六个油茶品种幼林生长比较

选择赣无、长林与华硕等6个南方主要油茶品种进行引种适应性观测。结果表明:不同油茶品种的生长量差异较大;6个品种中,华硕和赣70生长较好,其树高年生长量分别达31 cm和27.8 cm,地径年生长量分别达2.56 cm和2.16 cm;赣无1、赣84-3、长林53和长林166生长量较小。6个品种种植后第1年树高生长量均高于第2年的,不同品种种植后第1年和第2年的生长量均有较大差异。油茶幼林期树高和地径的生长主要集中在春季和夏季,秋季生长基本停止;4月中下旬与6月上旬各有1次生长高峰,7月中旬以后生长十分缓慢,8月生长几乎停止,直到9月上旬以后有少量生长。本研究可为油茶品种选择与种植经营工作提供参考。

Comparison of young forest growth of six varieties of Camellia oleifera

The six south main Camellia oleifera varieties was carried out for adaptability study.The results showed that:There was obvious differences in the growth increments of the varieties of C.oleifera.Among the 6 varieties,the growth of Huashuo and Gan 70 were better as the annual growth of plant height were 3 1 cm and 27.8 cm respectively,and the an-nual growth of the ground diameter were 2.56 cm and 2.16 cm respectively.The growth of Ganwu 1,Gan 84-3,Chang-lin 53,and Changlin 166 growth were small.The first two years of sapling after planting showed that the first year of height increment was higher than it of the second year,besides,there were obvious differences in the growth increments in this period for different varieties of C.oleifera. The growth of plant height and ground diameter mainly occured in the spring and summer,the growth has ground to a halt in autumn.There was a growth peak in mid to late April and early June,re-spectively,the growth is slow after the middle of July,and the growth almost stopped in August,and a small amount of growth in early September.This study could provide reference for species selection and planting management of C.oleifera.