枣实生后代性状分离研究

Study on the trait segregation of Chinese jujube naturally pollinated seedlings

对19个枣品种自然授粉后代枝干、叶片、针刺、开花等性状进行了调查分析。结果表明:1年生同一品种枣实生后代的不同单株间性状即出现分离,特别是株高、针刺长度、中心干节间距、枝展、分枝数、基径等性状分离现象明显,变异系数均大于25%。不同品种间2年生枣实生苗开花株率和花量差异很大。

The branch, leaf and spine characters of naturally pollinated seedlings of 19 varieties of Chinese jujube as female parent were studied. The results showed that most characters presented obvious segregation on different Chinese jujube seedlings from the same variety, especially the seedling height, length of spine, length between branches on the trunk, branch spread, number of branch and diameter at butt-end. Percentage of plant with blossom and number of flower of 2-year old Chinese jujube seedlings varied significantly among varieties of female parent.