观赏性山楂资源组织培养快繁体系建立

Molecular Plant Breeding(2022)

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Abstract
以极具观赏价值的山楂资源为试材,探究不同取材部位、灭菌时间、不同培养基及植物生长调节剂对其组培快繁的影响,以建立山楂快繁体系.结果表明:将山楂带芽茎段用70%酒精灭菌30s,0.1%HgC12消毒8 min后,在启动培养基MS+0.5 mg/L 6-BA中进行启动培养,启动率达94.44%;在MS+0.2 mg/L 6-BA+0.02 mg/L NAA培养基中进行继代增殖,增殖系数达4.10;在1/2MS+0.5 mg/L IBA+0.2 mg/L NAA培养基中培养4 d后,转入1/2MS(蔗糖15 g/L)中进行生根培养,25 d后生根率达85.18%;移栽至纯蛭石基质中,成活率达92%.
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