紫竹无性系种群叶绿素含量研究  

A Study on the Chlorophyll Content of Phyllostachys nigra Clone Population

作　　者：郑进烜[1,2] 卢珍红[3] 赵金发[1] 刘锋 

机构地区：[1]云南省林业调查规划院,云南昆明650051 [2]云南省野生动植物资源监测中心,云南昆明650051 [3]云南省农业科学院花卉研究所,云南昆明650205 [4]富源县林业局,云南富源650205

出　　处：《竹子研究汇刊》2015年第2期47-50,55,共5页Journal of Bamboo Research

摘　　要：采用SPAD-502叶绿素测定仪测定不同的年龄结构、海拔、冠层高度、坡向和坡位的紫竹叶片叶绿素含量,结果表明:紫竹分株叶绿素含量在不同年龄结构表现为3年生】4年生】2年生】5年生】6年生】1年生,呈现随着年龄增大出现'低—高—低'趋势;在不同海拔表现出反'U'形现象,叶绿素含量高的集中在海拔1 750~1 850 m区间,且呈现平稳增长;在不同冠层高度表现为'中层】下层】上层';在不同坡向表现为'半阴】半阳】阴坡】阳坡';在不同坡位表现为'中坡】下坡】上坡'。Using the SPAD-502 chlorophyll meter,the chlorophyll contents of Phyllostachys nigra leaves at different age,altitude,canopy height,aspect and slope position were measured.The results showed that the chlorophyll content of Ph. nigra leaves varied with ramet age,i. e.,3 a > 4 a > 2 a > 5 a > 6 a > 1 a,appearing a pattern of 'low-high-low'with the increase of ramet age. The chlorophyll content of Ph. nigra leaves exhibited an inverted'U'shaped curve with the increase of altitudes,peaking at the altitude of 1750-1850 m. It decreased in the turn of 'middle > lower > upper'canopy height,'half shady slope > half sunny slope > shady slope> sunny slope',and 'mid-slope > lower-slope > upper-slope'.

关 键 词：叶绿素含量 无性系种群 紫竹 

分 类 号：S795[农业科学—林木遗传育种]