Morpho-physiological responses of chickpea (Cicer arietinum L.) as influenced by gibberellic acid (GA3) under induced salinity

Sadhana Singh1, A Hemantaranjan2, Rajesh Singh3, Bandana Bose2, Pradeep Kumar4

1SRF, DIBER (DRDO), Gorapadao, Haldwani-263139, Nainital, Uttrakhand

2Plant Physiology, IAS, BHU, Varanasi-221005

3Genetics and Plant Breeding, IAS, BHU, Varanasi-221005

4Pulse Research laboratory, IARI, PUSA, New Delhi

 Received: 13 February 2015 Revised Accepted: 26 April 2015

ABSTRACT

The effect of GA3 on growth of chickpea var. RSG-888 under different levels of salinity was studied. A gradual reduction in shoot length, leaf number, fresh weight and dry weight was observed under salt stress. GA3 treatment increased the shoot height, leaf number under salt stress. It also improved fresh and dry weights of plant. Significant results were obtained for all the growth parameters observed under salt stress. Plant height and fresh and dry weight of shoot decreased under salinity stress. Application of 2.5 and 5 ppm gibberellic acid compensated this adverse effect of salinity. The efficiency of gibberellic acid is to mitigate the effect of salinity reduced with rise in salinity.

Key Words: Acid NaCl, Chickpea, Cicer arietinum, Gibberellic