Produtividade e qualidade de frutos da laranja pêra CNPMF-D6 em diferentes porta - enxertos no Cerrado amapaense

Abstract

The Cerrado in Amapá, despite its limitations, has significant agricultural potential. Genetic improvement emerges as an essential solution, developing cultivars adapted to adverse conditions. Varieties such as 'Pêra CNPMF D6' stand out for their high productivity and disease resistance. These innovations have the potential to transform agriculture in Amapá, promoting sustainability and local development. This study evaluated the performance of different rootstock genotypes grafted onto the 'Pêra CNPMF-D6' orange scion variety, aiming to identify combinations that promote high productivity and fruit quality in Amapá. The experiment was conducted in randomized blocks with 14 treatments (rootstocks) and four replications, spanning three consecutive harvests (2022 to 2024). Variables such as canopy volume (VOL), number of fruits per plant (NF), fruit weight (MF), juice weight (MS), soluble solids (BRIX), production per plant (PROD), juice yield per plant (RSP), and juice production per plant (PSP) were analyzed using the Scott-Knott test at 5% significance. The results indicated significant differences among genotypes and harvests. The specific conditions of each harvest significantly influenced performance, reinforcing the importance of genotype x environment interaction. The rootstocks that stood out for providing higher productivity and fruit quality for the 'Pêra CNPMF D6' orange were BRS N. Gimenes Fernandes, BRS Matta, and BRS Donadio. On the other hand, genotypes such as HTR - 069, BRS S Moreira, and BRS Cunha Sobrinho showed inferior performance.