Data/hora: 01/06/2024 16:31:17

Provedor de dados: | 52
País: | Brazil
Título: | Influence of Plant Growth Regulators on In Vitro Shoot Multiplication and Plantlet Formation in Cassia angustifolia Vahl
Autores: | Siddique,Iram; Bukhari,Najat Abdullah Wahab; Perveen,Kahkashan; Siddiqui,Iffat.
Data: | 2015-10-01
Ano: | 2015
Palavras-chave: | Acclimatization; Growth regulator; Indole-3- butyric acid; Shoot tip; Senna.
Resumo: | ABSTRACTAn effective and improved plant regeneration system was successfully developed using shoot tip explants taken from a two years old mature plant of Cassia angustifolia. The effect of different cytokinins, [6-benzyladenine (BA), Kinetin (Kin) and thidiazuron (TDZ)] at different concentrations (0.5-10 µM) were evaluated as augmented with Murashige and Skoog (MS 1962) medium. Among all the cytokinins tested, TDZ (5.0 µM) was optimum in inducing multiple shoots as compared to BA and Kin. The rate of shoot multiplication was increased when optimal concentration (5.0 µM) of BA and Kin was tested with different concentration (0.1-1.0 µM) of Indole-3- acetic acid (IAA). Among all the combinations tested, the maximum rate of shoot multiplication was obtained on MS medium supplemented with 5.0 µM BA and 0.5 µM IAA. The number of the shoots and shoot length developed in TDZ was increased when transferred to MS medium devoid of TDZ. After every subculture, rate of the shoot multiplication and shoot length showed increment and continued even after fifth subculture without any decline rate. In vitro rooting in regenerated shoots were best obtained in half-strength MS medium supplemented with 2.0 µM indole-3- butyric acid (IBA). Plantlets with well-developed shoot and roots were successfully hardened off in earthen pots containing garden soil and grown in greenhouse with 80% survival rate.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500686
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132015050290
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.58 n.5 2015
Fonte: | info:eu-repo/semantics/openAccess