湖北农业科学 ›› 2019, Vol. 58 ›› Issue (11): 12-17.doi: 10.14088/j.cnki.issn0439-8114.2019.11.003

• 育种·栽培 • 上一篇    下一篇

甜玉米苞叶与农艺性状的遗传及相关分析

张丽萍1, 谢富贵1, 冯迪南1, 宫捷1, 冯发强1, 宫庆友2   

  1. 1.华南农业大学农学院,广州 510642;
    2.珠海市农业科学研究中心,广东 珠海 519000
  • 收稿日期:2019-03-21 出版日期:2019-06-10 发布日期:2019-12-05
  • 通讯作者: 宫庆友,高级农艺师,硕士,主要从事玉米遗传育种及分子生物学相关研究,(电话)13926933578(电子信箱)gongqingyou@163.com。
  • 作者简介:张丽萍(1996-),女,河南西华人,在读硕士研究生,研究方向为鲜食玉米遗传育种,(电话)18819269281(电子信箱)2542058129@qq.com;谢富贵(1995-),男,安徽枞阳人,在读硕士研究生,研究方向为鲜食玉米遗传育种,(电话)18702036452(电子信箱)1757796386@qq.com。
  • 基金资助:
    广州市科技计划项目(201607010248); 大学生创新创业项目(201610564011)

Genetics and correlation analysis of husks and agronomic traits in sweet corn

ZHANG Li-ping1, XIE Fu-gui1, FENG Di-nan1, GONG Jie1, FENG Fa-qiang1, GONG Qing-you2   

  1. 1.College of Agriculture,South China Agricultural University,Guangzhou 510642,China;
    2.Zhuhai Agricultural Science Research Center,Zhuhai 519000,Guangdong,China
  • Received:2019-03-21 Online:2019-06-10 Published:2019-12-05

摘要: 以30份甜玉米(Zea mays L. sacharata Sturt)自交系及其配制的26个杂交组合为材料,利用加性-显性遗传模型对7个主要农艺性状和9个苞叶性状进行了遗传分析。结果表明,除最长苞叶宽外,所有性状的组合间均方都达显著或极显著差异,大多数性状的加性方差占比大于显性方差占比,所有性状的误差方差均达显著或极显著水平;对亲本的农艺性状和苞叶性状的加性效应和显性效应值进行了预测,亲本M06的多数性状表现为显著或极显著的加性正效应,组合M06×S85的多数性状表现为显著或极显著的显性正效应;相关分析发现鲜穗重分别与净穗重、穗上叶片数、穗位叶宽、苞叶干重、苞叶总面积和苞叶平均宽呈显著或极显著正相关,净穗重分别与穗位叶宽和苞叶平均宽呈显著正相关,穗位叶长和苞叶总面积、穗位叶宽与苞叶干重呈极显著正相关。

关键词: 甜玉米(Zea mays L. sacharata Sturt), 苞叶性状, 农艺性状, 遗传模型, 相关分析

Abstract: 30 sweet corn inbred lines and 26 crosses from them were selected as the materials, 7 agronomic traits and 9 husk traits were identified and analyzed by additive-dominant genetic model. The results showed that the mean squares of all traits except for the width of the longest husk reached significant difference at the 0.05 or 0.01 level. The additive variance ratio was greater than the dominant variance ratio in most traits, and the error variance ratio reached significant at the 0.05 or 0.01 level in all traits. The additive and dominant effect values of agronomic traits and husk traits were predicted in 30 sweet corn inbred lines. The additive effect values of most agronomic traits and husk traits in M06 were positive and significant at the level of 0.05 or 0.01. The dominant effect values of most agronomic traits and husk traits in M06×S85 were positive and significant at the level of 0.05 or 0.01. The correlation analysis showed that fresh weight of ear was positively correlated with net weight of ear, number of leaves above ear, the width ear leaf of dry weight of husks, total area of husks and average width of husks, respectively. Net ear weight was positively correlated with the width of ear leaf and average width of husks, respectively. The correlations between the length of ear leaf and the total area of husks, between the width of ear leaf and dry weight of husks were positively and significant.

Key words: sweet corn(Zea mays L. sacharata Sturt), husk traits, agronomic traits, genetic model, correlation analysis

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