术体系建设项目(CARS-06-14.5-A3)
辽宁省优秀青年自然科学基金(2021-YQ-04)
辽宁省农科院学科绩效后补助项目(2023-HBZ-1008)
出版年
2024
国家科技期刊平台
NSTL
万方数据