| 红树植物角果木胚轴的萌发特性 |
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| 引用本文： | 陈燕,成夏岚,林康英,许方宏,陈粤超.红树植物角果木胚轴的萌发特性[J].湛江师范学院学报,2012,33(3):105-109. |
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| 作者姓名： | 陈燕 成夏岚 林康英 许方宏 陈粤超 |
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| 作者单位： | 1. 湛江师范学院生命科学与技术学院,广东湛江,524048
2. 广东湛江红树林国家级自然保护区管理局,广东湛江,524088 |
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| 基金项目： | 广东省科技计划资助项目(2008B020300001);湛江市科技攻关计划项目(2011C3106019) |
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| 摘 要： | 对采自广东省徐闻县迈陈镇海岸的红树植物角果木Ceriops tagal胚轴进行萌发试验.设置(a)不同盐度(0、10‰、20‰、30‰海水)黑暗(下胚轴)水培、(b)不同盐度光照(下胚轴)水培、(c)沙培自来水浇灌争(d)土培自来水浇灌4组试验,探讨盐度、光照和基质等因素对胚轴萌发的影响.结果表明,角果木胚轴最适萌根盐度为0～20‰,最适萌芽盐度为10‰；与10‰盐度的黑暗(下胚轴)水培相比,光照(下胚轴)水培的胚轴萌根率下降10％、萌芽率下降76.7％,表明光对下胚轴萌发有抑制作用；胚轴在河沙和红壤土中均能正常发芽,萌芽率达90％以上.
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| 关 键 词： | 角果木 胚轴 萌发 盐度 光照 基质 |
Study on Hypocotyls Germination Characteristics of Mangrove Plant Ceriops Tagal |
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| CHEN Yan
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CHENG Xialan
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LIN Kangying
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XU Fanghong
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CHEN Yuechao.Study on Hypocotyls Germination Characteristics of Mangrove Plant Ceriops Tagal[J].Journal of Zhanjiang Normal College,2012,33(3):105-109. |
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| Authors: | CHEN Yan CHENG Xialan LIN Kangying XU Fanghong CHEN Yuechao |
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| Institution: | 1.School of Life Science and Technology,Zhanjiang Normal College,Zhanjiang 524048,Guangdong,China; 2.The Administration of Zhanjiang Mangrove National Nature Reserve,Zhanjiang 524088,Guangdong,China) |
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| Abstract: | In order to probe the effects of salinity,light and culture medium on hypocotyls germination,the germination experiment of Ceriops tagal hypocotyls collected from coast near Maichen twon,Xuwen county,Guangdong province was conducted.Hypocotyls were cultured by(a) different salinity of seawater(0,10‰,20‰ and 30‰ of NaCl) with hypocotyls under dark;(b) different salinity of seawater(0,10‰,20‰ and 30‰ of NaCl) with hypocotyls under light;(c) sand watered with tap water and(d) soil watered with tap water.The results showed that the optimal salinity for rooting and budding are 0~20‰ and 10‰,respectively.Hydroponically cultured with 10‰ salt under light,the rooting rate and budding rate decreased by 10% and 76.7%,respectively compared with that under dark,which indicated that light inhibited hypocotyls germination of Ceriops tagal.Cultured with sand and red soil,hypocotyls could germinate normally,with the germination rate over 90%. |
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| Keywords: | Ceriops tagal hypocotyls germination salinity illumination culture medium |
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