云南肉豆蔻育苗技术试验初报

Preliminary Study on Seedling Experiment of Myristica yunnanensis

在云南省林业科学院普文热带林业研究所苗圃内开展云南肉豆蔻育苗技术试验,观测一年内苗高和地径生长量,分析小苗的月生长表现。结果表明,云南肉豆蔻小苗苗高和地径生长表现均较好。苗高生长速生期在每年的6—10月,10月以后苗木生长较缓慢;地径生长速生期在每年的4—6月,7月以后生长较缓慢。平均苗高增长量从12月至翌年8月是递增关系,增长最快的时期是7—8月,9月至翌年3月则是递减关系;平均地径生长量1—5月是递增关系,增长最快的时期是4—5月,6—12月则是递减关系。

The experiment of Myristica yunnanensis seedling technology was carried out in the seedling nursery of Puwen Institute of Tropical Forestry, Yunnan Academy of Forestry to study the growth of seed- ling height and ground diameter in one year and analyze the monthly growth performance of seedling. The results showed that the seedling height and ground diameter of Myristica yunnanensis were good. The seedling height grew rapidly from June to October but slowly after October every year, the ground diame- ter grew rapidly from April to June but slowly after July every year. The growth of average seedling height was increasing from December to August, which was the fastest from July to August, and was decreasing from September to March. The growth of the average ground diameter was increasing from January to May, which was the fastest from April to May, and was decreasing from June to December.