Effect of Plant Growth Regulators on In Vitro Propagation of Dendrobium ellipsophyllum Tang & F.T.Wang

Authors

  • Wuttichai - Ritti Faculty of Science and Technology, Phetchaburi Rajabhat University
  • Boonsanong Chourykaew
  • Nattawadee Malai
  • Rattanaporn Yeamnin

Abstract

In vitro seedlings of Dendrobium ellipsophyllum Tang & F.T.Wang were cultured on MS medium supplemented with cytokinin (BA, kinetin, TDZ) at 0 0.1 0.5 1.0 or 2.0 mg/L for 12 weeks. The result showed that the highest percentage of shoot formation (47.5%), shoot numbers (1.85 shoots/plant) and leaf numbers (4.45 leaves/plant) were obtained when cultured on the medium with 0.1 mg/L TDZ. D. ellipsophyllum Tang & F.T.Wang seedling on medium was supplemented with auxin (NAA, IAA, IBA) at 0 0.1 0.5 1.0 or 2.0 mg/L for 12 weeks. The result showed that the highest percentage of shoot formation (42.5%), shoot numbers (1.73 shoots/plant) including highest of root numbers (4.40 roots/plant) (100%) was observed on the medium supplemented with 2.0 mg/L NAA. Moreover, the seedling of D. ellipsophyllum Tang & F.T.Wang on MS medium supplemented with 0.5 mg/L NAA and 1.0 mg/L TDZ for 12 weeks. The results showed the highest percentage of shoot formation (50%), the highest average of shoot numbers (1.90 shoots/plant) and leaf numbers (5.68 leaves/plant).Keyword: Dendrobium ellipsophyllum Tang & F.T.Wang, plant growth regulators, in vitro

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2017-07-06

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บทความวิจัยจากการประชุมวิชาการระดับชาติ"วิทยาศาสตร์วิจัย"ครั้งที่ 9