柳树新无性系的早期选择  

EARLY SELECTION OF NEW CLONE IN WILLOW

作　　者：吴修甲 孙仲序[1] 张金英[1] 

机构地区：[1]山东泰安市泰山区林业局,山东农业大学林学院

出　　处：《山东农业大学学报（自然科学版）》1994年第4期463-468,共6页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：本试验在柳树杂种无性系林分中，采摘自由授粉种子，通过超级苗选择，建立苗期试验林。经研究认为：实生苗木群体变异广泛，选择优质苗木的可能性较大，并初步选择出速生优良无性系Ｎ４．２、Ｎ２．２、Ｂ１．３和Ｂ１．１，同时测算了某些性状间的相关系数。A new trial plantation of young clones propagated from selecting super seedling of second generation was eastablished through collecting free pollination seeds in clone plantation of willow of 5 year-old. The study proved that the variation ofseedling population is very rich, the possibility of selecting out super seedling is greater.Now preliminarily, rapid good clone N4.2, N2.2, B1.3 and B1.1 are selected and relativecoefficients of some characters are caculated.

关 键 词：柳树 无性系 超级苗 相关系数 

分 类 号：S792.12[农业科学—林木遗传育种]