Estimation of heat units as maturity indices for different mango varieties in Konkan region of Maharashtra.
Burondkar M. M., Bhingarde R. T., Kore V. N., Powar A. G.
Author Affiliation: Konkan Krishi Vidyapeeth, Dapoli - 415712, Dist. Ratnagiri (M.S.), India.
: 297-299
Abstract : A field trial was conducted during 1997 simultaneously at two different locations to estimate the heat units required for the maturation of commercial mango cultivars Alphonso, Kesar and Ratna grown under the most common soil conditions at Vengurla and on typical lateritic rocky slopes at Deogad. Results indicated that all 3 cultivars differ significantly in their period of maturation at both locations. However, total heat units recorded by each cultivar at both locations were similar. Alphonso recorded minimum duration (111 and 93 days) and heat units (718 and 701 degree days) at both locations followed by Kesar (118 and 98 days; 773 and 799 degree days) and Ratna (127 and 112 days; 849 and 866 degree days). This could be attributed to the exposure of fruits of all the cultivars to comparatively more heat units (1.24 per day) at Deogad than Vengurla.