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大叶种胡椒实生苗茎尖培养和合子胚培养研究(英文)
刘进平;郑成木
1.华南热带农业大学农学院;2.华南热带农业大学农学院 海南儋州571737;3.海南儋州571737
摘要:
利用各种表面消毒方法对采自海南岛三个地区的胡椒大田植株的外植体进行消毒试验,由于内源性污染,除胡椒成熟种子外,其它各种大田外植体的表面消毒均未能成功。以胡椒成熟种子无菌萌发的实生苗茎尖作外植体,在1/2MS(MS或B5)+1.5mg/LBA+0~0.2mg/LIAA(或NAA)上可实现丛生芽增殖。茎尖水平或竖直接种方法显著影响茎尖的增殖;水平接种茎尖的生长和增殖效果优于竖直茎尖接种方式。茎尖增殖率随BA浓度的增加而提高,但BA浓度大于2.0mg/L时会使苗芽的质量降低,愈伤组织产生严重,苗芽细小,抽出不明显,颜色发黄甚至变白。附加或不附加100mg/LAdSO4对丛生芽增殖没有明显影响。生根培...
关键词:  胡椒    茎尖培养    胚培养
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