Cocoa agroforest remained the main cultivated agroforest in West Africa. This study examined the effects of shading regime, soil depth and soil texture on the growth of immature cocoa trees. A field experiment was conducted during one year in forest zone in Togo and data was collected in twelve cocoa orchards established in June - July 2014. Three equal size plots (12 x 10 m²) were randomly located in each orchard, where agronomic variables and soil samples were collected. The results showed that, more the shading regime was dense (p<0.05) more the young cocoa trees crown were developed, more the crown radius were extended and less the cocoa trees died. When the orchard soil was deeper (p<0.05), better the cocoa trees used rainwater and more quickly they were developed. The cocoa trees mortality rate was less when the soil texture was sandy-loam (p<0.05) and more numerous were the crowns formed. The optimum condition for immature cocoa trees growth was an agroecosystem who meet a sandy-loam soils, deep more than one meter and covering by a shading trees which prevent from 75-100% of sunlight.
Prof. Dr. Bilal BİLGİN