Effect of growth retardants on physiological parameters of mustard (Brassica juncea (L.) Czern & Cross)

The present investigation undertaken at field No. 04 at Agronomy Farm, S.K.N. College of Agriculture, Jobner. The experiment was conducted on one genotype in randomized block design with three replications and seven treatments. The genotype of Brassica juncea namely pusa jay kisan (Bio-902) were grown under rainfed condition. It is found from the data that highest relative water content at flowering was noted in treatment MC- 250 ppm (71.50 %) closely followed by other treatment CCC- 250 ppm (64.60%). The highest total chlorophyll content at flowering was noted in treatment MC-750 ppm (2.47mg/g) and at pod formation stage the highest chlorophyll content was recorded with MC-750 ppm followed by CCC-750 ppm. The highest membrane stability index, specific leaf weight, Number of leaf per plant and leaf area were also recorded with CCC-750 ppm.