Harvesting Indices of Mango (Mangifera indica L.) cv. Nam Dokma;

Abstract

Harvesting indices of Nam Dokmai Mango was studied in relation to fruit setting date, total soluble soilds: citric acid ratio fruit firmness. specific gravity and heat unit. It was found that total soluble solids; citric acid ratio gradually increased while fruit firmness gradually decreased as the mango fruit became more mature. It was suggested that fruit setting date, total soluble solids; citric acid ratio, fruit firmness, specific gravity and heat unit may be used as the harvesting index for Nam Dokmai mango. The best quality of Nam Dokmai mango should be harvested during 99-111 days after fruit set. The mango fruit harvested during this period had total soluble solids; citric acid ratio of 6.01-10.10. fruit firmness of 12.30-9.60 pounds. specific gravity of 1.03-1.04 and heat unit of 850.2-1.002.7 CDD. The ripe fruit had total soluble solids: citric acid ratio more than 16 flesh color was 10 YR 8/10 moderate orange yellow and B-caratene content was between 3.498-4. 788 ug per 100 gram fresh weight.