[1]何贵平,林阳峰,程亚平,等.杉木无性系主要经济性状遗传变异和无性系选择[J].浙江林业科技,2015,35(01):65-67.
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杉木无性系主要经济性状遗传变异和无性系选择
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
35
期数:
2015年01期
页码:
65-67
栏目:
研究简报
出版日期:
2015-01-20

文章信息/Info

作者:
何贵平;林阳峰;程亚平;徐肇友;曹高铨;王帮顺;
中国林业科学研究院亚热带林业研究所;福建省邵武市林业局;浙江省庆元县庆元林场;浙江省龙泉市林业科学研究院;
关键词:
杉木无性系主要经济性状遗传相关无性系选择
摘要:
对福建省邵武市35个15年生杉木无性系试验林的树高、胸径、材积和木材基本密度4个主要经济性状进行了测定和分析,并采用指数选择法进行了优良无性系选择。结果表明:4个主要经济性状在无性系间达极显著差异水平,且有较高重复力和中等的变异系数;树高、胸径、材积3个生长性状间的遗传相关均为密切正相关,3个生长性状与木材密度间则均为弱度遗传负相关。采用材积和木材密度两个性状,应用选择指数选出7个优良无性系,它们在木材密度基本保持试验群体平均水平的情况下,材积比试验群体平均值大48.17%,比试验对照大105.45%。

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备注/Memo

备注/Memo:
国家“十二五”科技支撑项目“杉木三代育种技术研究与示范(2012BAD01B0201)”; 浙江省“十二五”农业新品种选育竹木育种重点项目“杉木高生产力优质新品种选育及示范(2012C12908-11)”的部分内容
更新日期/Last Update: 2015-01-20