单叶省藤组培苗造林初步研究

单叶省藤(CalamussimplicifoliusC F Wei)是我国华南地区的优质商品藤种,其藤茎质量好,为编制家具的优质原料1～3]。70年代以来的栽培试验表明,它不仅适应性强,而且速生,可广泛栽培于海南、广东、广西、云南和福建等省区,为我国棕榈藤栽培的首选藤种1]。但野生资源由于长期过度采伐而枯竭,少量试验林未结实或结实甚少,推广栽培因种质资源奇缺而受到严重制约2]。通过组织培养等生物技术工厂化快繁单叶省藤,是解决扩大栽培种苗问题的最好途径。因而开展了单叶省藤组培和造林技术研究,现将组培苗造林试验结果及其特殊性予以报道。1　…

Afforestation of Calamus simplicifolius by Tube-seedlings

This paper deals with tube seedling afforestation of Calamus simplicifolius. The survival rate of tube seedlings planted in arboretum and Duadanga grandiflora forest is not lower than that of normal seedlings. That indicates the afforestation requirements of tube seedlings, such as site selection, site preparation, shading trees and planting, can be similar to those of normal seedlings. The survival rate of tube seedlings planted in arboretum, teak forest, Michelia macclurei forest, Duadanga grandiflora forest and natural secondary forest can be higher than ninety percent. The afforestation results of clump seedlings show that the survival rate of shoots in the clump is relative to their initial height before afforestation. The highest shoot in clumps has the highest survival rate. In clump seedlings, individual shoots with a height lower than 20 cm have very low afforestation survival rate. There is eminent difference among the height growth of different tissue culture families. This indicates the selection of elite family or plus plant can enhance the production of rattan forests. Experiment results also show that plants developed from tube seedlings have stronger suckering ability and can germinate suckers one or two years earlier than those developed from normal seedlings. This phenomenon needs more research and more attention should be paid on the remnant impact of plant growth regulators applied in proliferation culture.