旱地春小麦主要数量性状的相关遗传力及其通径分析  

Correlated Heritability and its Path Analysis of Major Quantitative Characteristics of Dryland Spring Wheat

作　　者：杨素梅 李秀明 崔金丽 

机构地区：[1]张家口市农业科学院,河北张家口075000

出　　处：《河北农业科学》2006年第3期62-64,共3页Journal of Hebei Agricultural Sciences

摘　　要：对新近育成的9个旱地高产春小麦新品种(系)的穗数、穗粒数、千粒重和产量4个主要数量性状进行了相关遗传力及其通径分析。结果表明:穗粒数与产量的相关遗传力最高,且对产量的直接作用最大。在旱地种植中,应以争取大穗多粒材料取得高产。Correlated heritability study and its path analysis of four major quantitative characterisics eg. Spike/hm^2, Kernels spike, 1 000 grain weight and Grain gieldlant/hm^2 of nine cuhivars developed recently from all parts of the country showed that correlated heritability of TKW and yield was the highest and the largest direct role to yield. It should be trying to get larger kernels to obtain much higher yield.

关 键 词：春小麦 旱地 数量性状 相关遗传力 通径分析 

分 类 号：S512.1[农业科学—作物学]