Effect of Brassinolide in amelioration of salinity adverse effects on growth and yield of wheat

Abstract

The present research was aimed to study the effect of Brassinolide in amelioration of salinity adverse effects on growth and yield of wheat at Department of Plant Physiology, S.K.N. College of Agriculture, Jobner, Rajasthan during rabi, 2013. Two wheat cultivars namely HD-2687 (salinity susceptible) and Raj-3777 (Salinity tolerant) were raised in petri-dishes and in cemented pots under salinity conditions (0, 4 and 8 dSm-1) brassinolide (0.0, 0.25, 0.50 and 1.0 ppm) were also added in the saline set of petri-dishes and pots. Spray treatment with brassinolide up to 1.0 ppm significantly increased Number of spikes per plant, grain yield, biological yield per plant. The maximum increase in number of spikes per plant, grain yield, and biological yield per plant was found under non stress conditions with 1.0 ppm concentration of brassinolide in both genotypes. It may be concluded that among both the genotype Raj-3777 observed salinity tolerant and the tolerance was mediated by morphological characteristics. The experiment again reflects the significant role of brassinolide in increasing productivity of wheat by improving germination, seedling growth, yield and yield attributes under non stress and salt stress conditions.