Laishram, NomitaShah, Ali Haidar2020-12-142020-12-142020-09-28J-18-M-554https://krishikosh.egranth.ac.in/handle/1/5810156612The present investigation entitled “Effect of mycorrhiza on growth and flowering of chrysanthemum (Chrysanthemum coronarium L.) in soil supplemented with vermicompost” was carried out at the Experimental Farm, Division of Vegetable Science & Floriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology, Main Campus, Chatha, Jammu (J&K). The experiment was carried out in Factorial Randomized Block Design with sixteen treatments replicated thrice viz., 04 mycorrhiza treatments (No application (M0), Glomus mosseae (M1), Acaulospora laevis (M2), Gigaspora margarita (M3) and 04 vermicompost Doses (0 g/ m2 (V0), 500 g/ m2 (V1), 750 g/ m2 (V2), 1 kg/ m2 (V3).Among the various mycorrhiza treatments used, maximum plant height (100.33 cm), number of side shoots per plant (13.08) number of flowers per plant (103.58), flower diameter (7.30 cm) and flower duration (49.33 days) was recorded with the application of Glomus mosseae. The effect of mycorrhiza on days to 50% flowering was found to be non-significant. Maximum flower weight (7.84 g), flower yield per plant (767.69 g), highest shelf life (7.75 days), highest shoot fresh weight (695.83 g), shoot dry weight (216.00 g), highest shoot: root ratio (12.84) and partitioning coefficient of shoot (87.17 %) was recorded with the application of Gigaspora margarita. Maximum plant spread of 1577.42 cm2, highest root fresh weight (53.83g), root dry weight (38.86 g) and partitioning coefficient of root (17.54 %) was recorded with the application of Acaulospora laevis. Among the various vermicompost doses, vermicompost @ 1kg/m2 recorded highest plant height (102.58 cm), number of side shoots per plant (13.66), plant spread (1582.28, earliest 50% flowering (148.83 days), maximum number of flowers per plant (102.88), flower weight (7.78 g), flower diameter (7.4 cm), flowering duration (51.92 days), flower yield per plant (799.90 g) and maximum shelf life (7.89 days). Highest shoot fresh weight (671.08 g), root fresh weight (53.83 g), maximum shoot dry weight (38.97g) was recorded with vermicompost @ 1 kg/m2. The effect of vermicompost on shoot: root ratio and partitioning coefficient was found to be non- significant. The interaction effect revealed highest plant height (107.00 cm), maximum number of side shoots per plant (18.22), maximum number of flowers per plant (107.88), flower diameter and flowering duration (57.00 days) was recorded with Glomus mosseae + vermicompost @ 1 kg/m2. Least number of days for 50% flowering (146.67 days) with the application of no mycorrhiza + vermicompost @ 1kg/m2 days. Maximum flower weight (8.64 g), maximum flower yield (902.36 g) and shelf life (8.40 days) was recorded with Gigaspora margarita + vermicompost @ 1 kg/m2).EnglishThesis