DESEMPENHO AGRONÔMICO DE CULTIVARES DE BANANA SOB DIFERENTES REPOSIÇÕES HÍDRICAS NO CERRADO

Abstract

The general goal of this research was to evaluate banana trees variety, which were submitted to different water replenishments, in light of this was used a drip irrigation system, in the Federal District area. The experiment took place at the Brasília University farm named Água Limpa, in Brasília. The experimental lineation was completely randomized block. It was subdivided in plots. Thus the plots were formed by five water replenishments and the subplots were divided into four genotypes. This process was made in order to evaluate the banana trees variety agronomic performance under different water replenishments, it was considered that, with a 4 L h -1 flow rate it was used a 252.8 mm total water blade, with a 8 L h-1 flow rate it was used a 398.2 mm total water blade, with a 16 L h-1 flow rate it was used a 688.8 mm total water blade, with a 24 L h-1 flow rate it was used a 979,5 total water blade, with a 32 L h-1 flow rate it was used a 1270.2 mm total water blade, with four replicates. It was appraised characteristics such as bunch weight, number of cluster per bunch, number of fruit per bunch, number of fruit per cluster, average weight per fruit, weight bunch, total productivity, estimated yield per hectare, length and diameter fruit. When is considering the five water replenishments, it was observed that the characteristics like bunch, number of fruits per bunch, average fruit weight, cluster weight, total productivity, estimated productivity per hectare, the banana length and diameter showed significant differences in variance analysis. When is considering the four genotypes analyzed it was possible to verify statistical differences in analysis variance, except number of fruits per cluster and diameter of the fruit. It was possible to verified the interaction between water blade and genotypes only for the average fruit weight trait. The type of Grand Naine and BRS Conquista stood out from the others with high yields. The water replenishment of 688.8 mm showed the best agronomic performance for the banana crop. And the type of Grand Naine was the one that showed the best agronomic performance.