湖北农业科学 ›› 2025, Vol. 64 ›› Issue (4): 46-50.doi: 10.14088/j.cnki.issn0439-8114.2025.04.009

• 育种·栽培 • 上一篇    下一篇

小麦株高、旗叶和穗部性状的遗传特性及相关分析

周芳菊, 张道荣, 凌冬, 汤清益, 孙华卫, 唐清, 王志顺, 刘先斌, 王鑫, 汤三明   

  1. 湖北省襄阳市农业科学院,湖北 襄阳 441057
  • 收稿日期:2024-10-23 出版日期:2025-04-25 发布日期:2025-05-12
  • 通讯作者: 凌冬(1973-),正高级农艺师,主要从事小麦育种及高产栽培技术研究,(电子信箱)125845861@qq.com。
  • 作者简介:周芳菊(1977-),女,湖南江永人,副研究员,主要从事小麦遗传育种和高产栽培技术研究,(电子信箱)xiangfan520@163.com。
  • 基金资助:
    湖北省自然科学基金项目(2022CFD093); 国家现代农业小麦产业技术体系项目(CARS-03-81); 湖北省农业科技创新中心项目(2024-620-000-001-04); 湖北洪山实验室开放课题(2021hskf009)

Genetic characteristics and correlation analysis of plant height, flag leaf and spike traits in common wheat

ZHOU Fang-ju, ZHANG Dao-rong, LING Dong, TANG Qing-yi, SUN Hua-wei, TANG Qing, WANG Zhi-shun, LIU Xian-bin, WANG Xin, TANG San-ming   

  1. Xiangyang Academy of Agricultural Sciences, Xiangyang 441057, Hubei, China
  • Received:2024-10-23 Published:2025-04-25 Online:2025-05-12

摘要: 对湖北省种植的20个小麦(Triticum aestivum L.)品种的株高及主茎的旗叶长度、旗叶宽度、小穗数、穗粒数等性状的变异系数和相关性进行分析。结果显示,小麦株高和小穗数的变异系数较小,遗传稳定性较高;而退化小穗数的变异系数较大,受环境影响最明显。各性状之间存在不同程度的相关性,单穗重与旗叶长度、旗叶宽度、穗粒数、穗长、小穗数均呈极显著正相关,与退化小穗数、穗颈长均呈极显著负相关(P<0.01);退化小穗数、穗颈长与穗粒数、小穗数间均呈显著负相关(P<0.05)。

关键词: 小麦(Triticum aestivum L.), 农艺性状, 株高, 旗叶, 穗部性状, 遗传特性, 变异系数, 相关分析

Abstract: The variation coefficient and correlation of plant height, flag leaf length, flag leaf width, spikelet number and kernel number per spike of the main stem in 20 wheat (Triticum aestivum L.) varieties planted in Hubei Province were analyzed. The results indicated that the variation coefficients of plant height and spikelet number were small, suggesting high genetic stability. Conversely, the variation coefficient of degenerate spikelet number was larger, indicating a more significant influence from the environment. There were varying degrees of correlation among the traits. The single-spike weight had a highly significant positive correlation with flag leaf length, flag leaf width, kernel number per spike, spike length and spikelet number (P<0.01), while it had a highly significant negative correlation with degenerate spikelet and neck length of spike (P<0.01). Degenerate spikelet number and neck length of spike also had a significant negative correlation with kernel number per spike and spikelet number (P<0.05).

Key words: wheat (Triticum aestivum L.), agronomic traits, plant height, flag leaf, spike traits, genetic characteristics, variation coefficient, correlation analysis

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