厚壁毛竹光合作用对环境因子响应的季节变化  

Seasonal Photosynthetic Variance of Phyllostachys edulis 'Pachyloen' Response to Environmental Factors

作　　者：施建敏[1] 杨光耀[1] 杨清培[1] 李健[1] 郭起荣[1] 

机构地区：[1]江西农业大学江西省竹子种质资源与利用重点实验室,江西南昌330045

出　　处：《林业科学研究》2009年第6期872-877,共6页Forest Research

基　　金：国家自然科学基金(30760204)

摘　　要：The seasonal photosynthetic response of Phyllostachys edulis ’Pachyloen’ to light intensity,CO2 concentration,temperature and humidity were measured with Li-6400P.The main study results were as follows:The seasonal photosynthetic variation tendency of Ph.edulis ’Pachyloen’ to light intensity was summer>autumn>winter>spring for Pmax,spring>autumn>winter>summer for LCP,autumn>summer>winter>spring for LSP,and summer> autumn>winter>spring for AQY.The seasonal photosynthetic variation tendency of Ph.edulis ’Pachyloen’ to CO2 concentration was spring>autumn>summer> winter for LCP and CCP,and summer>autumn> winter>spring for CE.The optimal temperature for photosynthesis of Ph.edulis ’Pachyloen’ ranged from 20 to 30 ℃,equivalent in spring and autumn,higher in summer and lowest in winter.The optimal humidity for photosynthesis of Ph.edulis ’Pachyloen’ ranged from 40% to 65%,its seasonal variation tendency was autumn>summer>winter>spring.As a cultivar of Ph.edulis,the characteristics of photosynthetic responses of Ph.edulis ’Pachyloen’ to environmental factors were similar with Ph.edulis.It indicated their close phylogenetic relationships.The seasonal photosynthetic response of Phyllostachys edulis ‘Pachyloen＇ to light intensity, CO2 concentration; temperature and humidity were measured with Li-6400P. The main study results were as follows：Theseasonal photosynthetic variation tendency of Ph. edulis ‘ Pachyloen＇ to light intensity was summer 〉 autumn 〉 winter 〉 spring for Pmax, spring 〉 autumn 〉 winter 〉 summer for LCP, autumn 〉 summer 〉 winter 〉 spring for LSP, and summer 〉 autumn 〉 winter 〉 spring for AQY. The seasonal photosynthetic variation tendency of Ph. edulis ‘ Pachyloen＇ to CO2 concentration was spring 〉 autumn 〉 summer 〉 winter for LCP and CCP, and summer 〉 autumn 〉 winter 〉 spring for CE. The optimal temperature for photosynthesis of Ph. edulis ‘ Pachyloen＇ ranged from 20 to 30 ℃, equivalent in spring and autumn, higher in summer and lowest in winter. The optimal humidity forphotosynthesis of Ph. edulis ‘ Pachyloen＇ ranged from 40% to 65%, its seasonal variation tendency was autumn 〉 summer 〉 winter 〉 spring. As a cultivar of Ph. edulis, the characteristics of photosynthetic responses of Ph. edulis ‘Pachyloen＇ to environmental factors were similar with Ph. edulis. It indicated their close phylogeneticrelationships.

关 键 词：厚壁毛竹 光合作用 环境因子 季节变化 

分 类 号：S795[农业科学—林木遗传育种]