Effect of growth retardants on yield and yield 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 revealed from the data that the days to 50 per cent flowering decreased significantly with cycocel and mepiquat chloride. The days to 50 per cent flowering was minimum with CCC-250 ppm (56.35) closely followed by MC-250 ppm (56.60). Result further showed that under rainfed condition treatment CCC-750 ppm recorded the maximum number of siliquae per plant (240.20), number of seeds per siliqua (20.50), test weight (6.15 g), seed yield (667.25 kg/ha), biological yield and oil yield (267.56 kg/ha). The non-significant difference was observed between CCC-750 ppm and CCC-500 ppm. The harvest index shows non significantly difference among different treatment. Although the maximum harvest index was reported with CCC-500 ppm.