金冠苹果杂交果实可溶性固形物含量的遗传特性研究

为分析金冠苹果果实可溶性固形物含量的遗传规律，2007～2010年以金冠为亲本3个组合（红玉×金冠、金冠×红玉、金冠X津轻）杂种实生树和金冠自然实生树共计2863株为试材，对其F，代果实的可溶性固形物含量进行了测定，并分析了果实可溶性固形物含量的遗传特性。结果表明：果实可溶性固形物含量是受多基因控制的数量性状，其中，金冠作为母本时杂种后代果实的可溶性固形物含量变异幅度较小（10％～21％）；金冠果实可溶性固形物含量的遗传传递力为110．4％～112．6％，杂种后代果实可溶性固形物含量具有明显增加的趋势．有利于选育出可溶性固形物含量高的苹果种盾．

Study on Genetic Characteristics of Soluble Solids Content in Hybrid Fruits of Golden Delicious Apple

To study the genetic regularity of soluble solids content in fruit of Golden Delicious apple, the soluble solids content of F1 generation fruit of 2 863 strains including hybrid seedling trees of three combinations （ Hongyu x Golden Delicious, Golden Delicious x Hongyu, Golden Delicious x Tsugarau ） with Golden Delicious as a parent and Golden Delicious seedling trees were determined, and the genetic characteristics of fruit soluble solids content was analyzed. The results showed that fruit soluble solids content was a quantitative trait controlled by multiple genes, the variation of fruit soluble solids content of hybrid progeny with Golden Delicious as female parent was smaller （ 10% - 21% ） , the heritability of fruit soluble solids content of Golden Delicious was from 110. 4% to 112. 6%, which meant the soluble solids content of hybrids had a significantly rising trend and it was useful for selecting the high levels germplasms.