首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
海外撷英栏目开通,欢迎投稿

热带亚热带植物学报网络开通

访问总次数
14385816
今日访问
669
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1759次   下载 2040 本文二维码信息
码上扫一扫!
分享到: 微信 更多
吊丝单竹笋期叶片特性研究
郑郁善, 陈礼光
作者单位
郑郁善, 陈礼光  
摘要:  对3种不同年龄的吊丝单竹株在不同发笋时期、不同竹冠部位的叶片比叶重、光合、呼吸性状及N、P、K含量等进行测定,结果表明:吊丝单竹在不同发笋时期、不同竹冠部位各项指标均有较大差异。比叶重发笋盛期高于初期和末期,随着竹株年龄增大而减小,随着竹冠的升高而增大;净光合速率盛期高于初期,光呼吸速率和暗呼吸速率则初期高于盛期,并且不同竹龄、不同竹冠部位之间均表现出较大的差异;N、P、K含量由发笋初期至盛期逐渐减小,N含量以1 a>2 a>3 a,以竹冠中部最高,P、K含量则随着竹冠的升高而减小,随着竹株年龄的增大而增大。这为经营管理吊丝单竹林提供科学依据。
关键词:  吊丝单竹  笋期  竹叶  生理特性
DOI:10.3969/j.issn.1005-3395.2004.5.010
分类号:
基金项目:
Some Physiological Characteristics of the Leaves of Dendrocalamopsis vario-striata during Shooting
ZHENG Yu-shan, CHEN Li-guang
Abstract:  Specific leaf weight, photosynthetic rate, photorespiration rate, as well as N, P, K contents were measured in the leaves of Dendrocalamopsis vario-striata grown in Chishan Forest Farm in Fujian Province during shoot development. Results indicated that specific leaf weight (SLW) was higher at shoot abundant stage (in mid July) than that at early stage (on 12, June) and late stage (on 10, September). SLW decreased as the bamboo age increased, and increased with the ascending levels of leaf location on bamboo stems. Net photosyn thetic rate at shoot abundant stage was higher than that at early stage.whereas photorespiration rate and dark respiration rate were higher at early stage.The contents of N,P and K in bamboo leaves decreased gradually during shooting period.N content in leaves was in the order of 1-year-old>2-year-old>3-year-old bamboo, and being the highest in leaves on mid part of bamboo stems, whereas the contents of P and K decreased with the ascending levels of leaves on stems,an d increased with the increase of the bamboo age.The results would provide guidance for scientific management of D.vario-striata plan ting.
Key words:  Dendrocalamopsis vario-striata  Shooting period  Bamboo leaves  Physiological characteristics

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真:86 (0)20-3725 2642 E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2