山西省白榆优良速生家系的选育  

Breeding of Excellent Fast-growing Families of Ulmus Pumlia in Shanxi Province

作　　者：王振龙[1] 马豪宇 王东洪 Wang Zhenlong;Ma Haoyu;Wang Donghong(Taiyuan Forestry Science Research Institute,Taiyuan 030003,China)

机构地区：[1]太原市林业科学研究所,山西太原030003

出　　处：《山西林业科技》2024年第1期49-52,共4页Shanxi Forestry Science and Technology

摘　　要：在山西省各地共采集46个白榆优良家系进行播种育苗,对其生长指标进行测定分析,以筛选出苗高、基径和高径比表现较好的家系。结果表明,白榆不同家系间的苗高、基径和高径比均存在极显著差异。根据多重比较和变异系数可知,以苗高为标准进行筛选时,家系26为最优家系;以基径为标准进行筛选时,家系29为最优家系;以高径比为选择标准时,家系4为较优家系。46 excellent families of Ulmus pumlia were collected in various parts of Shanxi Province for sowing and seedling cultivation.Their growth indicators were measured and analyzed to select families with better seedling height,basal diameter and height-diameter ratio.The results showed that there were extremely significant differences in seedling height,basal diameter and height-diameter ratio among different families of Ulmus pumila.According to multiple comparisons and coefficient of variation,family 26 was the optimal family when screening based on seedling height.Family 29 was the optimal family when screening based on basal diameter,while family 4 was the superior family when screening based on height-diameter ratio.

关 键 词：山西 白榆 苗高 基径 高径比 

分 类 号：S792.19[农业科学—林木遗传育种]