摘要
以赣南162个杉木优树子代(半同胞家系)为研究对象,对其1年生苗木的苗高、地径、轮枝数生长情况进行测定与分析,旨在探究苗期生长性状因子的相关性和差异性并选择出表现好的杉木半同胞家系。结果表明:半同胞家系间的苗高、地径、轮枝数生长均存在极显著差异,苗高与地径、苗高与轮枝数以及地径与轮枝数均呈现出极显著正相关,结合苗高与地径的生长表现,通过LSD法初步选择出Y135、Y145、Y190、Y11、Y16、Y199、Y111这7个表现优良的杉木半同胞家系。
Taking 162 superior tree progeny(half-sib families)of Cunninghamia lanceolata in southern Jiangxi as the research objects,the growth of seedling height,ground diameter and number of branches were measured and analyzed in order to explore the correlation and difference of growth traits factors in seedling stage and select the half-sib families of C.lanceolata with good performance.The results showed that there were significant differences in seedling height,ground diameter and number of branches among half-sib families.There were significant positive correlations between seedling height and ground diameter,seedling height and number of branches,ground diameter and number of branches.In combination with the growth performance of seedling height and ground diameter,seven excellent half-sib families of C.lanceolata such as Y135,Y145,Y190,Y11,Y16,Y199 and Y111 were preliminarily selected by LSD method.
作者
欧斌
邓必平
宋墩福
翟学昌
朱江华
钟观音
OU Bin;DENG Bi-ping;SONG Dun-fu(Jiangxi Environmental Engineering Vocational College,Ganzhou,Jiangxi 341000)
出处
《安徽农业科学》
CAS
2020年第6期105-109,共5页
Journal of Anhui Agricultural Sciences
基金
江西省林业科技创新专项“赣南杉木高世代种子园无性系选育”(201504)。
关键词
杉木
半同胞家系
苗高
地径
轮枝数
Cunninghamia lanceolata
Half-sib family
Seedling height
Ground diameter
Number of branches
