摘要
本文对大兴安岭地区的春榆在苗期进行了优良家系的初步选择。结果表明:家系平均遗传力为0.61;从50个供试群体中选择出5个优良家系,分别是21号、40号、2号、39号、16号家系,遗传增益为17%。
The trial on elite family selection of Ulmus davidiana vat. japonica in seedling stage was carried out in Daxing＇anling foeest region and initial results were obtained： five superior families of Ulmus dadidiana vat. japonica were selected from 50 test colonies, which are No21, No40, No2, No39, No16, respectively. The genetic gain has reached 17 %.
出处
《吉林林业科技》
2006年第3期1-4,10,共5页
Journal of Jilin Forestry Science and Technology
关键词
春榆
家系
选择
遗传增益
davidiana vat. japonica
family
selection
genetic gain.
