Aptitudes des Principaux Porte-Greffages de Mangifera indica à Supporter les Variétés Primeurs comme Kent, Papaye et Ateudj en Casamance

The value of mango production in Senegal is estimated at nearly 4 billion CFA francs. However, like the other fruit and vegetable sectors, the performance of the mango sector still falls short of the agreements. In order to meet this challenge, this study focuses on the grafting of local varieties to improve their productivity. This work carried out in the application center of the agroforestry department concerns the grafting test of two early varieties of Mangifera indica (Papaya and Ateudj) with four rootstocks (Papaya, Sierre Léone, Diourou and Kouloubadaséky). This work contributed to the identification of the best rootstocks for the early varieties Papaya, Kent and Ateudj. It emerged from this experiment that the Kouloubadaséky variety gives a better success rate (93.33% ±11.55) with the Ateudj variety. The Diourou variety gives the highest success rate (90% ±10). The Papaya variety gave the best success rate (100%) with itself. The performance of the Kouloubadaséky, Diourou and Papaya varieties is revealed for the grafts of the Ateudj, Kent and Papaya varieties. Indeed, the grafts gave high survival rates: 80.88% for Ateudj and 79.10% for Kent, 76.19% for Papaye. In terms of growth, the Sierra Leone rootstock gives the best growth rates (Ateudj graft (67.26% ±4.77) and Kent graft (52.95% ±11.44)). On the other hand, the Papaya scion grows more if it is supported by the Diourou rootstock with a growth rate (71.71% ±8.25).