Department of Plant Physiology, S.K.N. College of Agriculture. Jobner-303329 India
*Present Address: Research Consultant, I.R.R.I., C.S.S.R.I. Karnal
Online published on 31 August, 2012.
A pot experiment was conducted to study the harmful effect of salinity and their amelioration by the application of brassinolide on physiological, biochemical traits, growth and yield of cluster bean cultuvars namely ROC-1038 (salinity tolerant) and RGC-936 (salinity susceptible). These varieties were grown in cemented pots under different levels of salinity (0, 8, 12, dSm-1). Plants were sprayed at vegetative and flowering stage with brassinolide solution (0,0,1, 0.5 and 1.0 ppm). Normal water was applied to control plants. Salinity was found to decrease significantly the photosynthesis rate, transpiration rate, stomatal conductance, relative water content, chlorophyll stability index, number of pods per plant, number of seeds per pod, plant height, pod length, test weight, grain yield. The use of Brassinolide up to, 1.0 ppm was observed to increase significantly in these parameters.
