M., SHIVANNARAO, VENKATK. H., SHARATHKUMARALUR, ASHOK S.G. S. K., SWAMYS., ANIL KUMAR2021-10-212021-10-212019-08UHS17PGM951https://krishikosh.egranth.ac.in/handle/1/5810177198The present investigation entitled that “Effect of foliar spray of potassium and micronutrients on growth, yield and quality of papaya (Carica papaya L.) cv. Red Lady” was conducted in Farmer’s field at Basur village, Sorab taluk, Shivamogga dist. of Karnataka during the year 2018-2019. The experiment was laid out in randomized complete block design with three replication and eleven treatments. Results revealed that the combined application of T7 - K2SO4 @ 1% + Borax @ 0.25% + ZnSO4 @ 0.25% recorded significantly maximum growth parameters i.e. plant height (244.44cm), plant girth (44.72cm), number of leaves per plant (48.11), petiole length (97.33cm) and plant spread from N-S direction (241.88cm) and plant spread from E-W direction (247.24cm) and flowering and fruiting characters like days taken to first flowering, days taken to first fruiting and days taken to fruit maturity were significantly minimum (65.11days, 90.22days and 224.42days, respectively) and yield and yield attributing parameters i.e. fruit length (27.20cm), fruit diameter (16.17cm), fruit weight (2438g and 2.43kg), number of fruits per plant (49.67), yield plant-1 (90.07kg) and yield (224.96 t ha-1), pulp weight (2343.74g), peel weight (54.98g), seed weight (52.70g) and quality characters i.e. total soluble solids (13.52obrix), ascorbic acid (54.42mg 100g-1), total sugar (5.64%), reducing sugar (4.60%) and minimum acidity (0.13%) over control and non-reducing sugar was found to be statistically non-significant. Nutrient content and uptake of macro and micro nutrients in petiole of papaya were found statistically significant with the combined application of Potassium sulphate @ 1% + Borax @ 0.25% + Zinc sulphate @ 0.25%.Among the different micronutrient application, the treatment T7 - K2SO4 @ 1% + Borax @ 0.25% + ZnSO4 @ 0.25% were found maximum B: C ratio (1:5.20) and effectively improved the growth, yield and quality of papaya cv. Red Lady.EnglishThesis