[1]张迎颖,吴富勤,张志勇,等.凤眼莲有性繁殖与种子结构及其活力研究[J].南京农业大学学报,2012,35(1):135-138.[doi:10.7685/j.issn.1000-2030.2012.01.024]
 ZHANG Ying-ying,WU Fu-qin,ZHANG Zhi-yong,et al.Research on sexual reproduction,seed structure and its vigor of Eichhornia crassipes[J].Journal of Nanjing Agricultural University,2012,35(1):135-138.[doi:10.7685/j.issn.1000-2030.2012.01.024]
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凤眼莲有性繁殖与种子结构及其活力研究()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
35卷
期数:
2012年1期
页码:
135-138
栏目:
出版日期:
2012-01-10

文章信息/Info

Title:
Research on sexual reproduction,seed structure and its vigor of Eichhornia crassipes
作者:
张迎颖1 吴富勤2 张志勇1 刘海琴1 王亚雷1 王智1 张君倩1 申仕康2 严少华1*
1. 江苏省农业科学院农业资源与环境研究所, 江苏 南京 210014;
2. 云南大学生命科学学院, 云南 昆明 650091
Author(s):
ZHANG Ying-ying1 WU Fu-qin2 ZHANG Zhi-yong1 LIU Hai-qin1 WANG Ya-lei1 WANG Zhi1 ZHANG Jun-qian1 SHEN Shi-kang2 YAN Shao-hua1*
1. Institute of Agricultural Resources and Environmental Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
2. College of Life Sciences, Yunnan University, Kunming 650091, China
关键词:
凤眼莲有性繁殖种子结构种子活力生态风险
Keywords:
Eichhornia crassipessexual reproductionseed structureseed vigorecological risk
分类号:
X173
DOI:
10.7685/j.issn.1000-2030.2012.01.024
摘要:
为了探讨凤眼莲(Eichhornia crassipes)种子扩散潜在的生态风险,开展了滇池大水面凤眼莲有性繁殖和种子结构及其活力的研究。结果表明:滇池外海白山湾水域凤眼莲克隆繁殖能力较弱,大面积开花可进行有性繁殖,但结实率极低,约为5%~10%。凤眼莲种子极其微小,千粒质量仅为(0.429±0.009)g。肉眼观察其表观性状,成熟的种子呈黄褐色,状似枣核;以扫描电镜观察其种胚结构,为单胚种子,状如骨头,外包胚乳和种皮。87%~95%的饱满种子具有生活力。
Abstract:
Sexual reproduction,seed structure and its vigor of Eichhornia crassipes in Dianchi Lake were investigated in order to determine whether its seeds dispersion would initiate ecological risk.The results showed that E.crassipes preferred sexual reproduction by blossom with the ability of clonal propagation decreasing in Waihai Baishan Bay waters of Dianchi Lake,but the seed setting rate was very low,about 5%-10%.The seeds of E.crassipes were extremely small and the thousand seed weight was only(0.429±0.009)g.Observed with an unaided eye,the ripe seeds were of yellowish-brown color and shaped like common jujube seeds.Observed with scanning electric microscope(SEM),single embryo was shaped like bone which was surrounded by endosperm and spermoderm.Test results of seed vigor showed that 87%-95% of full seeds had a viability.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2011-05-11
基金项目:国家科技支撑计划项目(2009BAC63B01);云南省社会发展专项(2009CA034)
作者简介:张迎颖,博士,助理研究员,主要从事富营养化水体水生植物修复方面的研究,E-mail:fly8006@163.com。*通讯作者:严少华,研究员,研究方向为水污染治理,E-mail:shyan@jaas.ac.cn。
更新日期/Last Update: 1900-01-01