| 摘要: |
| 以杉木（Cunninghamia lanceolate）无性系组培苗为材料，选用4 种育苗基质，采用单形重心
混料试验设计，探究不同轻基质种类及配比对苗木质量的影响。结果表明，基质种类和配比方式对杉木
无性系组培苗保存率和苗木生长有较大影响，基质中泥炭土所占的比例应控制在20% 左右，并配合珍珠
岩或蛭石一起使用，椰糠可不加或少加。总根长、总根表面积、总根体积、根冠比、平均根直径等根系
形态参数是评价杉木无性系轻基质容器苗质量的重要指标。利用隶属函数值对不同配方的育苗效果进行
综合评价，筛选出泥炭土20%+ 珍珠岩40%+ 蛭石40% 的9 号配方为最佳组合，移栽6 个月后苗木保存
率为91.70%，苗木高/ 径生长明显，根系发达，苗木综合质量明显优于黄心土容器苗。 |
| 关键词: 杉木 无性系 组培苗 轻基质 |
| DOI： |
| 投稿时间：2018-09-14修订日期：2018-11-08 |
| 基金项目:广东省林业科技创新项目“杉木组培苗采穗圃营建与高效促萌技术研究”(2018KJCX042)；国家重点研发计划项目课题“杉木大径材高效培育技术研究”(2016YFD0600301)。第一作者韦如萍(1978-),女,研究员,主要从事森林培育方面的研究工作,E-mail: wrpgx@163.com。通信作者胡德活(1962-),男,研究员,主要从事林木育种方面的研究工作,E-mail: hudehuo@163.com。 |
|
| Effects of Light Media on Conal Seedlings of Cunninghamia lanceolate |
| Wei Ruping,hudehuo@163.com,liuxing,yanshu,zhenghuiquan,wangrunhui,huangdeji,guoliye,hexuezhi |
| (Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization;Forest Pest Control and Quarantine Station of Lianshan Zhuang and Yao Autonomous County) |
| Abstract: |
| The trial was designed by simplex centroid mixture of four media to find out different media’s
effects on transplanting Cunninghamia lanceolate seedlings, propagated by tissue culture. After 6 months of
transplanting, some indexes including survival rate, seedling height, ground diameter and root morphology
index were observed. The results showed that the composition and proportion of light media had significant
effects on seedling survival rate and quality. The proportion of peat soil in media should be around 20%, and it
should be used together with pearlite or vermiculite. On the contrary, coconut coir should not be added or added
as little as possible. Root morphological parameters, including total root length, total root surface area, total
root volume, root-shoot ratio and average of root diameter, are important indices for evaluating the quality of
container seedlings of Chinese fir clones with light matrix. The quality of seedling was comprehensively evaluated
by subordinate function values. And then, No. 9 media, which contained 20% peat soil, 40% perlite and 40%
vermiculite, was selected as the best media. The seedlings, cultivated in NO.9 media, had a 91.70% survival rate,
higher height, larger diameter and more developed roots than that cultivated in soil. |
| Key words: Cunninghamia lanceolate clone tissue culture seedling light media |
