红椿种源试验林早期生长表现  

Early growth test of different Toona ciliate provenances

作　　者：李艳[1] 吴际友[2,3] 邓小梅[4] 刘球[2,3] 陈明皋[2,3] 程勇[2,3] 黄明军[2,3] 黄小飞[2,3] 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]湖南省优质用材工程技术研究中心,湖南长沙410004 [3]湖南省林业科学院,湖南长沙410004 [4]华南农业大学,广东广州510642

出　　处：《湖南林业科技》2015年第5期50-54,共5页Hunan Forestry Science & Technology

基　　金：国家林业公益性行业科研专项(201004020)

摘　　要：对全国27个红椿种源2年生林分的生长进行测定，分析比较不同种源适应性和生长节律。结果表明：（1）云南普洱、广东云浮、云南保山、西双版纳、云南楚雄、广西西林、广西隆林、广东韶关种源保存率较低。（2）4～5月红椿树高生长较快，树高生长量占年树高生长量的41％，6月份为红椿树高持续快速生长期，其树高生长量占年树高生长量的36％，9至10月份树高生长总体趋于缓慢；6月份为地径快速生长期，其地径生长量占年地径生长量的35％，8月份地径生长缓慢，仅占16％；不同种源树高、地径生长有极显著差异，可开展种源的早期选择。The growth of 2-year-old Toona ciliate of 27 provenances were tested.In addition,the adaptability and growth rhythm of different Toona ciliate provenances were analysed.The results showed that：（1）The preservation rates were low in Yunnan Pu Er,Guangdong Yunfu,Yunnan Baoshan,Xishuangbanna,Yunnan Chuxiong,Guangxi Xilin,Guangxi Longlin,Guangdong Shaoguan.（2）The height growth was fast in April to May,when the height growth accounted for 41% of the total height growth.The fast growth period of plant height was in June,when the height growth accounted for 36% of the total height growth.The slow period of plant height appeared in September to October.The fast growth period of basal stem diameter was in June,when the basal stem diameter growth accounted for 35% of the total basal diameter growth.The basal stem diameter growth was slow in August.There were significant differences in tree height and basal stem diameter,which could carry out the early selection of different provenances.

关 键 词：红椿 种源 生长量 生长节律 

分 类 号：S792.99[农业科学—林木遗传育种]