闽西桐棉马尾松无性系早期生长分析与评价OA
Analysis and Evaluation of Early Growth of Tongmian Pinus massoniana Clones in Western Fujian
为评价桐棉马尾松无性系在闽西的早期表现,对 23 个 4 年生无性系的胸径、树高和单株材积进行分析.结果表明:各性状在无性系间差异显著,平均胸径、平均树高和平均单株材积较当地实生苗分别提高了 17.22%、7.83%和 58.52%.23 个无性系表型变异丰富,无性系单株材积表型变异系数(38.35%)和遗传变异系数(28.67%)均最高,显示较大改良潜力,各性状重复力均大于0.60,生长受较强遗传控制.通过聚类与隶属函数法综合评价,筛选出 C2、C3、C5、C7、C10、C11、C12、C14 和 C16 共 9 个优良无性系,其胸径、树高和单株材积平均现实增益分别为 22.11%～25.04%、8.42%～11.13%和 66.84%～86.86%,平均遗传增益分别为 17.25%～19.53%、6.90%～9.13%和 41.44%～53.85%.
In order to evaluate the early performance of Tongmian Pinus massoniana clones in western Fuji-an,the DBH,tree height and individual volume of 23 4-year-old clones were analyzed.The results showed that the traits were significantly different among clones.The average DBH,average tree height and average individual volume were 17.22%,7.83%and 58.52%higher than those of local seedlings,respectively.The phenotypic vari-ation of 23 clones was rich,and the phenotypic variation coefficient(38.35%)and genetic variation coefficient(28.67%)of individual volume were the highest,showing great improvement potential.The repeatability of each trait was greater than 0.60,and the growth was controlled by strong heredity.Through comprehensive evaluation by clustering and membership function method,9 superior clones of C2,C3,C5,C7,C10,C11,C12,C14 and C16 were selected.The average real gains of DBH,tree height and individual volume were 22.11%–25.04%,8.42%–11.13%and 66.84%–86.86%,respectively.The average genetic gains were 17.25%–19.53%,6.90%–9.13%and 41.44%–53.85%,respectively.
洪永辉;吴家新;姚瑞玲;陈步先;黄日奎;邹秉章;王胤
广西壮族自治区林业科学研究院,广西林业实验室,广西 南宁 530002||龙岩市林业科学研究所,福建 龙岩 364000龙岩市林业科学研究所,福建 龙岩 364000广西壮族自治区林业科学研究院,广西林业实验室,广西 南宁 530002龙岩市林业科学研究所,福建 龙岩 364000福建省漳平五一国有林场,福建 龙岩 364400福建省上杭白砂国有林场,福建 龙岩 364000广西壮族自治区林业科学研究院,广西林业实验室,广西 南宁 530002
农业科技
马尾松无性系生长性状遗传变异综合评价
Pinus massonianaclonegrowth traitgenetic variationcomprehensive evaluation
《西南林业大学学报》 2026 (9)
1-6,6
广西林业科技推广示范项目(桂林科研[2025KX]第17号,桂林科研[2021]3号)资助广西科技计划项目(桂科AB24010290,2024GXNSFDA010063,2023GXNSFAA026449,桂科AD17195078)资助国家自然科学基金项目(32460382,32260381)资助.
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