关键词：
美丽箬竹;菲黄竹;基质配比;容器育苗;苗木生长
摘 要：
[目的]探索不同基质配比对美丽箬竹、菲黄竹鞭段繁育容器苗生长的影响,为地被竹鞭段容器育苗的轻基质筛选提供参考。[方法]以林地覆盖后的废砻糠、泥炭和黄心土为基质材料,进行3种体积比(A-3:5:2、B-3:4:3、C-10:0:0)的基质配比试验,测定分析美丽箬竹、菲黄竹鞭段繁育容器苗的生长和生物量分配指标。[结果]表明:基质配比处理对美丽箬竹、菲黄竹的侧芽萌发和成活率没有明显的影响,对立竹数量、苗高、和地径等有明显的影响,表现为美丽箬竹处理A和处理B的苗高、立竹数量高于处理C,但地径的差异不大,而菲黄竹容器苗生长对基质配比的反应更敏感,菲黄竹处理A的苗高显著高于处理B和处理C,立竹数量则相反,处理A和处理B的地径显著高于处理C。基质配比处理显著影响美丽箬竹、菲黄竹容器苗的总生物量,同时,基质配比处理对美丽箬竹容器苗叶、鞭、地上生物量和地下生物量分配比例有明显影响,对秆、根生物量分配比例影响不大,对菲黄竹容器苗的器官生物量分配比例均影响不明显,体现出种间差异。主成分分析表明,处理B育苗效果最好,其次为处理A,处理C育苗效果较差。[结论]基质配比对美丽箬竹、菲黄竹的生长、生物量及其分配均有明显的影响,两竹种均以处理A和处理B的容器苗生长较好、生物量较高。地被竹鞭段容器育苗宜选择处理A或处理B的轻基质配比。
译 名：
Effect of Substrate Ratio on Ground Growth of Bamboo Rhizome Containerized Plantlets
作 者：
GU Rui;ZHANG Chao;CHEN Shuang-lin;GUO Zi-wu;Research Institute of Subtropical Forestry, Chinese Academy of Forestry;
关键词：
Indocalamus decorus;;Sasa auricoma;;substrate ratio;;containerized plantlet;;plantlet growth
摘 要：
[Objective] To study the effect of substrate ratio on the growth of containerized plantlets bred by Indocalamus decorus and Sasa auricoma rhizome segments, and provide a reference for the screening of light-weight substrates for bamboo rhizome. [Method] Three kinds of substrates volume ratio(A-3:5:2, B-3:4:3, C-10:0:0) were tested with waste chaff covered by forest land,peat and yellow subsoil as substrate materials. The growth status indicators and organ biomass allocation of the containerized plantlets of I. decorus and S. auricoma rhizome segments were measured. [Result] The results showed that the substrate ratio treatment had no significant effect on the lateral bud germination and survival rate of I. decorus and S. auricoma. But it had significant effect on the number of standing bamboos, height and ground diameter, which showed that the plantlet height and the number of standing bamboos of I. decorus with treatment A and B were higher than that of treatment C, but the difference in ground diameter was not significant, and the growth of the containerized S. auricoma plantlet was more sensitive to the reaction of the substrate ratio. The plantlet height of treatment A was significantly higher than that of treatment B and C, while the number of standing bamboo was the opposite. The diameter of treatment A and B was significantly higher than that of treatment C. Substrate ratio treatment significantly affected the total biomass of I. decorus and S. auricoma containerized plantlet. At the same time, the substrate ratio treatment had a significant effect on the distribution ratio of the leaves, rhizome, aboveground and underground biomass of I. decorus containerized plantlets, and had little effect on the proportion of stalk and root biomass allocation. However, the distribution of organ biomass in S. auricoma containerized plantlet was not significant, reflecting the inter-species differences. Principal component analysis showed that treatment B had the best cultivation effect, followed by treatment A, and treatment C was the worst. [Conclusion]The substrate ratio has obvious effects on the growth, biomass and distribution of I. decorus and S. auricoma. The containerized plants under the two treatments, A and B, have better growth and higher biomass. So it is preferable to select the light-weight substrate ratio of the treatment A or the treatment B to cultivate containerized plantlets with bamboo rhizome.
