安徽农业科学2025，Vol.53Issue(17)：30-34,5.DOI:10.3969/j.issn.0517-6611.2025.17.008
小麦叶片早衰突变体T68的早衰特性研究
Study on the Early Senescence Characteristics of Wheat Leaf Mutant T68
摘要
Abstract
[Objective]To study the early senescence characteristics of wheat leaf mutant T68.[Method]The wheat line Zhongke 852 and its early senescence mutant T68 induced by γ-ray were used as materials,the photosynthesis indices were detected,as well as the agronomic and yield traits were analyzed,in order to illustrate the physiological and biochemical mechanisms of early senescence T68.[Result]The results showed that Zhongke 852 and early senescence mutant T68 could complete the growth and maturation processes normally.However,the mu-tant T86 grew abnormally in the early stage,with the growth continues,the symptoms of early senescence gradually intensify,which caused wither of the whole plant until died,and led to the plant height and thousand grain weight,as well as yield reduction ultimately.During the occurrence of early senescence reactions,the POD and SOD enzyme activity of T68 were significantly higher than those of Zhongke 852 in top third leaf while were significantly lower in flag and top second leaf.[Conclusion]The conclusions above could lay theoretical foundations for physiological and biochemical mechanisms of mutant T68 for early senescence.关键词
小麦/叶片早衰/突变体/农艺性状/早衰特性/生理生化Key words
Wheat/Leaf early senescence/Mutant/Agronomic traits/Early senescence characteristics/Physiology and biochemistry分类
农业科技引用本文复制引用
邵金,章忠贵,刘唐玉,崔保田,李明浩..小麦叶片早衰突变体T68的早衰特性研究[J].安徽农业科学,2025,53(17):30-34,5.基金项目
国家重点研发专项(2018YFD0300901). （2018YFD0300901）
