摘要
对14个杂交组合209株杂种的表现进行果实性状遗传倾向分析结果表明,果重、果形、综合品质属于数量性状遗传、杂种有广泛而连续的分离,表明枇杷在杂交和实生繁殖下经济性状衰退和趋中变异的普遍现象,皮色和肉色遗传是按复杂的图式进行的,可能是由一对或多对基因控制的不完全显性遗传。提出了枇杷杂交育种对亲本选择选配的意见。
The genetic trendency of fruit agronomic characters of 209 hybrid progenies from 14 cross combinations were analysed. The result showed as follow: Weight and shape of fruit, multiple quality belong to quantitative inheritance. Hybrid progenies had wide and continuous segregation, which showed the general rules of degenerated economic characters and the trendency of middle-taxis variance in hybridization and seedling multiplication of loquat. The heredity for color of peel and flesh is in accordance with a complicated pattern,and may be attributed to the incompletely dominant inheritance controlled by one pair or several pairs of gene. In this paper, the suggestions of selecting parent materials for cross-breeding in loquat were also made.
关键词
枇杷
杂交
果实性状
遗传
Loquat
Cross j Fruit agronomic character
Heredity
