| 甲哌鎓化控对南疆杂交棉功能叶生理指标及产量性状的影响 |
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| 引用本文： | 刘翠,张巨松,魏鑫,徐新霞.甲哌鎓化控对南疆杂交棉功能叶生理指标及产量性状的影响[J].棉花学报,2014,26(2):122-129. |
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| 作者姓名： | 刘翠 张巨松 魏鑫 徐新霞 |
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| 作者单位： | 新疆农业大学农学院/教育部棉花工程研究中心，乌鲁木齐830052 |
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| 基金项目： | 新疆维吾尔自治区“十二五”科技支撑项目（201231102） |
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| 摘 要： | 在南疆气候生态条件下,设置6组不同甲哌鎓喷施次数,以兆丰1号和鲁棉研30号2个杂交棉品种为材料,研究植物生长调节剂甲哌鎓对杂交棉功能叶生理特性及产量性状的影响。结果表明:喷施甲哌鎓并未改变杂交棉主要生理指标的变化规律,但较对照明显提高了同期各指标值及峰值持续时间。系统喷施甲哌鎓3~4次使得棉花株型紧凑,成铃率高;LAI前期上升快,峰值高且持续期长,后期下降缓慢;功能叶SPAD值增大且后期下降缓慢,净光合速率(Pn)峰值高且持续时间长;可溶性糖含量(SS)与可溶性蛋白质含量(SP)明显增加;皮棉产量增产显著。
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| 关 键 词： | 甲哌鎓 南疆 杂交棉 功能叶生理 产量性状 |
| 收稿时间： | 2013-08-05; |
Effects of Mepiquat Chloride on Physiological Indicators of Leaf Function and Characteristics of Yield of Hybrid Cotton in South Xinjiang |
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| Liu Cui,Zhang Jusong,Wei Xin,Xu Xinxia.Effects of Mepiquat Chloride on Physiological Indicators of Leaf Function and Characteristics of Yield of Hybrid Cotton in South Xinjiang[J].Cotton Science,2014,26(2):122-129. |
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| Authors: | Liu Cui Zhang Jusong Wei Xin Xu Xinxia |
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| Institution: | College of Agronomy, Xinjiang Agricultural University/Research Center of Cotton Engineering, Ministry of Education, Urumui 830052, China |
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| Abstract: | To investigate the effects of mepiquat chloride on biochemical leaf function and the characteristics of yield of hybrid cotton in south Xinjiang, two-element experiments were performed with six groups of different chemical controls and two different materials: Zhaofeng1 and Lumianyan30. Results showed that spaying mepiquat chloride did not change the regularity of the main physiological indicators of hybrid cotton, but did improve the peak and duration. Using mepiquat chloride three to four times was conducive to creating a compact plant of hybrid cotton, on which the number of fruit branches was 9-10, each with a higher number of bolls. The total quantity of bolls was approximately 175 × 104 plants·hm-2 and the boll weight was over 5.5 g. The LAI increased quickly, attaining a high value that had long duration, and then it declined slowly; after the emergence at 135 d, it remained above 2.0. Furthermore, a higher and slower decline in SPAD value and higher photosynthetic rate with longer duration were noted, obviously increasing the soluble sugar content and soluble protein content, leading to a significant increase in lint yield. |
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| Keywords: | south Xinjiang hybrid cotton physiological function of leaves characteristics of yield |
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