江西农业大学学报Issue(1)：109-114,6.
不同光照强度下楠木属3个树种苗木的形态响应与适应
Morphological Responses and Adaptation of Seedlings of Three Tree Species of Phoebe Nees to Different Light Regimes
摘要
Abstract
The growth, biomass accumulation and allocation of the seedlings of Phoebe bournei, Phoebe chekiangensis,and Phoebe sheareri belonging to Phoebe Nees in response to different light regimes ( 100%of full sunlight,L100;50%of full sunlight,L50;20%of full sunlight L20) were studied.The results of two years’ experiment showed that:(1) All the three species seedlings’height and diameter were the largest under L 50. The leaf width ,average area ,specific leaf area showed an increasing trend with the decrease light intensity ,and there were significant or very significant differences among these indexes .( 2) The total biomass showed a con-sistent trend under different light treatments;under moderate shade conditions ( L50 ), the total biomass in-creased with the increase of light intensity ,but decreased when the light intensity was beyond a threshold .(3) The stem mass ratio and leaf mass ratio decreased with the increase of light intensity ,the mass ratio of the root increased with light intensity .The seedling quality index had the highest value under 50%of light treatment and the differences were significant or extremely significant .关键词
闽楠/楠木属/光照环境/生物量分配/形态响应Key words
Phoebe bournei ( hemsl.) Yang/Phoebe/light enviroment/biomass allocation/morphological response分类
农业科技引用本文复制引用
葛永金,刘跃钧,高伟,徐必,高月庭,倪荣新..不同光照强度下楠木属3个树种苗木的形态响应与适应[J].江西农业大学学报,2014,(1):109-114,6.基金项目
浙江省重点科技创新团队资助项目 （）
