Qualidade de nectarinas produzidas em região de clima subtropical

Abstract

ComunicaçãoQualidade de nectarinas produzidas em região de clima subtropical 1 Os frutos de nectarineiras geralmente apresentam tamanho pequeno, polpa firme, aroma e sabor bem acentuados. O conhecimento dos cultivares disponíveis, em relação a sua qualidade, bem como a sua adaptação aos locais de cultivo é extremamente importante, por possibilitar a escolha dos materiais com melhor potencial de mercado. Assim, este trabalho teve como objetivo avaliar os cultivares de nectarineira 'Josefina' e 'Rubro-Sol', cultivados sob condições de clima subtropical, em Viçosa, MG. Os experimentos foram realizados na Universidade Federal de Viçosa durante três safras e conduzidos em esquema de parcelas subdivididas, dentro do delineamento inteiramente casualizado. Foram colhidos 30 frutos de cada cultivar e avaliadas as características massa de fruto, diâmetros longitudinal e transversal, firmeza, teor de sólidos solúveis, acidez titulável e teores de ácido ascórbico e de carotenoides. Verificaram-se diferenças significativas entre as médias dos anos de avaliação quanto à firmeza e aos teores de ácido ascórbico e de carotenoides. O cultivar 'Rubro-Sol' destacou-se pela maior firmeza da polpa e o 'Josefina' pelo maior teor de sólidos solúveis e menor acidez titulável, com frutos mais doces. Palavras-chave:Prunus persica var. nucipersica, 'Josefina', 'Rubro-Sol', pós-colheita. Rosana Gonçalves Pires Quality of nectarines produced in a subtropical climate regionNectarines usually have small, firm flesh, good aroma and marked flavor. Knowledge on available cultivars in relation to quality as well as their adaptation to areas ofcultivation are extremely important as they allow the choice of materials with better market potential. Thus, the present study aimed to evaluate the nectarine cultivars 'Josefina' and 'Rubro-Sol' grown under subtropical conditions in Viçosa-MG. The experiments were carried out at the Universidade Federal de Viçosa for three seasons and conducted in split plots within the randomized design. Thirty fruits of each cultivar were harvested and the characteristics fruit weight, longitudinal and transverse diameters, firmness, soluble solids, titratable acidity and ascorbic acid contents and carotenoids were evaluated. There were significant differences between the means of years of evaluation for firmness and levels of ascorbic acid and carotenoids. The cultivar 'Rubro-sol' stood out for greater firmness and 'Josefina' by higher soluble solids and lower titratable acidity, with the sweetest fruits.

Quality of peach fruits Jarillo cv. (Prunus persica L.) in Pamplona, Colombia

“…Finally, for this thermal level, section 87-119 dad showed the lowest relative humidity and rainfall, both of which are located in the Catatumbo basin with bimodal rainfall regime. This characteristic is related to studies to evaluate quality and able to adopt measures of improvement, according to commercialization standards (MATIAS et al, 2015a).…”

“…Peach tree is one of the fruit trees commonly planted in altitude tropical areas, as it has advantages compared to those planted in temperate areas (MATIAS et al, 2015a;PINZÓN et al, 2014). It has been reported that peach varieties that grow in altitude American tropics are in many cases derived from trees such as the Jarillo variety in Pamplona that has been adapted by natural selection to the tropical climate.…”

“…Perhaps pulp firmness is the most notorious parameter and allows determining collection, quality and consumption patterns (MORAIS et al, 2017, CREMASCO et al, 2016, MATIAS et al, 2015a. The physicochemical characteristics of fruits are influenced by the climatic conditions of the production area and vary according to altitude (REGINA et al, 2010), temperature (GRUDA, 2005), rainfall (GALINDO et al, 2014 and relative humidity (GARIGLIO et al, 2007).…”

Adaptability and stability of peach and nectarine cultivars in subtropical climate

“…Little is known about the performance of fruit traits and production of peach over the years, since studies on this crop have had other approaches (Matias et al, 2011;Matias et al, 2015, Matias et al, 2016. The adaptability and stability of peach genotypes were evaluated for bud sprouting (Scariotto et al, 2013), fruiting and yield (Citadin et al, 2014) in subtropical Brazilian sites, and yield and quality stability in agroecological conditions in Belgrade, Serbia (Rakonjac & •ivanoviae, 2008).…”