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梵净山石斛快速繁殖技术研究

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为研究梵净山石斛快速繁殖技术,对其保育提供基础资料,本实验分别以梵净山石斛茎段、种子为外植体进行组培快速繁殖技术研究.结果表明,以茎段为外植体,最佳消毒方法为:75%乙醇消毒30 s,0.1%HgCl2消毒13 min,腋芽诱导最佳组合为:1/2 MS/B5+0.5 mg/L 6-BA+0.2 mg/L NAA,不定芽诱导和增殖最佳组合为:1/2 MS+0.5 mg/L NAA+1 mg/L 6-BA,以种子为外植体,种子萌发和原球茎诱导最佳组合为:MS+1.0 mg/L NAA+1.0 mg/L 6-BA+1 g/L活性炭,原球茎增殖最佳组合为:MS+0.5 mg/L NAA+2 mg/L 6-BA,无菌小苗增殖最佳为:MS+0.5 mg/L NAA+1.0/2.0/3.0 mg/L 6-BA.生根壮苗最佳组合为:MS+0.5 mg/L NAA+1/0.1/0.5 mg/L IBA.
Study on Rapid Propagation Technology of Dendrobium fanjingshanensis
In order to study the rapid propagation technology of Dendrobium fanjingshanensis and pro-vide basic data for its conservation,the stem segment and seed of Dendrobium fanjingshanensis were used as explants to study the rapid propagation technology of tissue culture.The results showed that:with stem segment as explants,the best disinfection methods were:75%ethanol disinfection for 30 s,0.1%HgCl2 disinfection for 13 minutes,and the best combination of axillar bud induction was:1/2 MS/B5+0.5 mg/L 6-BA+0.2 mg/L NAA,the optimal combination of adventitive bud induction and proliferation was:1/2 MS+0.5 mg/L NAA+1 mg/L 6-BA,with seeds as explants,the optimal combination of seed germination and procorm induction was:MS+1.0 mg/L NAA+1.0 mg/L 6-BA+1 g/L activated carbon,and the optimal combination of procorm proliferation was:MS+0.5 mg/L NAA+2 mg/L 6-BA,the optimal proliferation of sterile seedlings was MS+1.0 mg/L NAA+1.0/2.0/3.0 mg/L 6-BA.The best combination of rooting and strong seedlings was MS+0.5 mg/L NAA+1/0.1/0.5 mg/L IBA.

Dendrobium fanjingshanensistissue culturerapid propagationseedsstem segment

刘芳、任启飞、胡世俊、马菁华、陈云飞、欧明烛、李海波、李晓芳

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贵州省植物园,贵阳 550004

国家林业和草原局西南喀斯特山地生物多样性保护重点实验室,贵阳 550004

西南林业大学,昆明 650224

贵州梵净山国家级自然保护区管理局,贵州江口 554400

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梵净山石斛 组织培养 快速繁殖 种子 茎段

贵州省林业科研项目贵州省林业科研项目贵州省科技计划项目贵州省科技计划项目

黔林科合[2022]03号黔林科合[2022]01号黔科合基础ZK-[2023]一般236黔科合基础ZK-[2023]一般235

2024

种子
贵州省种子管理站 贵州省种子学会 中国种子协会

种子

CSTPCD北大核心
影响因子:0.502
ISSN:1001-4705
年,卷(期):2024.43(10)