新疆农业科学2012，Vol.49Issue(1)：16-21,6.DOI:65-1097/S.20120131.2024.003
水分胁迫后玉米茎节变化与产量和抗旱性的关系研究
Correlations between Internode and Yield in Maize under Drought Stress
摘要
Abstract
[ Objective ] Maize production is often restricted by drought in China. In the present study changes of internode growth and the relations between the internodes and maize yield under drought stress were investigated, which could provide the guidance to drought tolerance research. [ Method] Traits of internode length and internode dry weight under severe drought stress in the field and kernel weight per plant under medium drought stress were investigated to analyze correlations between internode the change and the yield. [Result] Decreases of length and dry weight of the first seven internodes resulted in the reduction of plant height and biomass of maize under drought. Under severe drought stress the intemode length and the internode dry weight were significantly affected, and the correlation analysis showed that the first internode length, the second internode length, the third internode length and the fourth internode length under severe drought stress had significant correlations with kernel weight per plant under medium drought stress. The results showed that the first internode dry weight and the second internode dry weight under severe drought stress existedsignificant had positive correlation with kernel weight per plant under medium drought stress. [ Conclusion ] The growth of early internodes affected the growth of later internodes. The maize internode lengths from the first to the fourth internodes and the dry weights of the first and the second internodes under severe drought stress could be the secondary traits to evaluate drought tolerance in maize.关键词
玉米/抗旱性/节间长度/节间干重Key words
maize/ drought tolerance/ internode length/ internode dry weight分类
农业科技引用本文复制引用
李亮,孙宝成,刘成,唐怀君,王天宇,黎裕,石云素,宋燕春..水分胁迫后玉米茎节变化与产量和抗旱性的关系研究[J].新疆农业科学,2012,49(1):16-21,6.基金项目
国家自然科学基金项目(30960197) （30960197）
农业部保种专项 （）
