Productivity Performance of Musa AAA Under Diferents Planting Densities and Two Cultivars (Grand Nain and Williams) in Banana Intensive Agrosystems in the Agneby-Tiassa Region, Côte D'ivoire

The study was conducted on Agro-industrial farm of Brimbo, property of S.C.B, located in the Agneby-Tiassa region. The study aimed to contribute to the sustainable production of dessert bananas in Côte d’Ivoire through the development of new technical itineraries. The Grand Nain and Williams cultivars were planted in a block design with total randomisation, comprising eight treatments. During plant growth, the effect of density and cultivar on phytopathological parameters of Black Leaf Streak Disease and on growth and production parameters of the banana plant were evaluated. The results showed that planting density influenced the rank of YLS in both cultivars with the highest mean values at 1550 ; 1600 ; 1650 and 1700 plants/ha, with 7.0 ; 7.1 ; 7.0 ; 7.2 for Grand Nain and 7.2 ; 7.0 ; 7.1 ; 7.1 for Williams respectively. The height of the banana plants ranged from 216.9 to 227.1 cm in Grand Nain and from 228.6 to 237.0 cm in Williams. A significant difference was observed for the pseudotruncular circumference with values between 67.5 and 71.5 cm in the cultivar Grand Nain and between 70.6 and 75.5 cm in the cultivar Williams. NLF was significantly influenced by density and cultivar. The best bunch weights were obtained at 1900 plants/ha for Grand Nain and 22.6 kg for Williams at 1550 plants/ha. This study showed that the removal of immature lesion-bearing areas combined with planting density had varying effects on Black Leaf Streak Disease status, growth and productivity of banana plants of the Grand Nain and Williams cultivars.