尾赤桉组织培养技术研究

A Study on Tissue Culture of Eucalytus urophylla × E.camalduiensis

  • 摘要: 以根部萌蘖条的顶芽或茎段为外植体,在不同基本培养基和不同激素及不同浓度水平下诱导尾赤桉,进行组培研究.结果表明:外植体最佳诱导培养基为改良MS+6-BA 0.3 mg/L+IBA 0.5 mg/L,诱导率达71.2%;芽增殖培养基为改良MS+6-BA 0.4 mg/L+NAA 0.6 mg/L;生根培养基为改良MS+IBA 1.0 mg/L,生根率98%.移栽基质以红心土为佳.

     

    Abstract: By makusing use of apical buds or stem sections as the explants, the tissue culture of the stump shoots of Eucalytus urophylla × E. camalduiensis was experimented with different fundamental media, different types and different concentration levels of plant growth regulators. It was showed by the results that the optimal medium for explant induction was the improved MS+6-BA 0.3 mg/L+IBA 0.5 mg/L, and the induction rate reached 71.2%. The best medium for bud multiplication was the improved MS+6-BA 0.4mg/L+NAA 0.6mg/L and the best medium for rooting was the improved MS+IBA 1.0 mg/L, whose rooting rate reached 98%. Red-heart soil was the optimal substrate material for transplanting of the nurtured young plant.

     

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