杉木第4代育种群体苗期早期选择  

Early selection of Cunninghamia lanceolata(Lamb.)Hook at seedling stage in the fourth generation breeding population

作　　者：王子墨 张龙 叶代全 黄金华 边黎明[2] 郑仁华[3] 林泽忠 郑雪燕 WANG Zimo;ZHANG Long;YE Daiquan;HUANG Jinhua;BIAN Liming;ZHENG Renhua;LIN Zezhong;ZHENG Xueyan(Yangkou State-owned Forest Farm,Shunchang 353211,China;College of Forestry and Grassland,Nanjing Forestry University,Nanjing 210037,China;Fujian Academy of Forestry,Fuzhou 350012,China)

机构地区：[1]福建省洋口国有林场,福建顺昌353211 [2]南京林业大学林草学院,南京210037 [3]福建省林业科学研究院,福州350012

出　　处：《四川林业科技》2025年第1期63-70,共8页Journal of Sichuan Forestry Science and Technology

基　　金：福建省林木种苗科技攻关七期项目“杉木第4代育种研究与应用”(ZMGG-0701);福建省林业科技项目“杉木矮化高产种子园营建集成技术研究与示范”(2022FKJ05)。

摘　　要：为持续开展杉木高世代育种研究,营建杉木高世代种子园,对杉木第4代育种群体中169个入选家系(含对照1个)1年生苗的苗高、地径、分枝数和高径比等4个形态指标进行分析。结果表明:综合性状表现较好的8个家系为2-16、2-17、2-47、2-77、3-259、5-33、5-36、10-204;各家系间指标性状变异明显且均存在极显著相关性,地径越粗壮,分枝数越多;苗高、地径是苗木生长的主要影响因子。筛选的家系可为杉木高世代种子园建设提供参考。In order to carry out continuous research on high-generation breeding of Chinese fir and build a highgeneration seed garden,4 morphological indexes(height,ground diameter,branch number and height-diameter ratio)of 1-year-old seedling of 169 selected families(including 1 control)in the fourth generation breeding population of Chinese fir were analyzed.The results showed that the 8 families with good comprehensive characters were 2-16,2-17,2-47,2-77,3-259,5-33,5-36,and 10-204.The variation of index characters was obvious and there was a very significant correlation among all characters.The thicker the ground diameter,the more branches there were.Seedling height and ground diameter were the main factors affecting seedling growth.The screened families can provide reference for the construction of high generation seed orchard of Chinese fir.

关 键 词：杉木 苗高 地径 分枝数 

分 类 号：S791.27[农业科学—林木遗传育种]