Resumen

TREVISAN, Renato et al. Influence of white plastic, vegetative pruning and amino quelant-K on quality of peaches 'Santa Àurea'. Bragantia [online]. 2008, vol.67, n.1, pp. 243-247. ISSN 0006-8705.  http://dx.doi.org/10.1590/S0006-87052008000100029.

Fruit quality is influenced by climate, soil, cultivar, orchard management, time of harvesting and fruit handling at harvest and post harvest. One way of improving the fruit quality is through cultural practices. Thus, this work had the objective of evaluating the effect of the white plastic, vegetative pruning and aminoquelant®-K, alone or the combination of the last with plastic or summer pruning, on the quality of peaches cv. Santa Aurea. The quality attributes evaluated quality were: visual percentage of red on the fruit surface, intensity of red in the epidermis, determined by the CIEL*a*b * system, fruit mean weight, diameter and firmness, total soluble solids (TSS) content on the flesh, total titratable acidity (TTA) and the relation TSS/TTA. All the tested treatments increased the percentage of red on the fruit epidermis; the use of aminoquelant®-K, alone, resulted in greater acidity of the fruits; the best relation TSS/TTA was obtained by the use of the white plastic under the canopy and by the combination of that plastic with aminoquelant®-K.

Palabras llave : Prunus persica; green prunning; back ground color; aminoquelant®-K.