安徽农业科学2012，Vol.40Issue(3)：1352-1354,3.
杂交棉新品种新陆早44号高产群体生理参数研究
Growth Dynamic and Physiological Parameters of Cotton Cultivar Xinluzao 44
摘要
Abstract
[Objective] The objective of this study was to explore the mechanism of high yield via analyzing related parameter of cotton cultivars, Xinluzao44, and provided scientific theoretical basis for high - yield cultivation technology. [Method] XinLuzao44 and Xinluzao33 (CK) , dry materials of each organ, LAI, biological accumulation, physiological and ecological parameters associated with yield were determined. The effects of main physiological parameters of different cotton cultivars on mechanism of high yield were studied. [Result] The results showed that for Xin-Iuzao44 and Xinluzao33, the highest leaf area index reached 4. 36 and 4.72 respectively. The green duration of leaf weight (LAI > 2) was 42 d and 28 d. Total leaf area duration (LAD) at growing season was 2.87 X 106 m2 · d and 2.79 x 106 m2 · d. Photosynthetic productivity reached maximum 20.49 、17.78 g ( m · d) at flower-beginning -peak budding stage. The time of the fastest accumulation was 84. 2N85. 8 days after e-mergence, and maximum accumulation rate reached 27.6 g/(m · d)a 26. 5 g/(m · d). Total biological accumulation and yield of Xinluzao44 were 5 932.35 kg/hm2 and 14 370 kg/hm2 ,CK were 14 332. 1 kg/hm2 5、 090.69 kg/hm2. [Conclusion] The duration of maximum LAI of Xin-Iuzao44 was longer than CK , and maximum accumulation rate of total LAD at growing season was high. The time of the fastest accumulation was early, and high accumulation rate was the basis of high yielding.关键词
新陆早44号/高产/生理参数Key words
Xinluzao 44/ High yield/ Physiological parameters分类
农业科技引用本文复制引用
李生秀,魏建军,余俞,张占琴..杂交棉新品种新陆早44号高产群体生理参数研究[J].安徽农业科学,2012,40(3):1352-1354,3.基金项目
国家科技支撑项目"杂交棉强优组合选育与产业化技术集成示范"中"杂交棉种质资源创新及强优组合选育"课题(2007BAD44B01). （2007BAD44B01）
