文献类型：期刊文献

中文题名：云南6种竹子种子萌发和贮藏特性初步研究

英文题名：Seed Germination and Storage of Six Woody Bamboo Species in Yunnan,China

作者：杨汉奇[1] 梁宁[1] 李春芳[2] 李体初[1] 孙茂盛[3]

第一作者：杨汉奇

机构：[1]中国林业科学研究院资源昆虫研究所;[2]中国科学院昆明植物研究所;[3]西南林业大学

年份：2013

卷号：26

期号：6

起止页码：710-714

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：云南省应用基础研究基金(2010CD141);国家自然科学基金(31270662;31070593);中国林科院资源昆虫研究所基本科研业务费专项资金(riricaf2012005M)

语种：中文

中文关键词：竹子;颖果;种子;萌发;贮藏

外文关键词：bamboo ; caryopsis ; seed ; germination ; storage

分类号：S795

摘要：对马来甜龙竹Dendrocalamus asper(J.A.et J.H.Schult)Backer ex Heyne、黄竹D.membranaceus Munro、巨龙竹D.sinicus Chia et J.L.Sun、"大白竹"Schizostachyum sp.、灰香竹Chimonocalamus pallens Hsueh et Yi和筇竹Qiongzhuea tumidissinosa Hsueh et Yi等6个坚果状颖果、典型颖果和浆果状颖果3类竹子种子进行了萌发和贮藏试验。6个竹种种子均未观测到明显的休眠期,新鲜的成熟种子播种后5 15 d内发芽,约15 d内完成整个发芽期。场圃发芽率以坚果状的马来甜龙竹(发芽率84.0%)、黄竹(81.0%)表现较好;典型颖果类中,巨龙竹(43.3%)和大白竹(73.5%)种子发芽率差异明显;而浆果状的筇竹的发芽率最低(25.0%)。MS+BA0.5+NAA0.2的培养基适合于竹类种子萌发。室温(20 25℃)层积的发芽率明显高于4℃层积的发芽率。浸种10 d后黄竹、马来甜龙竹、大白竹、筇竹的种子的发芽率降至0 5.5%。在4℃冷藏或室温阴干贮藏条件下,三类竹子种子发芽率随着时间的增长而急剧下降,贮藏3个月后,发芽率下降到0 4.0%;种子拌土对延长其种子寿命有一定促进作用。
The germination and storage characteristics of bamboo seed （caryopsis） were tested with six bamboo spe- cies including Dendrocalamus asper （JA et JH Schuh） Backer ex Heyne （nut-like caryopsis）, D. sinicus Chia et JL Sun （typical caryopsis） , D. membranaceus Munro （nut-like caryopsis） , Schizostachyum sp. （typical caryopsis）, Qiongzhuea turnidinoda Hsueh et Yi （berry-like caryopsis）, and Chimonocalamus pallens Hsueh et Yi （typical car- yopsis）. No dormancy was observed during the process of germination of these seeds. The fresh and ripe seeds be- gin to germinate in 5 ~ 15 days after sowing, and finish within 15 days. The results of test showed that the field ger- mination rates were： 84.0% （D. asper） , 81.0% （D. membranaceus） , 43.3% （D. sinicus） , 73.5% （S. sp. ） and 25.0% （ Q. tumidinoda）. The medium, MS ＋ BA 0.5 ＋ NAA 0.2, was the best for the bamboo seed germi- nation. The germination rate of seed stratified at 20℃-- 25℃ was significantly higher than that at 4℃. Sowed after 10 days＇ soaking in water, the seed germination rates of D. asper, D. membranaceus, S. sp. and Q. tumidinoda dropped to 0 - 5.5%. When stored at 4℃ or at 20℃ ~ --25℃ with humidity of 10% - 15%, the seed germinationrates of these six bamboos decreased gradually and dropped to 0 - 4.0% after 90 days. It could increase seed lifes- pan of Ch. pallens when stored in soil at 4℃.