Plant and Cell Physiology, 1970, Vol. 11, No. 4 681-684
© 1970
Short communication |
Interaction of abscisic acid and auxins in rooting of cuttings
1College of Agriculture, Calcutta University 35 Ballygunge Circular Road, Calcutta-19, India
The Royal Agri-Horticultural Society of India 1, Alipore Road, Calcutta-27, India
Abscisic acid (ABA) at optimum concentrations promoted rooting of Phaseolus aureus ROXB. and Lycopersicon esculentum MILL, stem cuttings. In combination with IAA (indole-3-acetic acid) ABA has mostly given additive effects. Synergistic effect of ABA was noted on IBA (
-indolebutyric acid)-induced rooting of Lycopersicon cuttings. Rooting of Phaseolus vulgaris L. cuttings completely failed when ABA (50 mg/liter) was applied in combination with IBA or NAA (
-naphthaleneacetic acid). The results suggest that abscisic acid may be an important natural regulator of rooting in cuttings.
(Received March 19, 1970; )
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