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

Abstract

The aim of this study was to characterize the quality of peach fruits Jarillo cv., produced under the conditions of altitude tropical climate in three locations: Pamplona, Chitagá and Pamplonita, in Northern Santander, Colombia. Ten trees were sampled by the conditioned latin hypercube method and eight growing fruits with physiological state of maturity were selected. By means of a profile analysis, the hypotheses of parallelism, coincidence and horizontality of quality variables in the complete measurement interval were tested, and in some segments of the interval, some patterns from the graphic point of view were found. A radial diagram was made to study the development of fruit color at each thermal level. When the quotient between longitudinal diameter and equatorial diameter tends to 1 to the left, the highest weight values are reached, highlighting the lowest elevation level, with weights around 150 g. The profile analysis showed, regarding quality variables, that there was a significant interaction between evaluation time and altitude level. The results show that the prevailing climatic conditions affect the physicochemical characteristics of fruits during the growth process until maturation.

Qualidade físico-química de ameixas ‘Letícia’ produzidas sobre porta-externos clonais e em plantas autoenraizadas, no meio-oeste de Santa Catarina

“…Santa Rosa que teve menor resultado em 2020. A firmeza dos frutos é medida por penetrômetro, que torna possível medir a resistência dos tecidos à compressão, e é considerado como principal atributo utilizado para estimar a vida útil de frutos, pois do ponto de vista prático, representa seu grau de resistência à movimentação, a danos e ao desenvolvimento de microrganismos (CREMASCO et al 2016;GARCÍA et al 2018). ARGENTA et al (2003) citam que a taxa de firmeza de 9 N em ameixas já é considerada própria para consumo, o que demonstra que os frutos avaliados estavam aptos ao consumo no momento da colheita.…”

Development of an artificial neural network as a tool for predicting the chemical attributes of fresh peach fruits

“…Fruit weight is a vital feature in quality evaluation [36], and it can impact consumer acceptance, yield, and processing [37]. In addition, it is considered a quantitative factor that defines production, fruit quality and consumer acceptability, as supported in the work of [7], and it is related to the physiology of preach trees [4]. The weights of the investigated peach cultivars varied from 109.72 to 146.21 g (Table 1).…”

“…However, planting location, cultivar, stage of maturity, and climatic conditions influence fruit composition [3]. For peaches that are consumed fresh, fruit size is an important attribute of quality [4] since it is a requisite required by the consumer [5]. Additionally, the quality attributes that are most significant in fruits include the total soluble solids (TSS), color, titratable acidity, firmness, and TSS/titratable acidity [6][7][8].…”