【摘要】 在华山松结实性状遗传变异研究的基础上,以各无性系间的单株产籽重、千粒重、出种率等为选择指标,对紫溪山华山松无性系嫁接种子园内78个无性系进行综合选择。结果表明:98,46,42,4和92号等5个无性系综合选择指数(I)值高于1.50,且产量稳定,可选为高产优质无性系。更多还原

【Abstract】 Based on the heredity variation of the seed yield and quality of Pinus armandii,the selection test in Zixishan graft orchand was committed among 78 clones according the seed traits.The result indicated that the comprehensive selection indexes of Clones 98,46,42,4 and 92 surpassed 1.5 and their yield was stable,so they could be considered as high yield and quality clones.更多还原