不同种源毛竹实生苗造林效果

Afforestation Effect of Phyllostachys edulis Seedlings from Different Provenances

以桂北8个不同种源的毛竹(Phyllostachys edulis)实生苗开展造林效果研究,结果表明:灵川县的2个种源实生苗的萌发数量最多,地径最大,种植2年后不同种源的毛竹实生苗地径差异极显著;灵川B区实生苗种植2年后株高最大,且不同种源间的株高差异极显著。综合以上各指标,灵川种源区毛竹实生苗造林效果最明显。依据株高进行聚类分析,可以明显将8个种源分成4类。

The study on afforestation effect of Phyllostachys edulis seedlings from 8 different provenances in northern Guangxi was carried out. The result showed that two seedling provenances from Lingchuan had the most germination number and the biggest ground diameter. The ground diameter difference of Phyllostachys edulis seedlings from different provenances was extremely significant two years later after planting. Seedlings from Lingchuan B area had the highest plant height two years later after planting. The difference of plant height among different provenances was extremely significant. According to all inde- xes, the afforestation effect of Phyllostachys edulis seedlings from Lingchuan provenances was the most ob- vious. Eight provenances were divided into 4 classes according to the clustering analysis of plant height.