| 4种植物生长延缓剂对浚单20的矮化抗倒效应 |
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| 引用本文： | 刘天学,赵春玲,常建智,李潮海.4种植物生长延缓剂对浚单20的矮化抗倒效应[J].江西农业学报,2010,22(12). |
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| 作者姓名： | 刘天学 赵春玲 常建智 李潮海 |
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| 作者单位： | 1. 河南农业大学,农学院,河南,郑州,450002
2. 河南省浚县农业科学研究所,河南,浚县,456284 |
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| 摘 要： | 在大田试验条件下,研究了金得乐、稀世宝、多效唑和矮大棒4种植物生长延缓剂对浚单20的矮化抗倒效应。结果表明,在60000、67500、75000、82500、90000株/hm25个种植密度水平于6~7片展开叶喷施4种植物生长延缓剂和16~17片展开叶喷施稀世宝均能显著降低浚单20株高,倒伏率显著下降;而对穗行数、行粒数和千粒重等产量性状影响较小,其变异主要源自密度的变化。在6~7片展开叶喷施多效唑和16~17片展开叶喷施稀世宝具有一定的增产效应;在6~7片展开叶喷施金得乐籽粒产量与对照基本持平,喷施稀世宝和矮大棒则略有减产。
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| 关 键 词： | 浚单20 植物生长延缓剂 矮化 倒伏 籽粒产量 |
Dwarfing and Lodging-resistant Effects of Four Plant Growth Retardants on Maize Cultivar Xundan 20 |
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| LIU Tian-xue,ZHAO Chun-ling,CHANG Jian-zhi,LI Chao-hai.Dwarfing and Lodging-resistant Effects of Four Plant Growth Retardants on Maize Cultivar Xundan 20[J].Acta Agriculturae Jiangxi,2010,22(12). |
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| Authors: | LIU Tian-xue ZHAO Chun-ling CHANG Jian-zhi LI Chao-hai |
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| Institution: | LIU Tian-xue1,ZHAO Chun-ling1,CHANG Jian-zhi2,LI Chao-hai1(1.College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China,2.Xunxian Agricultural Science Research Institute in Henan Province,Xunxian 456284,China) |
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| Abstract: | The dwarfing and lodging-resistant effects of four plant growth retardants(Jindele,Xishibao,Paclobutrazol and Aidabang) on maize cultivar Xundan 20 were studied through field tests in 2009.The results showed that spraying four plant growth retardants at the stage of 6~7 unrolling leaf and spraying Xishibao at the stage of 16~17 unrolling leaf all could significantly reduce the plant height and lodging percentage of Xundan 20 at the planting densities of 60000,67500,75000,82500 and 90000 plants/hm2.There wer... |
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| Keywords: | Xundan 20 Plant growth retardant Dwarfing Lodging Grain yield |
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