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1 May 2004 EFFECT OF THIDIAZURON IN GERMINATING TAMARIND SEEDLINGS
URMIL J. MEHTA, SHAILA M. BARRETO, SULEKHA HAZRA
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Abstract

Tamarind, a multipurpose tropical tree species, is economically important for sustainable development of wasteland due to its hardy nature and adaptability to various agroclimatic conditions. Reports on in vitro morphogenesis in this species are limited, due to its recalcitrant and callogenic nature. To overcome these limitations, an attempt was made to induce meristematic activity in seedling explants. Seedlings were germinated in medium with or without thidiazuron (4.54, 9.08, 13.12, 18.16 μM). This growth regulator restricted the differentiation of the apical meristem to form shoots. It triggered proliferation of the meristematic tissue at the cotyledonary node and a large number of meristematic buds appeared in a radial pattern around the node. The meristematic activity extended to the junction of the epicotyl and hypocotyl, giving rise to buds in the form of protuberances in all sides of the junction. These buds differentiated to form shoot primordia and subsequently to shoots in medium devoid of growth regulators. Plants developed by micrografting of these shoots on seedling-derived rootstocks survived in soil.

URMIL J. MEHTA, SHAILA M. BARRETO, and SULEKHA HAZRA "EFFECT OF THIDIAZURON IN GERMINATING TAMARIND SEEDLINGS," In Vitro Cellular and Developmental Biology - Plant 40(3), 279-283, (1 May 2004). https://doi.org/10.1079/IVP2003507
Received: 4 February 2003; Accepted: 1 September 2003; Published: 1 May 2004
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KEYWORDS
Organogenesis
seedling
Shoot differentiation
Tamarindus indica L
Thidiazuron
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