Post-harvest fruit characteristics of different banana (Musa spp.) genotypes

The knowledge of the post-harvest characteristics of new banana hybrids is an important information that helps the breeder in making his decision. This work has the objective to evaluate banana genotypes in relation to their post-harvest characteristics and resistance to fruit drop. Fruits of the second hand of 16 hybrids (Calipso, Bucaneiro, Ambrosia, YB42-21, PV42-53, PV42-68, PV42-81, PV42-85, PV42-129, PV42-142, PV42-143, ST12-31, ST42-08, PV03-44, FHIA-03 and SH 3640) and four cultivars (Pacovan, Prata Comum, Nam and Figue Pomme Naine) were evaluated according to their weight, length, circumference, pulp/peel ratio, resistance to fruit drop, firmness, total soluble solids (TSS), total titratable acidity (TTA), TSS/TTA ratio and maturation period. A completely randomized experimental design was used, with five replications, except fruit firmness with ten replications, each unit was constituted by one fruit. The data were submitted to the analysis of variance and the means were compared by the Scott & Knott test at 5% of probability. The cultivar Nam had the lowest TTA and the highest TSS/TTA ratio, while the highest fruit firmness was observed in PV42-81 and PV42-53. The SH 3640 produced the heaviest fruits, and Bucaneiro and PV42-81 produced the longest ones. PV42-85 and ST42-08 showed high resistance to fruit drop, with no statistical difference from 'Pacovan'. 'Prata Comum' showed the lowest resistance. The genotypes ' Nam', PV42-143 and PV42-129 showed longer shelf life when compared to 'Prata Comum'. 'Nam' genotype can be considered as alternative in banana production. SH3640 the Prata dwarf hybrid, might be considered as a new cultivar. Hybrids from Prata São Tomé (ST42-08) and from Pacovan (PV42-68, PV42-81, PV42-85, PV42-129 e PV42-143) can replace Prata Comum and Pacovan in the banana production system.

Plant breeding; hybrids; triploids; tetraploids; evaluation; fruit quality; fruit drop

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