通过在宜昌秭归桃叶橙试验基地群体选优,从桃叶橙18号中选育出一个少核优良品种金峡桃叶橙。为揭示该品种的来源,对其在秭归进行了连续3年的品比试验研究。结果表明,该品种在果实种子数量上显著少于桃叶橙18号,且在枝、叶、花、果和产量等方面都与对照品种桃叶橙18号在部分数量性状上存在一定的差异,但其生物学特性和结果习性则基本与对照相同,通过对两个品种的性状描述比较和DNA分子鉴定,可以证明金峡桃叶橙为桃叶橙18号的大果型少核芽变品种,它既保持了桃叶橙18号的优良品质,又具备了少核性状,是桃叶橙18号比较理想的优良芽变品种。 Through the selection of peach leaf orange test base group in Yichang, one small elite variety Jinship peach orange was bred from 18 peach orange. In order to reveal the source of the breed, we conducted a three-year product-ratio test on it. The results showed that the number of seeds was significantly less than that of Peach Orange at the same time. There were some differences in some quantitative traits between Peach Orange 18 and the control in the aspects of branch, leaf, flower, fruit and yield , But its biological characteristics and the results of the habitat is basically the same as the control, through the description of the traits of two varieties and DNA molecular identification, you can prove that the peach orange Jinsia Peach Orange No. 18 large fruit less nuclear mutation It not only maintains the good quality of Peach Orange 18, but also possesses less nucleus traits. It is the ideal mutant variety of Peach Orange 18.