| 甜玉米(Zea mays L.saccharata Sturt)含糖量与主要农艺性状的相关及通径分析 |
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| 引用本文： | 高东雪,王玥,陈琪玉,王宇琪,赵仁贵.甜玉米(Zea mays L.saccharata Sturt)含糖量与主要农艺性状的相关及通径分析[J].分子植物育种,2020(4):1290-1296. |
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| 作者姓名： | 高东雪 王玥 陈琪玉 王宇琪 赵仁贵 |
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| 作者单位： | 吉林农业大学农学院 |
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| 基金项目： | 科技部星火计划项目(2015GA660007);吉林省财政厅作物育种项目(2012002);吉林省农业委员会农业育种及推广项目(2016YT08)共同资助。 |
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| 摘 要： | 为选育含糖量高的甜玉米品种,本试验对甜玉米含糖量与主要农艺性状进行相关性分析。结果表明,含糖量与穗长、株高、穗位呈正相关,与单穗重、秃尖长、穗粗、穗行数、行粒数、轴重、轴粗、百粒重、茎粗呈负相关。在实际选择中可以参考这些性状来选择含糖量高的甜玉米。为了更加清楚地了解各主要农艺性状和含糖量之间的直接效应和间接效应,对此进行通径分析,结果表明,各农艺性状对含糖量的通径系数顺序为穗长>株高>轴重>穗位>单穗重>穗粗>茎粗>行粒数>穗行数>百粒重>轴粗>秃尖长>皮渣率。本研究为今后选育含糖量高的甜玉米品种提供了重要的参考依据。
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| 关 键 词： | 甜玉米(Zea mays L.saccharata Sturt) 含糖量 农艺性状 相关分析 通径分析 |
Correlation and Path Analysis of Sugar Content and Main Agronomic Characters in Sweet Corn |
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| Gao Dongxue,Wang Yue,Chen Qiyu,Wang Yuqi,Zhao Rengui.Correlation and Path Analysis of Sugar Content and Main Agronomic Characters in Sweet Corn[J].Molecular Plant Breeding,2020(4):1290-1296. |
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| Authors: | Gao Dongxue Wang Yue Chen Qiyu Wang Yuqi Zhao Rengui |
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| Institution: | (College of Agriculture,Jilin Agricultural University,Changchun,130118) |
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| Abstract: | In order to select sweet corn varieties with high suger content, the correlation between sugar content and main agronomic traits of sweet corn was analyzed in this experiment. The results showed that sugar content was positively correlated with ear length, plant height and ear position, and negatively correlated with weight per ear, barren ear tip length, ear diameter, rows per ear, grain number per row, weight of corncob, thickness of corncob,100-grain weight, and stem diameter. In practical selection, we can refer to these traits to select sweet corn with high sugar content. In order to understand more clearly the direct and indirect effects between the main agronomic traits and sugar content, the path analysis was carried out, and the results showed that path coefficients of each agronomic trait on sugar content were in the order of ear length >plant height >weight of corncob >ear position >weight per ear>ear diameter>stem diameter>grain number per row>rows per ear>100-grain weight>thickness of corncob>barren ear tip length>skin dregs rate. This study prvides an important reference for breeding sweet maize varieties with high suger content in the future. |
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| Keywords: | Sweet corn(Zea mays L saccharata Sturt) Sugar content Agronomic traits Correlation analysis Path analysis |
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