盐胁迫条件下不同栽培措施对棉花生长的调控作用研究  

EFFECTS OF CULTIVATION PRACTICES ON GROWTH OF COTTON UNDER SALT STRESS

作　　者：杨晓英[1] 杨劲松[1] 李冬顺[1] 

机构地区：[1]中国科学院南京土壤研究所,南京210008

出　　处：《土壤》2005年第1期65-68,共4页Soils

基　　金：国家重点基础研究发展规划项目(G 1999011803)资助。

摘　　要：研究了盐胁迫对棉花生长的影响以及不同栽培措施对盐胁迫下棉花幼苗生长和产量形成的调控作用。结果表明,在含盐量为 3.0 g/kg 的土壤上,棉花生长受到明显抑制,幼苗功能叶叶面积和生长速率明显下降,果枝数和棉铃数减少,产量和生物量降低;施用有机肥处理能改善盐胁迫下棉花幼苗生长,促进棉苗果枝和棉铃的形成,提高棉花产量和生物量。This paper studied effect of salt stress on growth of cotton and effect of cultivation practices on growth and yield of cotton under salt stress. The results showed that salt stress significantly suppressed growth of cotton seedlings. In soils with salt content being 3.0g/kg leaf area and growth rate of the plants decreased remarkably, the number of bolls and boll-bearing branches reduced, yield and biomass declined. Application of organic manure improved growth of cotton seedlings, increased the number of bolls and boll-bearing branches of an individual plant, and also raised yield and biomass of the plant.

关 键 词：盐胁迫 棉花 有机肥 

分 类 号：S31[农业科学—作物栽培与耕作技术]