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作 者 ：王玮 邹琦

期 刊 ：西北植物学报 1997年 4期

关键词：胚芽鞘；遗传率；抗旱性；小麦；冬小麦；水分胁迫；

Keywords:coleoptile, heritability, drought-resistant, wheat,

摘 要 ：研究结果表明：抗旱性不同的小麦品种低水势下芽鞘长差异显著，抗旱性强的品种芽鞘长度高于抗旱性弱的品种。分析了低水势下芽鞘长度与大田干旱条件下产量的相关性，发现低水势下芽鞘长度与旱田产量，抗旱系数的相产 达显著或极显著水平。对低水势下芽鞘长度的遗传率进行了测定，证明该指标的广义遗传率及狭义遗传率都很高，可以用这一指标在进育种早代材料中进行抗旱个体选择。认为，低水势下芽鞘长是抗旱鉴定与抗育种个体选择的良

Abstract:7 Different wheat varieties were used,the lensin of coleoptile was measured,the results indicated that the length of coleoptile in drought-resistant genotypes was longerthan that of disdrought resistant ones,and the difference was very significant. The re

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