摘要
为建设油松高世代种子园,选择建园亲本,对50个油松种源苗木的新梢粗、新梢长和冻害程度3项指标进行观测分析。结果表明:不同种源在多个性状上存在广泛变异,各性状之间差异极显著;经过聚类分析,50个种源可划分为3类;经多重比较,初步认为,在山西表现最好种源是S118、石堡49号、S125、中湾5号和蔡家川22号。
In order to construct the high-generation seed orchard of Pinus tabulaeformis,the parents were selected to observe and analyze the three indexes of new shoot diameter,new shoot length and frost damage degree of 50 Pinus tabulaeformis provenance seedlings.The results showed as follows:there were extensive variations in multiple traits among different provenances,and the differences among the traits were extremely significant;the 50 provenances could be divided into three categories through cluster analysis;through multiple comparisons,it was preliminarily believed that the best provenances in Shanxi were S118,Shibao 49,S125,Zhongwan 5 and Caijiachuan 22.
作者
杜晔
Du Ye(National Forestry Bureau in Heicha Mountain of Shanxi Province,Lvliang 035200,China)
出处
《防护林科技》
2025年第1期51-53,共3页
Protection Forest Science and Technology
基金
山西省林业重点研发计划项目“油松种质资源收集与保存”(2023)。
关键词
油松
种源选择
遗传变异
抗逆性
Pinus tabuliformis
provenance selection
genetic variation
resilience
作者简介
杜晔(1992-),男,山西定襄人,大学,助理工程师,主要从事林木育种研究。
