激光生物学报2011，Vol.20Issue(5)：624-630,680,8.DOI:10.3969/j.issn.1007-7146.2011.05.011
绿色、棕色和白色棉品种光合作用与产量性状的研究
Comparative Studies on the Photosynthesis and Yield Characteristics among Green, Brown and White Fiber Cotton Varieties
摘要
Abstract
Using brown-fiber cotton (Wanmian 38), green-fiber cotton (Wanmian 39), and the'parental material called white-cotton (Wanmian 25) as experimental materials to analyze the differences of the photosynthesis character and yield in the three lines. The results indicated,compared with the white cotton, colored cottons had a relatively lower increasing rate and less amount of dry matter in the former and middle growth period, also chlorophyll' content were lower. In addition, leaf area indices of colored cotton went up mainly in the early growth stage, but they fell down fast after the full bloom stage. Just as photosynthetic rate, the green-fiber cotton and brown-fiber cotton were slightly higher than that of the white-cotton during the former full bloom stage, but obviously lower than the white-cotton during the later full bloom stage. In this study, there were two obvious peaks in diurnal variation of photosynthetic rate at 10:00am and 16:00pm among the three varieties. In comparison of white-cotton, the "nap phenomenon" of colored cottons were not obvious and their photosynthetic rate dropped within a small range, besides, the recovery time was short and the toler-ance to drought was stronger. Moreover, yields of the white-cotton were significantly higher than those of brown-fiber cotton and green-fiber in this paper.关键词
彩色棉/叶绿素/光合特性/产量Key words
colored cotton/chlorophyll/photosynthesis characteristics/yield分类
农业科技引用本文复制引用
张海鹏,周桃华,周琴,王荣富..绿色、棕色和白色棉品种光合作用与产量性状的研究[J].激光生物学报,2011,20(5):624-630,680,8.基金项目
安徽省高校优秀青年人才基金项目(2010SQRL064) （2010SQRL064）
安徽省教育厅自然科学研究重点项目(KJ2008A129) （KJ2008A129）
