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IJEB Vol.46(04) [April 2008] >


Title: Effects of different factors on immature embryo culture, PLBs differentiation and rapid mass multiplication of Coelogyne suaveolens (Lindl.) Hook
Authors: long, Sungkum
Deb, Chitta Ranjan
Keywords: Endangered epiphytic orchid
Immature seed culture
In vitro multiplication
Seed age
Issue Date: Apr-2008
Publisher: CSIR
Abstract: In vitro mass production of C. suaveolens (Lindl.) Hook, an endangered orchid with its snowy white flowers having horticultural potential was accomplished through immature seed culture, and subsequent plant regeneration. The developmental stage of the immature seeds and nutrient media significantly influenced the germination frequency. Seeds at 13 months after pollination cultured on 3% sucrose containing Murashige and Skoog (MS) medium with 9 µM a-naphthaleneacetic acid (NAA), and 15% coconut water exhibited 93% germination after 40 days of culture. Upon subculture, the germinated shoots on MS medium with 9 µM BA, 6 µM NAA, 3% casein hydrolysate and 0.1% activated charcoal (AC) yielded >12 shoots per shoot or bud. Addition of AC favoured the enlargement of pseudobulbs and better rooting. The plantlets transferred to community potting mix after in vitro hardening (8-10 wk) displayed 85% survival.
Page(s): 243-248
ISSN: 0019-5189
Source:IJEB Vol.46(04) [April 2008]

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