版纳省藤实生白化苗与正常苗的比较研究  

Comparison between Albino and Normal Seedlings of Calamus nambarensis Becc.var.xishuangbanensis

作　　者：李荣生[1] 尹光天[1] 许煌灿[1] 杨锦昌[1] 杨华[1] 陈和明[2] 

机构地区：[1]中国林业科学研究院热带林业研究所,广东广州510520 [2]福建农林大学林学院,福建福州350002

出　　处：《林业科学研究》2004年第6期819-823,共5页Forest Research

基　　金：国家十五攻关课题"棕榈藤种质资源培育及利用技术"(2001BA506b04);广东省自然科学基金资助项目"棕榈藤种间水分利用效率和抗旱能力的比较"(021581)资助

摘　　要：This paper dealed with the differences between albino and normal seedlings of Calamus nambarensis var.xishuangbanensis in terms of growth and photosynthesis.Thirteen families among 22 families were found to have one to three albinos,the percent of which varying from 0.4 to 2.2 percents,while the percent of albinos among all 22 families was about 0.7 percent.The number of albino leaves and the length of longest leaves were 1.9±0.3 and 22.32±3.49 cm respectively, which were less than that of 2.0±0.0 and 26.09±3.26 cm of normal seedlings,accounting for 95% and 85% of normal seedlings.The albinos hadn’t chlorophyll a,but some chlorophyll b.The total content of chlorophyll was 0.02 mg·g-1FW, much less than that of 8.15 mg·g-1FW of normal seedlings, accounting for 0.2 percent.Whether photosynthesis active radiation（PAR） was 800 μmol·m-2·s-1 or （1 600） μmol·m-2·s-1,the photosynthetic rate of albinos was less than that of normal seedlings,accounting for about 20 percents.The data of net photosynthetic rate of albino evaluatde by the authors were alsoThis paper dealed with the differences between albino and normal seedlings of Calamus nambarensis var.xishuangbanensis in terms of growth and photosynthesis.Thirteen families among 22 families were found to have one to three albinos,the percent of which varying from 0.4 to 2.2 percents,while the percent of albinos among all 22 families was about 0.7 percent.The number of albino leaves and the length of longest leaves were 1.9±0.3 and 22.32±3.49 cm respectively, which were less than that of 2.0±0.0 and 26.09±3.26 cm of normal seedlings,accounting for 95% and 85% of normal seedlings.The albinos hadn't chlorophyll a,but some chlorophyll b.The total content of chlorophyll was 0.02 mg·g^(-1)FW, much less than that of 8.15 mg·g^(-1)FW of normal seedlings, accounting for 0.2 percent.Whether photosynthesis active radiation(PAR) was 800 μmol·m^(-2)·s^(-1) or (1 600) μmol·m^(-2)·s^(-1),the photosynthetic rate of albinos was less than that of normal seedlings,accounting for about 20 percents.The data of net photosynthetic rate of albino evaluatde by the authors were also analyzed

关 键 词：版纳省藤 实生苗 白化苗 正常苗 叶绿素 光合速率 

分 类 号：Q949.715[生物学—植物学] S792.91[农业科学—林木遗传育种]