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| 化学打顶对南疆棉花农艺和经济性状的影响 | |
| 引用本文： | 赵强,周春江,张巨松,李松林,恽友兰,田晓莉.化学打顶对南疆棉花农艺和经济性状的影响[J].棉花学报,2011,23(4):329-333. |
| 作者姓名： | 赵强 周春江 张巨松 李松林 恽友兰 田晓莉 |
| 作者单位： | 1. 中国农业大学农学与生物技术学院作物化学控制研究中心,北京100193;新疆农业大学;教育部棉花工程研究中心,乌鲁木齐830052 2. 北京市农业技术推广站,北京,100029 3. 新疆农业大学;教育部棉花工程研究中心,乌鲁木齐830052 4. 中国农业大学农学与生物技术学院作物化学控制研究中心,北京,100193 |
| 基金项目： | 国家“十一五”科技支撑计划项目，新疆“十一五”重大专项，农业部公益性行业(农业)科研专项，新疆自治区高校科研计划青年教师科研启动基金 |
| 摘 要： | 以陆地棉品种中棉所49号为材料,于2008 -2010年在新疆阿克苏市开展了化学打顶和人工打顶的田间对比试验,研究了2种打顶方式下棉花农艺性状、冠层特征、棉铃空间分布、产量性状及纤维品质的异同点.结果表明,化学打顶后棉株高于人工打顶,但株宽、果枝长及叶枝长显著低于人工打顶,因而株型更紧凑、见絮期冠层透光性好.化学打顶棉... |
| 关 键 词： | 棉花 化学打顶 农艺性状 产量 纤维品质 |
Effect of Chemical Detopping on the Canopy and Yield of Cotton(Gossypium hirsutum)in South Xinjiang |
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| ZHAO Qiang,ZHOU Chun-jiang,ZHANG Ju-song,LI Song-lin,YUN You-lan,TIAN Xiao-li.Effect of Chemical Detopping on the Canopy and Yield of Cotton(Gossypium hirsutum)in South Xinjiang[J].Cotton Science,2011,23(4):329-333. | |
| Authors: | ZHAO Qiang ZHOU Chun-jiang ZHANG Ju-song LI Song-lin YUN You-lan TIAN Xiao-li |
| Institution: | 1. Centre of Crop Chemical Control, College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China; 2. Cotton Engineering Research Centre, the Chinese Ministry of Education/Xinjiang Agricultural University, Urumqi 830052, China; 3. Beijing Agro-Technology Extension Station, Beijing 100029, China |
| Abstract: | Field experiment about cotton chemical and manual detopping was conducted in Akesu (41°17′N, 86°26′E), Xinjiang, with cultivar CCRI 49 as material, from 2008 to 2010. The chemical detopping agent contained slow-released mepiquat chloride and additives, and was applied at the same time as the manual detopping in cotton. The results indicated that the plants detopped by chemical agent were taller and narrower than those detopped by hands, which resulted in more light transmittance in middle and lower layer of cotton canopy. Additionally, chemical detopping did not alter the boll weight, but reduced the lint percent slightly. The boll number per plant and yield for chemical detopping were greater than those for manual detopping in 2010, but the same as the latter in 2009. There were no significant difference in comprehensive fiber quality between chemical detopping and manual detopping. It was concluded that the chemical detopping is a potential practice to replace the manual detopping in cotton in Xinjiang. |
| Keywords: | chemical detopping agronomic characters yield fiber quality |
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