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独蒜兰种子的自然萌发特性(Ⅱ) 被引量:2

Natural Germination Characteristics of Pleione bulbocodioides Seeds(Ⅱ)
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摘要 为了解独蒜兰种子的萌发特性,保护和利用独蒜兰资源,设计3个播种地点(开垦地、栽培地、原生地)和4个播种时间(8月、9月、10月、11月)的试验以探究独蒜兰种子自然萌发与播种地点、播种时间的相关性。结果表明:原生地播种种子顺利萌发至第4阶段原球茎,同时具有最高萌发率、萌发生长指数,最低死亡率,其中,萌发生长指数差异达到显著水平;11月播种种子萌发率、萌发生长指数相对比8月、9月、10月高,其中,萌发生长指数显著高于8月、9月播种。因此,选择原生地在11月播种利于独蒜兰种子的萌发和生长。 In order to understand the natural germination characteristics of P.bulbocodioides seeds,protect and utilize P.bulbocodioides resource,three sowing sites(reclamational soil,cultivation soil and soil in situ)and four sowing times(August,September,October,November) were designed to explore the natural germination characteristics of P.bulbocodioides seeds.The results showed that seeds sowed in situ could germinate to the fourth stage protocorm with the highest germination rate and germination-growth index and the lowest death rate.Seeds with the highest germination rate and germination-growth index and the lowest death rate were those being sowed in November,the germination-growth index was significantly higher than that sowed in August and September.Consequently,seeds sowed in situ in November was beneficial to their germination and growth.
出处 《贵州农业科学》 CAS 北大核心 2013年第6期59-62,共4页 Guizhou Agricultural Sciences
基金 贵州省中药现代化科技产业研究开发专项项目"贵州道地药材独蒜兰繁殖特点和繁殖栽培技术研究"[黔科合社字(2009)5036] 贵州省中药现代化科技产业研究开发专项项目"贵州道地药材独蒜兰优良种源筛选和种子种苗工厂化生产技术研究"[黔科合中药字(2011)5039] 贵州省科技计划项目"药用植物和作物资源研究与开发应用创新能力建设"[黔科合院所创能(2010)4002] 中央补助地方科技基础条件专项基金项目"兰科植物研究与开发应用平台建设"[黔科条中补地(2010)4002] 贵州省农业科学院博士科研启动项目"兰科植物共生丝核菌多基因分类研究"[黔农科院人才启动项目(2009)006] 贵州省农业科学院研究生科研创新基金项目"独蒜兰种质资源多样性评价及应用研究"[黔农科合(创新基金)2012001]
关键词 独蒜兰 有性繁殖 原生地 萌发生长指数 Pleione bulbocodioides sexual propagation in situ germination-growth index
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