红花木莲容器育苗基质的筛选

摘要

Four light media formulations of pine bark and perlite were tested in container nursery of M.insignis seedlings to screen the optimum nursery substrate for large-scale production of quality M.insignis seedlings.The results showed that there are significant differences in height,>5 cm lateral root number,total root system length,root width,height-diameter ratio,short-root ratio,quality index between different light media formulations.The principal component analysis indicates that the nursery effect of No.2 formulation (pine barn ∶ perlite =9∶1 )is the best and the nursery effect of No.4 formulation (pine barn ∶ perlite =7∶3 )is the worst.In conclusion,No.2 formulation (pine barn ∶perlite =9∶1)can be used in large-scale production of quality Manglietia insignis seedlings.%为筛选适宜的育苗基质，为规模化生产红花木莲优质高产苗木提供技术参考，选用松树皮和珍珠岩为基质混合配制成4种轻基质配方，比较不同配方对红花木莲容器苗生长的影响。结果表明：不同轻基质配方间容器苗的苗高、＞5 cm的Ⅰ级侧根数、根系总长、根幅、高径比、茎根比、质量指数均达到显著差异；主成分分析表明，2号轻基质配方（树皮∶珍珠岩＝9∶1）育苗效果最好，4号轻基质配方（树皮∶珍珠岩＝7∶3）育苗效果最差。结论：在红花木莲容器育苗生产上宜选用2号轻基质配方。