| 玉米倒伏及其对产量的影响 |
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| 引用本文： | 程富丽,杜雄,刘梦星,靳小利,崔彦宏.玉米倒伏及其对产量的影响[J].玉米科学,2011,19(1):105-108. |
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| 作者姓名： | 程富丽 杜雄 刘梦星 靳小利 崔彦宏 |
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| 作者单位： | 河北农业大学农学院,河北省作物生长调控实验室,河北保定,071001 |
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| 基金项目： | “十一五”国家科技支撑计划重大项目“国家粮食丰产科技工程”(2006BAD02A08) |
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| 摘 要： | 采用试验与生产调查相结合的方法,分析倒伏玉米植株性状表现及对产量的影响,研究种植密度、品种选择和氮钾肥对玉米抗倒伏的影响。结果表明,不同品种间抗倒伏能力存在显著差异,株高和穗位高不能作为评价品种抗倒伏能力强弱的主要指标,茎秆基部节间粗和长粗比值小的品种具有较强的抗茎折能力;随着密度的提高,植株的抗倒伏能力下降;氮钾肥配施能有效提高茎秆的抗倒伏能力。玉米吐丝1周后倒伏品种的穗粒数、千粒重、穗粒重分别降低19.4%～30.2%、29.6%～31.8%、45.0%～50.8%。
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| 关 键 词： | 玉米 倒伏 产量 |
| 收稿时间： | 2010/1/20 0:00:00 |
Lodging of Summer Maize and the Effects on Grain Yield |
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| CHENG Fu-li,DU Xiong,LIU Meng-xing,JIN Xiao-li,CUI Yan-hong.Lodging of Summer Maize and the Effects on Grain Yield[J].Journal of Maize Sciences,2011,19(1):105-108. |
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| Authors: | CHENG Fu-li DU Xiong LIU Meng-xing JIN Xiao-li CUI Yan-hong |
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| Institution: | CHENG Fu-li,DU Xiong,LIU Meng-xing,JIN Xiao-li,CUI Yan-hong(College of Agronomy,Agricultural University of Hebei/Key Laboratory of Crop Growth Regulation of Hebei Province,Baoding 071001,China) |
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| Abstract: | The apparent characters of lodging maize plant,the effects of planting density,variety selection,and nitrogen-potassium combined application on stem-lodging resistance and grain yield were analyzed.The results showed that there was significant difference among different maize hybrids.Plant height and ear height should not be regarded as the major indexes to evaluate the lodging resistance of maize,and the stalk breaking resistance of the hybrid was strong which was characterized as a thick basal stem and a ... |
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| Keywords: | Maize Lodging Yield |
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