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Title: <i style="">In vivo</i> induction of multiple shoots for scaling up of propagation of tree mangrove <i style="">Bruguiera gymnorrhiza </i>(Linn.) Sav.<i style=""> </i>(Rhizophoraceae)
Authors: Basak, U. C.
Das, P.
Keywords: <i style="">Bruguiera</i>
multiple shoots
Issue Date: Sep-2002
Publisher: CSIR
Abstract: <i style="">In vivo </i>shoot induction in hypocotyls and rooting of the regenerated shoots of <i style="">Bruguiera gymnorrhiza </i>(Linn.) Sav., was standardised as a new method of vegetative propagation. Rooting response of the air-layers made from multiple shoots with the aid of exogenously applied plant growth regulators (IAA+IBA) by pre-girdling is studied. Multiple shoots were induced in 80 % of the hypocotyls treated and the number of regenerated shoots varied from 2-5 with an average value of 3.5 per hypocotyl. Better rooting performance (80 %) was recorded in air-layers treated with IAA+IBA (3000 mg l<sup>-1 </sup>each). More than 80 % of the rooted air-layers survived in the nursery in polybags. Thus, through this method, 2-3 times more planting materials could be made available for vegetative propagation of <i style="">B. gymnorrhiza.</i>
Description: 249-250
ISSN: 0379-5136
Appears in Collections:IJMS Vol.31(3) [September 2002]

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