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Tạp chí khoa học KTNLN
Tạp chí tiếng anh
Bài báo - Tạp chí
Số tạp chí 6(2017) Trang: 1-7
Tải về

Poinsettia plants (Euphorbia pulcherrima Willd.) is a flowering potted plant with an high economic value, especially in Christmas and New Year. Conventional propagation of poinsettia by seed and cuttings has several limitations due to genetic variability and a low rate of propagation. This study presents the results of in vitro propagation for poinsettia. Nodal segments with axillary buds were sterilized with javel:distilled water at ratio 1:2 (v/v) in 15 minutes obtained 53.3% cleaned samples. Effect of 6-benzyladenine (BA), naphthalene acetic acid (NAA), gibberellin acid 3 (GA3), indole 3- butyric acid (IBA) on in vitro shoot and root formation was studied. Full- strength Murashige and Skoog (MS) medium supplemented with 0.5 mg.L-1 BA and 0.1 mgL-1 NAA was the best for shooting (4.8 shoots per explant). Shoots were transferred onto MS medium adding 0.3 mg.L-1 GA for elongation within 4 weeks. The elongated shoots were rooted on half-strength MS medium containing 2 mg.L-1 IBA and plantlets were successfully acclimatized with 75% survival rate.

 

 
 
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