Fruiting, physical fruit characteristics and productivity of peach tree cultivars and selections in Vista Alegre do Alto, S?o Paulo State, Brazil

摘要

> size="2" face="Verdana, Arial, Helvetica, sans-serif">The Jaboticabal Micro-region, located in São Paulo State, Brazil, considered unsuitable for peach tree culture, presents important comparative advantages in relation to other traditional regions producing peach in Brazil, as the reduced frost incidence, low air relative humidity and hidric deficit between April and September, beyond precocious production possibility (August to October), which has remunerated satisfactorily the fruit growers. However, the research results are consistent only to 'Aurora-1' peach. Aiming to consolidate this Micro-region as a new peach production pole of high quality, the present research was conducted in Vista Alegre do Alto, São Paulo State, and had the objective to study the fruiting, physical fruit characteristics and productivity of 'Aurora-1' and 'Régis' cultivar, and 'Jab 484' and 'Jab 694' peach selections. With the evaluations carried through in 2nd and 3rd years after transplant (2005 and 2006 harvests), it was possible to conclude that: a) the fruiting of 'Régis' and 'Aurora-1' cultivars and 'Jab 484' and 'Jab 694' peach selections is satisfactory in normal climatic conditions in Vista Alegre do Alto, São Paulo State, Brazil; b) 'Régis' peach tree presents production and productivity equivalent to 'Aurora-1', becoming an option for ultraprecocious production of double purpose fruits, despite its fruits being smaller and lighter than 'Aurora-1' peach, 'Jab 484' and 'Jab 694' peach selections; c) 'Jab 484' and 'Jab 694' peach selections present potential in Vista Alegre do Alto, São Paulo State, presenting fruits with double purpose characteristics, being heavier than 'Aurora-1' peach, being able to reach production and productivity equivalent to this cultivar.