Propagation of Ornamental Plants
12(4): 215-219, 2012
IN VITRO PROPAGATION OF POLYGONATUM ODORATUM DRUCE VAR. PLURIFLORUM OHWI F. VARIEGATUM Y. N. LEE
Iyyakkannu Sivanesan1 and Byoung Ryong Jeong1,2,3*
1Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, South Korea 660-701, *Fax: + 82-55-757-7542, *E-mail: brjeong@gnu.ac.kr 2Division of Applied L ife Science (BK21 Program), Graduate School, Gyeongsang National University, Jinju, South Korea 660-701 3Research Institute of Life Science, Gyeongsang National University, Jinju, South Korea 660-701
Abstract
A protocol for in vitro propagation of variegated Solomon’s seal (Polygonatum odoratum Druce var. pluriflorum Ohwi f. variegatum Y. N. Lee) was developed. Rhizome explants were cultured on Anderson’s basal nutrient (AM) medium supplemented with different concentrations and combinations of plant growth regulators. Adventitious shoots were induced directly on the surface of explants when the culture medium was supplemented with cytokinin alone. The highest frequency of shoot induction (100%) was obtained when the explants were cultured on AM medium supplemented with 1.0 mg l-1 2,4-D, 2.0 mg l-1 2iP, and 0.5 mg l-1 TDZ, with a mean number of 7.6 shoots. The greatest frequency of rooting (100%), with maximum mean number of 5.2 roots were obtained on half strength AM medium supplemented with 1.0 mg l-1 NAA. The survival rate of regenerated plants transferred to the greenhouse was 80.8 ± 1.2%. The acclimatized plants grew normally without morphological abnormalities or variations.
Key words: Anderson’s basal nutrient medium, direct regeneration, plant growth regulators, rhizome explants, variegated Solomon’s seal
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