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

doi:10.14088/j.cnki.issn0439-8114.2025.04.009

Abstract

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

CLC Number:

S512.1

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. Genetic characteristics and correlation analysis of plant height, flag leaf and spike traits in common wheat[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(4): 46-50.

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