
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