PATIL, S. N.INGALAGAVI, RASHMIHIPPARAGI, KULAPATIV, KANTHARAJUAWATI, MALLIKARJUN2020-09-232020-09-232019-08UHS17PGM895https://krishikosh.egranth.ac.in/handle/1/5810151850The present investigation entitled “Evaluation of different cultivars of sapota (Manilkara achras L.) under northern dry zone of Karnataka” was carried out during 2018-2019 using RCBD design under AICRP on fruits, KRCCH, Arabhavi. The investigation consisted of four experiments based on trees age. First experiment consisted 14 cultivars of 22 years old, second experiment consisted 7 cultivars of 17 years old, third experiment consisted 5 cultivars of 14-15 years old and fourth experiment consisted 8 cultivars of 10-11 years old. In the first experiment, DHS-1 recorded the maximum plant height (8.10 m), canopy volume (305.25 m3), fruit weight (139.82 g), fruit volume (77.40 ml), fruit yield (156.25 kg/tree). The maximum TSS was found in Oval (24.00 oBrix), the maximum TSS:acid ratio was found in PKM-2 (106.45). In the second experiment, Cricket Ball (ARSA) recorded the maximum plant height (6.84 m), canopy volume (154.90 m3), fruit weight (102.83 g), fruit yield (111.67 kg/tree). The maximum fruit volume was found in Cricket Ball (Udupi) (84.07 ml). The maximum TSS was found in Virudhnagar (23.00 oBrix), the maximum TSS:acid ratio was found in Singapore (84.06). In the third experiment, PKM-4 recorded the maximum plant height (5.56 m), canopy volume (63.71 m3), fruit weight (94.07 g), fruit yield (70.63 kg/tree). The maximum fruit volume was found in Kalipatti (Udupi) (75.05 ml). The maximum TSS was found in Variegated sapota (22.25 oBrix), the maximum TSS:acid ratio was found in Pala (75.33). In the fourth experiment, Dwarapudi recorded the maximum plant height (5.87 m), canopy volume (60.46 m3), fruit weight (110.08 g), fruit volume (87.20 ml), fruit yield (43.67 kg/tree). The maximum TSS was found in Gholwad sapota (24.83 oBrix), the maximum TSS:acid ratio was found in Calcutta Round (85.49). Apart from DHS-1 and Cricket Ball (ARSA), PKM-4 and Dwarapudi are found to be superior cultivars for northern dry zone of Karnataka.EnglishThesis