江汉大学学报（自然科学版）2025，Vol.53Issue(5)：5-15,11.DOI:10.16389/j.cnki.cn42-1737/n.2025.05.001
氮素水平对不同氮利用效率甘蓝型油菜表型性状与生理生化效应的影响
Effects of Nitrogen Levels on Phenotypic Traits and Physiological-biochemical Responses in Brassica napus with Different Nitrogen Use Efficiencies
摘要
Abstract
Based on the nitrogen concentration environmental gradient for Brassica napus(B.napus)growth established through our research group's exploration,we investigated the differences in phenotypic and physiological-biochemical indices between the high nitrogen use efficiency(NUE)B.napus material 10-Chong 32 and the low-NUE material WH-17 under three nitrogen concentrations:low nitrogen(0.3 mmol/L),normal nitrogen(6.0 mmol/L),and high nitrogen(15.0 mmol/L).The results showed that under all growth conditions,the dry weight and fresh weight values of 10-Chong 32 were consistently higher than those of WH-17.The root activity-related parameters of 10-Chong 32 demonstrated superior performance compared to WH-17.Additionally,10-Chong 32 exhibited better photosynthesis-related metrics than WH-17,with significant differences observed in nitrogen metabolism-related enzyme activity levels between the two materials.The analysis reveals that B.napus materials with different nitrogen utilization efficiencies display distinct phenotypic and physiological-biochemical characteristics under varying nitrogen concentrations,thereby laying a theoretical foundation for subsequent exploration of the physiological-biochemical and molecular mechanisms underlying NUE in B.napus,as well as for breeding high-NUE B.napus varieties.关键词
甘蓝型油菜/氮利用效率/表型性状/生理生化指标Key words
Brassica napus/nitrogen use efficiency(NUE)/phenotypic traits/physiological-biochemical indices分类
农业科技引用本文复制引用
程苗,陈美珠,董笑笑,陈敬东,夏忙,刘小云,万何平,曾长立..氮素水平对不同氮利用效率甘蓝型油菜表型性状与生理生化效应的影响[J].江汉大学学报（自然科学版）,2025,53(5):5-15,11.基金项目
国家重点研发计划(2016YFD0100202) （2016YFD0100202）
湖北省重点研发计划项目(2022BBA0064) （2022BBA0064）
江汉大学一流学科建设重大专项计划项目(2023XKZ026) （2023XKZ026）
