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Articles

FIRST REPORT OF COHNIELLA CEPULA (ORCHIDACEAE) IN VITRO FLOWERING

Article number
1083_53
Pages
415 – 417
Language
English
Abstract
Cohniella is a neotropical genus widely distributed in Central and South America.
It is characterized by medium to large plants with small pseudobulbs and conical succulent leafs (terete leafs). The literature about in vitro culture of this genus is rare.
The culture media composition and concentration have a marked effect on explant growth or in vitro flower formation.
The aim of this study was induced flowering in Cohniella cepula. Seeds of C. cepula were germinated aseptically in modified Knudson C medium supplemented with 2% (w/v) sucrose, and 0.7% (w/v) agar.
Six-month-old plants were transferred to three different treatments.
Two plants were induced to flower after five months.
The in vitro flower durability was only 5 days, much less than in vivo plants.
In vitro flowering has shown that it is possible to shorten the relatively long juvenile phase of most orchids.

Publication
Authors
L.L. Carneiro, D. Mota-Silva, S.T. Sibov
Keywords
benzylaminopurine, induced flowering, orchid, precocious flowering
Full text
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