| 玉米产量抗旱性状的杂种优势分析 |
| |
| 引用本文： | 于海秋; 曹敏建; 沈秀瑛,徐克章.玉米产量抗旱性状的杂种优势分析[J].玉米科学,2006,14(2):019-023. |
| |
| 作者姓名： | 于海秋; 曹敏建; 沈秀瑛 徐克章 |
| |
| 作者单位： | 1. 沈阳农业大学农学院,沈阳,110161
2. 吉林农业大学农学院,长春,130118 |
| |
| 基金项目： | 吉林省科技厅资助项目(203-79) |
| |
| 摘 要： | 利用耐旱性不同的玉米自交系,系统地研究了玉米产量抗旱性状在正常条件和水分胁迫下杂种优势的变化,比较了不同杂交模式的杂种优势,分析了玉米产量性状的遗传力。结果表明:单株产量、穗粗、行粒数、百粒重的杂种优势明显;高抗种质×低抗种质的杂种优势最高,其次为中抗种质×低抗种质和高抗种质×中抗种质杂交模式;单株产量的狭义遗传力为59.06%。
|
| 关 键 词： | 玉米 抗旱 水分胁迫 产量性状 杂种优势 狭义遗传力 |
| 文章编号： | 1005-0906（2006）02-0019-05 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-04-12 |
Analysis on Heterosis of Yield Drought-resistant Traits of Maize |
| |
| YU Hai-qiu,CAO Min-jian,SHEN Xiu-ying and XU Ke-zhang.Analysis on Heterosis of Yield Drought-resistant Traits of Maize[J].Journal of Maize Sciences,2006,14(2):019-023. |
| |
| Authors: | YU Hai-qiu CAO Min-jian SHEN Xiu-ying and XU Ke-zhang |
| |
| Abstract: | Different drought-tolerant maize inbred lines and hybirds were used to study the variation on heterosis and heritability of yield drought-resistant traits under normal condition and water stress and to compare the heterosis among different cross patterns.The results showed that the heterosis of yield,ear diameter,grain number in a row and weight of 100 grains were high.Cross between high-resistant germplasm and low-resistant germplasm had higher heterosis than other patterns.Narrow heritability of yield per plant was 59.06%. |
| |
| Keywords: | Maize Drought resistance Water stress Yield traits Heterosis Narrow heritability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《玉米科学》浏览原始摘要信息 |
| 点击此处可从《玉米科学》下载免费的PDF全文 |
