首页 | 本学科首页   官方微博 | 高级检索  
   检索      

独花兰野生种群研究——开花与营养体状态的关系
引用本文:熊治廷,吴剑,李奕,葛颂,赵子恩,桂先群,程增林,黄遵义.独花兰野生种群研究——开花与营养体状态的关系[J].植物学通报,2002,19(1):87-91,86.
作者姓名:熊治廷  吴剑  李奕  葛颂  赵子恩  桂先群  程增林  黄遵义
作者单位:1. 武汉大学环境科学系,武汉,430072
2. 中国科学院植物研究所系统与进化植物学开放研究实验室,北京,100093
3. 中国科学院武汉植物研究所,武汉,430074
4. 安徽省天堂寨自然保护区,金寨,237343
基金项目:国家自然科学基金重大项目 ( 3989336 0_2_0 7),国家“973”项目 (G2 0 0 0 0 4 6 80 5 )资助
摘    要:对安徽省天堂寨自然保护区独花兰野生种群的花果期节律和营养体状态研究表明 ,开花植株占观察样本的 3 7 5 %,个体是否开花与假鳞茎数目、地下茎总体积和叶面积呈极显著相关关系。绝大多数开花个体具有 3个假鳞茎且其总体积通常达 8cm3,叶面积达 3 3cm2 。个体较大的植株开花持续期较长。花葶在花果期具有不同的生长时相 :开花期中止生长 ,幼果期呈逻辑斯谛型生长。面对日益增长的人类采掘风险 ,独花兰开花与大型植株的关联可能是其生活史中影响种群生存的脆弱点之一。

关 键 词:独花兰  开花  营养体状态  发育节律

Relationship between Flowering and Vegetative Status of Changnienia amoena Chien: A Field Population Study
XIONG Zhi_Ting,WU Jian,LI Yi.Relationship between Flowering and Vegetative Status of Changnienia amoena Chien: A Field Population Study[J].Chinese Bulletin of Botany,2002,19(1):87-91,86.
Authors:XIONG Zhi_Ting  WU Jian  LI Yi
Abstract:The vegetative status and the flowering and fruiting developmental rhythm of Changnienia amoena were investigated in Tiantangzhai population of Anhui province during the flowering and fruiting period. It did not flower until the plant has developed three pseudo_bulbs with a total volume of more than 8 cm 3 per shoot, and the leaves had a total area of more than 33 cm 2. Larger plants displayed a longer flowering duration. Scapes showed different growth phases during the flowering and fruiting period: discontinuing growth during flowering, and showing a logistic type of growth during young fruit development. The close correlation of flowering with large plants might be a vulnerable point in the life cycle of Changnienia amoena while facing increasing exploitation by human beings, which could threaten the survival of the species.
Keywords:Changnienia amoena  Flowering  Vegetative status  Developmental rhythm  
本文献已被 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号