灌水量和密度对转基因抗虫棉生育特性的影响  

Effect of irrigation and plant density on the development of transgenic insect-resistant cotton

作　　者：王俊峰[1] 贾涛[1] 刘生荣[1] 

机构地区：[1]西北农林科技大学农学院棉花所,陕西杨凌712100

出　　处：《干旱地区农业研究》2007年第5期64-68,共5页Agricultural Research in the Arid Areas

基　　金：陕西省重点农业技术推广项目"转基因抗虫棉简化高效栽培技术推广"

摘　　要：在关中棉区大田条件下，采取不同种植密度下控制供水的方法，研究了灌水和密度对转基因抗虫棉生长发育、干物质分配及产量的影响。结果表明，灌水和密度对棉花生长具有双向调控功效，二者优化高效组合是灌水675m^3／hm^2，密度4．5～7．5万株／hm^2，比CK增产21．6％～23．6％，灌水效率达2．49～3．19kg／m^3。The effect of irrigation plant density on the development, dry matter distribution and yield of transgenic insect-resistant cotton was studied with the method of controlling irrigation and different plant density under farm condition in the middle cotton belt of Shaanxi Province. The results showed that irrigation and density had two-way regulated effect on the development of cotton. The optimum composition of both measures was irrigation in 675 m^3/hm^2 and density in 4.5 -- 7.5 × 10^4 plant/hm^2. In this case, the yield was increased by 21.6 %--23.6 % over that of CK, and the irrigation efficiency got 2.49--3.19 kg/m^3.

关 键 词：转基因抗虫棉 灌水 密度 生育特性 

分 类 号：S562.071[农业科学—作物学] S562.042