油茶不同苗龄苗木质量及造林成效分析  

Analysis on Seedling Quality and Afforestation Effect of Different Camellia oleifera Seedling Ages

作　　者：谢少义 李伟强 梁健烽 叶维军 蔡娅 魏育 江泽鹏 Xie Shaoyi;Li Weiqiang;Liang Jianfeng;Ye Weijun;Cai Ya;Wei Yu;Jiang Zepeng(Cenxi Soft-branch Oil-tea Seed Orchard,Cenxi,Guangxi 543200,China;Guangxi Forestry Research Institute,Guangxi Key Lab-oratory of Special Non-wood Forest Cultivation&Utilization,Nanning,Guangxi 530002,China;Qiping Forest Farm in Cenxi City,Cenxi,Guangxi 543200,China)

机构地区：[1]岑溪市软枝油茶种子园,广西岑溪543200 [2]广西壮族自治区林业科学研究院广西特色经济林培育与利用重点实验室,广西南宁530002 [3]岑溪市七坪林场,广西岑溪543200

出　　处：《广西林业科学》2021年第5期504-507,共4页Guangxi Forestry Science

基　　金：广西创新驱动发展专项资金项目(桂科AA20302021-1,桂科AA20302021-4)。

摘　　要：为更好地指导广西油茶(Camellia oleifera)造林,使用岑软2号、3号、11号和24号油茶无性系不同苗龄苗木造林,对造林后植株的株高、地径、冠幅和花芽分化率进行对比分析。结果表明,造林1.5年,岑软2号和3号2年生和3年生苗木造林植株的株高、地径、冠幅和花芽分化率均显著高于1年生苗木造林植株(除岑软3号的株高和花芽分化率);造林3.5年,岑软2号和3号2年生苗木造林植株的株高、地径和冠幅均显著高于1年生苗木造林植株(除岑软3号的株高);岑软2号3年生苗木造林1.5年植株的株高显著高于1年生苗木造林3.5年植株。2年生苗木造林3.5年,各品种植株的株高、地径和花芽分化率均差异不显著,冠幅差异显著;3年生苗木造林1.5年,各品种植株的株高、地径、冠幅和花芽分化均差异显著。苗龄可显著影响油茶幼林的生长指标;使用大苗造林,早期促进株高生长的作用明显;不同品种大苗造林时,不是苗龄越大越好,需综合考虑。In order to better guide Camellia oleifera afforestation in Guangxi,taking seedlings of Cenruan 2,3,11 and 24 at different stages for afforestation,effects on plant height,ground diameter,crown width and flower bud differentiation rate were compared and analyzed after afforestation.Results showed that plant heights,ground diameters,crown widths and flower bud differentiation rates of 1.5-year-old plants afforested by 2-year-old and 3-year-old seedlings of Cenruan 2 and 3 were significantly higher than those of plants afforested by 1-year-old seedlings except for plant height and bud differentiation rate of Cenruan 3.Plant heights,ground diameters and crown widths of 3.5-year-old plants afforested by 2-year-old seedlings of Cenruan 2 and 3 were significantly higher than those of plants afforested by 1-year-old seedlings except for plant height of Cenruan 3.Plant height of 1.5-year-old plants afforested by 3-year-old seedlings of Cenruan 2 was significantly higher than that of 3.5-year-old plants afforested by 1-year-old seedlings.Plant heights,ground diameters and flower bud differentiation rates of 3.5-year-old plants afforested by 2-year-old seedlings of different varieties had no significant differences,and crown widths had significant differences.Plant heights,ground diameters,crown widths and flower bud differentiation rates of 1.5-year-old plants afforested by 3-year-old seedlings of differ⁃ent varieties had significant differences.Seedling age could affect growth indexes of C.oleifera young forests sig⁃nificantly.Effect of afforestation by large seedlings on plant height was significant at early stage.Taking large seedlings of different varieties for afforestation,overall consideration should be taken except for seedling age.

关 键 词：大苗造林 生长情况 油茶 苗龄 

分 类 号：S794.4[农业科学—林木遗传育种]