摘要
通过研究提出在新疆南部全国最高产棉区冀棉２０公顷产皮棉３１９０．７ｋｇ棉花的各项生理指标：叶面积指数在现蕾时为０．５１，开花时为１．６３，在盛铃期时达最大，为４．２４，吐絮时为３．８９；干物质积累在盛花前平均日增干物重６７．５ｋｇ·ｈｍ－２，盛铃期达最大，为３２２．５ｋｇ·ｈｍ－２；盛铃期日净光合时间为１３ｈ，Ｐｎ最大峰值为４０．９ｍｇＣＯ２·ｄｍ－２·ｈ－１，ＣＡＰ最大峰值为４．２ｇＣＯ２·ｄｍ－２·ｈ－１；单位叶面积载铃量及单位叶面积负载皮棉重分别为２７．８个·ｍ－２叶和０．１７５４ｋｇ·ｍ－２叶。
The phsiological criterions of the cotton variety Jimian No.20 with lint yield 3000kg·hm -2 planted in the south part of Xinjiang was put forward in this paper:the LAI was 0.51 at the squaring and was 1.63 at the flowering,the maximum of LAI reached 4.16 at the full bolling,at the opening boll LAI kept 3.89,the average daily increased dry matters was 65.7kg·hm -2 ,before the peak flowering,and was 322.5kg·hm -2 from the peak flowering to the full bolling;the average daily net photosynthetic time was 13 hours,the max.peak of Pn was 40.9,the max.peak of CAP was 4.2;the bolls carried by leaf was 27.31 bolls kg·m -2 leaf,the lint weight carried by leaf was 0.172kg·m -2 leaf.
出处
《石河子大学学报（自然科学版）》
CAS
1998年第S1期77-80,共4页
Journal of Shihezi University(Natural Science)
关键词
棉花
超高产
生育规律
cotton
sup high yield
laws of growth and development
