马尾松不同家系组培苗造林对比试验  

Comparative experiment on afforestation of tissue cultured seedlings in different families of Pinus massoniana

作　　者：甘德煜 林武 罗敦 陈家平 王胤[2] GAN De-yu;LIN Wu;LUO Dun;CHEN Jia-ping;WANG Yin(Guangxi State Bobai Forest Farm,Bobai 537616,Guangxi,China;Guangxi Forestry Research Institute,Nanning 530002,China)

机构地区：[1]广西国有博白林场,广西博白537616 [2]广西林业科学研究院,南宁530002

出　　处：《湖北农业科学》2022年第8期69-72,共4页Hubei Agricultural Sciences

基　　金：广西林业科技推广示范项目(桂林科研[2021]3号);国家自然科学基金项目(31960311);广西科技计划项目(2018GXNSFDA281020)。

摘　　要：选用4个马尾松(Pinus massoniana)优良种质繁育的家系组培苗,在广西马尾松Ⅲ类产区开展不同地点造林对比试验,对4年生林分树高和胸径等生长指标进行研究。结果表明,不同地点立地条件差异对各马尾松家系组培苗生长性状造成了不同程度的影响;参试马尾松家系组培苗平均胸径和平均树高分别达到4.8 cm和3.74 m,与湿地松实生苗相比无明显差异;生长表现突出的家系B、家系C组培苗试验林,其平均胸径和平均树高分别为4.8、6.4 cm和3.91、4.39 m,分别比对照湿地松提高了26.3%、68.4%和7.4%、20.6%,其中,家系C胸径和树高生长达到广西马尾松Ⅱ类产区速生丰产标准。在本试验立地条件下使用马尾松组培苗造林获得了不低于湿地松实生苗的早期生长效果,研究结果对促进区域造林树种结构调整,保障人工林质量和效益精准提升具有重要参考价值。The comparative afforestation experiments were carried out in different locations of Pinus massonianaⅢproduction area in Guangxi with the tissue cultured seedlings of 4 families,and the growth indexes such as height and DBH of the four-year-old stand were studied and analyzed.The results showed that the differences in site conditions at different locations had different degrees of influ⁃ence on the growth traits of tissue cultured seedlings of Pinus massoniana families.The average DBH and height of tissue cultured seed⁃ling of 4 Pinus massoniana families at different afforestation sites were 4.8 cm and 3.74 m,respectively,which were not significantly different from those of Pinus elliottii seedlings.The average DBH and average height of families B and C with prominent growth perfor⁃mance were 4.8 cm,6.4 cm and 3.91 m,4.39 m,respectively,which were 26.3%,68.4%and 7.4%,20.6%higher than those of Pinus elliottii(CK).The DBH and height of family C reached the fast-growing and high-yield standard of Pinus massonianaⅡproduc⁃tion area in Gangxi.Under such site conditions,the early growth effect of Pinus massoniana tissue cultured seedlings is not less than that of Pinus elliottii seedlings.The research results have important reference value for promoting the structural adjustment of regional afforestation tree species and ensuring the accurate improvement of plantation quality and benefit.

关 键 词：马尾松(Pinus massoniana) 组培苗 造林 早期生长 

分 类 号：S791.248[农业科学—林木遗传育种]