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本文对苹果无融合生殖类型多倍体与有性生殖二倍体3个杂交组合的部分杂种染色体数目进行了观察,发现有10个单株是2n=4x=68的四倍体,其中平邑甜茶×B_9的有82-1-1、83-1-2、83-1-3、83-1-4、83-1-5、83-1-7单株;卢氏海棠×B_9的有84-1-1、84-1-3单株;崑嵛红三叶海棠×B_9的有84-2-1单株;雅江变叶海堂×B_9的右84-3-1单株。
In this paper, we observed the number of partial hybrid chromosomes in three hybrid combinations of apomixis and sexual reproduction diploid, and found that 10 individuals were tetraploid with 2n = 4x = 68, Sweet tea × B_9 has 82-1-1, 83-1-2, 83-1-3, 83-1-4, 83-1-5, 83-1-7 single plant; Lolium begonia × B_9 84-1-1, 84-1-3; Kunlun red clover Begonia × B_9 has 84-2-1 single plant; Yajiang changed Yehai Hall × B_9 right 84-3-1 single plant.