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Heritability and Genetic Correlation of Al-Tolerance with Several Agronomic Characters in Sorghum Assessed by Hematoxylin Staining
Al-tolerance Genetic correlation Hematoxylin staining method Heritability Sorghum
2009/7/29
Heritability and Genetic Correlation of Al-Tolerance with Several Agronomic Characters in Sorghum Assessed by Hematoxylin Staining.
摘要
以两个耐铝性不同的玉米自交系及它们的杂交和回交世代为材料，采用营养液培养方法，对玉米的耐铝性进行了遗传分析。结果表明，根系相对生物量具有较高的的遗传变异，其广义遗传率高达78.6%。但其狭义遗传率仅为15.4%，说明其遗传方式以显性效应为主。相反，地上部相对生物量具有相对较高的狭义遗传率（43.1%），其遗传方式以加性效应为主。在0.1m mol/L Al3+ 胁迫条件下，根系总的和活跃的...