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棉花柱头外露种质类型及其杂种一代的光温特性研究 V.棉花柱头外露光敏感种质延迟现蕾的临界日长研究
Studies on the Type of Cotton Germlasm with Stigma Showing and the Characteristics of Response of its Hybrid F1 to Daylength and Temperature Ⅴ.Studies on the Critical Daylength Causing the Delay in Budding of Four Cotton Germplasms Sensitive to
【摘要】 通过对 4个棉花柱头外露光敏感种质不同光照长度处理的试验结果表明 ,在江西南昌夏季昼夜高温条件下 ,延迟棉苗现蕾的临界日长 ys112∶0 0h、ys3 和 ys812∶2 0h、ys412∶4 0h。而造成光敏感种质不现蕾的临界日长较延迟现蕾的临界日长更长 ,ys1、ys4和 ys8,13∶4 0h ,ys3 15∶4 0h。
【Abstract】 Four cotton germplasms sensitive to daylight (ys 1, ys 3, ys 4 and ys 8) under summer high temperature in Nanchang were treated with different daylight. The result showed that the critical day lengths that delay its budding are 12 hours, 1212hours, 1223 hours and 1213hours respectively; While the critical day lengths leading to no budding are longer than those delaying budding, which are 1323 hours for ys 1, ys 4 and ys 8, and 1523hours for ys 3.
【基金】 国家自然科学基金资助项目 (3996 0 0 4 2 )
- 【文献出处】 江西农业大学学报(自然科学) ,Acta Agriculturae Universitis Jiangxiensis , 编辑部邮箱 ,2002年06期
- 【分类号】S562.01
- 【被引频次】4
- 【下载频次】53