夏玉米品系(种)的产量比较及主要农艺性状的关联度分析 |
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引用本文: | 周得宝,王娟,王五洲,吴兰云,徐茂林,李明兵,周言虎,窦乐. 夏玉米品系(种)的产量比较及主要农艺性状的关联度分析[J]. 安徽农业科学, 2017, 45(26). DOI: 10.3969/j.issn.0517-6611.2017.26.015 |
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作者姓名: | 周得宝 王娟 王五洲 吴兰云 徐茂林 李明兵 周言虎 窦乐 |
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作者单位: | 宿州市农业科学院,安徽宿州,234000;安徽华成种业股份有限公司,安徽宿州,234000;灵壁县农业委员会,安徽宿州,234200;安徽省宿州市农业委员会,安徽宿州,234000 |
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摘 要: | [目的]研究淮北地区夏玉米品系(种)的产量与主要农艺性状关联度。[方法]运用灰色关联度分析方法,研究14个夏玉米品系(种)的产量与10个主要农艺性状间关联的主次关系及各性状间的相互关联程度。[结果]有76.9%品系的产量显著高于对照郑单958;主要农艺性状与产量关联度大小依次为秃尖长、株高、穗行数、穗长、行粒数、穗位高、百粒重、倒伏倒折率、出籽率、穗粗。[结论]在育种实践中应尽可能选择秃尖短、株高中等偏上、穗行数较多和穗长较长的品系。
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关 键 词: | 玉米 关联度分析 产量 农艺性状 |
Comparison of Yield and Correlation Degree between Main Agronomic Traits of Summer Maize Lines( Varieties) |
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Abstract: | [ Objective] The yield of summer maize and correlation degree of agronomic traits in Huaibei region were studied. [ Method] Based on the grey relational analysis method,the relationship between the yield of 14 summer maize lines( varieties) and 10 main agronomic traits and the correlation between the traits were studied. [Result] The yield of 76. 9% lines was significantly higher than that of control Zhengdan 958. The correlation degree order of main agronomic traits and yield was as follows:bare top length,plant height,ear row number,ear length,row grains,ear height,100-seed weight,lodging and stem broken rates,seed-producing percentage,ear diameter. [ Conclusion] In the breeding prac-tice, we should choose the long lines of the bald tip shorter,plant height higher,ear rows more. |
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Keywords: | Maize Correlation degree analysis Yield Agronomic traits |
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