Study of Factors Influencing Vegetative Propagation of Jatropha curcas

Different auxin concentrations significantly influenced the ischolar_maining in J. curcas. Auxin concentrations of 500 mgl^-1 and 1000 mgl^-1 IBA showed minimal sprouting and ischolar_maining than untreated cuttings. The untreated cuttings yielded 93.50 % and 81.30 % sprouting, 62.60 % and 47.60 % ischolar_maining and 15.98 and 11.47 ischolar_mains/cutting in mist chamber and field, respectively. Cuttings from lower positions gave better (82.00 %) sprouting than middle (75.70 %) and upper (66.60 %) positions. Rooting varied from 35.40 % to 57.20 % for different cutting positions tested. For number of ischolar_mains/cutting, lower position had highest (10.79) and upper position had lowest (6.84) number of ischolar_mains. Among the three seasons tested, rainy season gave maximum (7.20 cm) ischolar_main length while it was lowest (5.19 cm) in winter. Rainy season yielded highest (11.33) ischolar_main number whereas, winter had lowest (6.36) ischolar_main number. Rooting was highest (58.90 %) in rainy season and lowest (29.50 %) during winter season. Sprouting was also maximum (91.70 %) in rainy season and minimum (51.30 %) in winter season. J. curcas is easy to ischolar_main and there is no need to apply auxin (IBA) externally. Without auxin (IBA) treatment, it produced sufficient sprouting and ischolar_maining. The study suggests growing thicker cuttings with 14-15 mm diameter in rainy season yields maximum sprouting and ischolar_maining.