容器规格和基质配方对红锥幼苗生长及造林效果的影响  

Effects of Container Size and Matrix Formula on Seedlings Growth and Early Field Performance of Castanopsis hystrix

作　　者：陈琳[1] 曾杰[2] 贾宏炎[1] 蒙彩兰[1] 黎明[1] 

机构地区：[1]中国林业科学研究院热带林业实验中心,凭祥532600 [2]中国林业科学研究院热带林业研究所,广州510520

出　　处：《林业科学》2017年第3期76-83,共8页Scientia Silvae Sinicae

基　　金：中国林业科学研究院基本科研业务费专项资金项目"珍贵树种轻基质工厂化育苗技术研究与示范"(CAFYBB2012048)

摘　　要：【目的】通过对不同容器规格和基质配方条件下1,2年生红锥幼苗生长及造林效果对比分析,为2种年龄红锥苗木培育筛选出适宜的容器规格和基质配方,亦为其造林适宜苗龄的选择提供科学依据。【方法】采用2种容器规格和11种基质配方分别培育1,2年生红锥苗,测定红锥苗期的生长动态,并开展造林试验,调查其早期生长表现。运用方差分析、多重比较等方法,探明不同容器规格和基质配方条件下红锥幼苗生长差异,应用相关分析揭示红锥苗期生长与造林效果的相关性。【结果】容器规格和基质配方显著影响1,2年生红锥苗的苗高、地径、根生物量和总生物量(P<0.05),且两者交互作用对1,2年生幼苗的苗高、地径、根生物量以及2年生幼苗的总生物量具有显著影响。1年生红锥苗造林当年,各基质配方的造林保存率差异不显著(P>0.05),而幼树高差异显著;造林第2年,各基质配方的造林保存率和幼树高差异不显著,而地径差异显著。2年生红锥苗造林当年,各容器规格的造林保存率、幼树高和地径均差异显著,各基质配方的造林保存率差异不显著,而幼树高和地径差异显著。容器规格和基质配方的交互作用对2年生红锥苗造林当年幼树高具有显著影响。1年生红锥苗造林,当年幼树高、第2年幼树高和地径与造林前苗高、地径、根生物量和总生物量呈显著正相关,且当年和第2年幼树高与造林前幼苗根冠比呈显著负相关。2年生红锥苗造林,容器规格1(8 cm×12 cm,直径×高)当年幼树高、地径与造林前苗高和总生物量呈显著正相关,容器规格2(12 cm×15 cm,直径×高)当年幼树高与造林前苗高、地径、根生物量和总生物量呈显著正相关,而当年幼树地径与造林前总生物量呈显著正相关,表明红锥苗木质量显著影响其前两年造林效果。【结论】容器规格与基质配方对1,2年生红锥苗木生长存在[ Objective] The growth of one- and two-year-old Castanopsis hystrix seedlings raised with different media and different sizes of containers were compared, and their out-planted performances were also evaluated, aiming to determine the optimum container size and medium, as well as to provide guidance to selection of suitable seedling age for planting. [ Method] C. hystrix seedlings were raised in containers of two sizes with eleven media. Growth dynamics and early field performance were investigated, respectively. Variance analysis with Duncan＇ s multiple comparison was conducted to test differences in seedling growth and the early field performance among treatments, and correlation analysis was used to determine the relationship between seedling growth and early filed performance. [ Result] Container size and growing medium significantly influenced height, root collar diameter, root and total biomass of one- and two-year-old seedlings. Moreover, their interaction significantly affected height, root collar diameter and root biomass of one- and two- year-old seedlings as well as total biomass of two-year-old seedlings. For one-year-old seedlings, there was significant difference in height but not in survival rate among media in the first year after out-planting. A significant difference was found in root collar diameter but not in height and survival rate in the second year after out-planting. For two-year-old seedlings, there were profound effects of container size and medium on height and root collar diameter in the first year after out-planting. Moreover, the interaction of container size and medium influenced obviously the height of two-year-old seedlings in the first year after planting. The height in the first year, and height and root collar diameter in the second year after planting showed positive relationships with the height, root collar diameter and total biomass of one-year-old seedlings in the nursery, respectively. However, the height in the first and second year after planting were negatively cor

关 键 词：红锥 苗龄 苗木质量 生长动态 造林效果 

分 类 号：S723.133[农业科学—林木遗传育种]