硕桦优树选择及不同种源、家系苗期评价  

Superior Tree Selection of Betula costata and Evaluation of Different Provenances and Families at Seedling Stage

作　　者：陈士刚[1] 邹建军[1] 山昌林 李秀红 芦静 王岗 CHEN Shigang;ZOU Jianjun;SHAN Changlin;LI Xiuhong;LU Jing;WANG Gang(Jilin Provincial Academy of Forestry Sciences,Changchun 130033,China;Jilin Provincial Forestry Technology Popularizing Station,Changchun 130022,China;Jingshan Nursery of Sanchazi Forestry Limited Company of Jilin Forest Industry Group,Baishan 135200,China;Fast-growing and High-yield Plantation Work Station of Jilin Province,Changchun 130022,China;State-owned General Forestry Farm of Fuyu City,Songyuan 131214,China)

机构地区：[1]吉林省林业科学研究院,吉林长春130033 [2]吉林省林业技术推广站,吉林长春130022 [3]吉林森工三岔子林业有限公司景山苗圃,吉林白山135200 [4]吉林省速生丰产林工作站,吉林长春130022 [5]扶余市国有林总场,吉林松原131214

出　　处：《吉林林业科技》2023年第2期1-5,23,共6页Journal of Jilin Forestry Science and Technology

基　　金：国家重点研发计划子课题(2017YFD0600603-04)。

摘　　要：采用小样地评选法进行硕桦优树选择,在5个种源地共选择优树150株。各种源地优树胸径、树高年平均生长量分别高于样地平均值32.39%~38.13%和5.13%~21.85%。分析了5个种源1年生秋播苗和春播苗的生长差异,秋播苗均好于春播苗,各种源间高生长差异显著。对1年生和2年生苗木苗高和地径生长量方差分析表明,各种源(家系)苗高、地径生长量间差异均达显著或极显著水平。以种源进行分析,白河种源最优,其次为靖宇种源和汪清种源,敦化种源和临江种源较差,白河种源平均苗高超过所有种源苗高平均值8.15%,平均地径超过所有种源地径平均值5.34%;以家系进行分析,BH-1、BH-2、BH-3、BH-4、BH-5、BH-6、BH-7、JY-1、JY-3、WQ-1和WQ-2这11个家系的苗木长势较好,是硕桦优良家系的重点选择对象。The small plot selection method was used to select superior trees of Betula costata,and 150 superior trees were selected from 5 provenances.The average annual increments of DBH and height of superior trees in various provenances were 32.39%-38.13%and 5.13%-21.85%higher than the average value,respectively.The growth difference of 1-year-old autumn-sowing seedlings and spring-sowing seedlings of 5 provenances was analyzed.The autumn-sowing seedlings were better than the spring-sowing seedlings,and the height difference among different provenances was significant.The results of variance analysis of seedling height and ground diameter of 1-year-old and 2-year-old seedlings showed that there were significant or extremely significant differences in seedling height and ground diameter among different provenances(families).In terms of provenances,Baihe provenance was the best,followed by Jingyu provenance,and Wangqing provenance,Dunhua provenance and Linjiang provenance were worse.The average seedling height of Baihe provenance was 8.15%higher than the average seedling height of all provenances,and the average ground diameter was 5.34%higher than the average ground diameter of all provenances.In terms of families,the seedlings of 11 families of BH-1,BH-2,BH-3,BH-4,BH-5,BH-6,BH-7,JY-1,JY-3,WQ-1 and WQ-2 grew well,and those were the key selection objects of excellent families.

关 键 词：硕桦 优树选择 种源试验 苗期观测 

分 类 号：S792.15[农业科学—林木遗传育种]