引用本文:[点击复制]
[点击复制]
【打印本页】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
去除基部果枝对早衰棉花棉铃对位叶SPAD值 及纤维素合成的影响
张文静,王莹,吴涛,王文斌,金文俊
0
(安徽农业大学农学院,合肥 230036)
摘要:
以荃银2号和冀杂999为试验材料,通过在花铃初期去除基部2个果枝,研究去除基部果枝对早衰棉花棉铃对位叶SPAD值和棉纤维合成相关物质含量变化的影响。结果表明,去除基部果枝后的处理组,其SPAD值较对照组高;同时,去除基部果枝对棉纤维中蔗糖的转化率也有影响,主要表现为棉纤维中蔗糖转化率处理组高于对照组,且伏桃蔗糖转化率高于秋桃蔗糖转化率;随着铃龄的增加,去除基部果枝后的棉纤维中纤维素含量高于对照组纤维素含量。去除基部果枝可以延长棉铃对位叶的功能期,提高棉纤维中蔗糖转化率,有利于棉纤维素的生物合成。
关键词:  棉花;去果枝;早衰;SPAD  纤维素合成
DOI:10.13610/j.cnki.1672-352x.20151102.032
投稿时间:2015-06-15
基金项目:安徽省高校省级科学研究项目(KJ2013A120)和安徽农业大学学科骨干培育计划(2014XKPY-05)共同资助。
Effect of basal fruiting branch removal on SPAD values of the leaf subtending boll and cellulose synthesis in the premature cotton
ZHANG Wenjing,WANG Ying,WU Tao,WANG Wenbing,JIN Wenjun
(School of Agronomy, Anhui Agricultural University, Hefei 230036)
Abstract:
In this study, two cotton cultivars (“Quanyin-2”, “Jiza-999”) were used to research the effect of basal fruiting branch removal on SPAD values in the leaf subtending boll in the premature cotton and the related matter content during the cotton fiber development. The results indicated that the SPAD value in the treatment of removing two basal fruiting branches was higher than that of the control;meanwhile, removing basal two fruiting branches increased the transformation rate of sucrose and a higher transformation rate of sucrose was observed in the summer boll than in the autumn boll. With the growth of cotton age,the cellulose content in cotton fiber was higher than that in the control after removing basal fruiting branches. In conclusion, removing basal fruit branches could extend the functional period of the subtending leaf of the cotton boll and improve the transformation rate of sucrose in the cotton fiber; therefore, enhancing the biosynthesis of cotton cellulose.
Key words:  cotton  removal of fruiting branch  premature senescence  SPAD  cellulose synthesis

用微信扫一扫

用微信扫一扫