3年生灰木莲不同种源、家系子代测定试验初报

The Growth Effect of 3-Year-Old Manglietia conifera Different Provenances and Families in South Fujian

为了比较不同种源家系的早期生长差异,以灰木莲3个种源45个家系为材料进行造林试验,连续观测3年林木生长量(树高和胸径)、保存率,并对不同种源和家系的林木生长和保存率进行多重比较分析。结果表明:3 a生灰木莲树高平均为3.5 m,胸径平均为5.50 cm,保存率可达80%。种源间的树高和保存率方面差异不显著,胸径生长有着显著差异,家系间的树高、胸径及保存率有着显著差异。从种源水平来看,种源3的整体表现较好,从家系水平来看,家系18号、14号、17号、21号、25号、39号、43号、44号生长表现较好。

In order to compare different provenances and families growth effects at early stage, 3 Manglietia conifera provenances including 45 families were taken as materials for afforestation test. Tree growth （height and diameter at breast height （DBH）） as well as survival rate were observed for 3 years, and the multiple comparison analysis of the growth and survival rates of different provenances and families were carried out. The results showed the average tree height of 3yearold was about 3.5 m, the DBH was about 5.50 cm, and the average of survival rate was about 80%. There was no significant difference between provenances in tree height and survival rate. However, the difference in DBH was significant between provenances. There was significant difference between families in tree height, DBH and survival rate. Provenance No.3 grew better than other povenances, family such as No.18, No.14, No.17, No.21, No.25, No.39, No.43, and No.44 grew better than others.