摘要
以南亚松(Pinus latteri)种子园嫁接无性系为研究对象,分析南亚松无性系的成活率和生长性状,为南亚松种质资源保存、种子园营建及良种选育提供参考。结果表明,南亚松种子园不同种源的无性系成活率在28%~88%之间,平均58.5%。海南和越南种源无性系的平均成活率高于防城港。3个种源南亚松嫁接株的平均接穗高生长量、接穗径生长量、冠幅和主干分枝数分别为91 cm、31.32 mm、73 cm和5,不同指标间均呈极显著正相关(P<0.01)。成活率大于70%的17个无性系间对比分析表明,越南无性系的生长优于海南无性系;多重比较分析表明来自越南的11#和13#无性系生长最优。
Survival rate and growth traits of Pinus latteri clones in seed orchards were investigated to provide reference for germplasm conservation,seed orchard establishment and selection of improved varieties.Results showed that survival rate of P.latteri clones varied from 28%to 88%with an average value of 58.5%.The average survival rates of Hainan and Vietnam clones were higher than that of Fangchenggang clones.The average height growth,diameter growth,crown width and trunk branch number of grafted seedlings were 91 cm,31.32 mm,73 cm and 5,respectively,and there were extremely significant positive correlations(P<0.01)among different growth traits.Comparative analysis of 17 clones with survival rate greater than 70%showed that Vietnam clones grew faster than Hainan clones,and multiple comparison of growth traits indicated that 11#and 13#clones from Vietnam were optimal clones.
作者
胡拉
韦海
傅锋
邓楠楠
陈虎
杨章旗
Hu La;Wei Hai;Fu Feng;Deng Nannan;Chen Hu;Yang Zhangqi(Guangxi Forestry Research Institute,Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Masson Pine Engineering Technology Research Center of Guangxi,Nanning 530002,China;Guangxi State-owned Bobai Forest Farm,Yulin 537617,China)
出处
《广西林业科学》
2019年第4期444-448,共5页
Guangxi Forestry Science
基金
广西创新驱动发展专项(桂科AA17204087-1)
广西科技基地和人才专项(桂科AD16380010)
“广西八桂学者”专项经费
关键词
无性系
成活率
生长性状
南亚松
clones
survival rate
growth traits
Pinus latteri
