Caracterização da curva de maturação de pêssegos 'Aurora-1', na região de Jaboticabal-SP

Cunha, Luís Carlos; Durigan, M. F. B.; Mattiuz, Ben-Hur; Martins, Ramilo Nogueira; Durigan, José Fernando

doi:10.1590/s0100-29452007000300045

Cited by 15 publications

(9 citation statements)

References 5 publications

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“…A separação dos lotes, em "de vez" e maduro, deu-se pela tomada do ângulo de cor "de fundo" (Hue) dos pêssegos, sendo considerado "de vez" os valores entre 98-110º e maduro entre 90-110º, como descrito por Cunha Junior et al (2007).…”

Section: Methodsunclassified

Conservação de pêssego 'Aurora-1' armazenados sob refrigeração

Cunha¹,

Durigan

Mattiuz

2010

Rev. Bras. Frutic.

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RESUMO -Avaliou-se o comportamento pós-colheita de pêssegos da cv. Aurora-1 armazenados sob refrigeração. Os frutos foram colhidos em dois estádios de maturação, verde maduro (de vez) e maduro. Os lotes foram armazenados em três temperaturas (2°C; 6°C e 12°C), por 35 dias, e avaliados a cada sete dias: quanto à coloração da casca, perda acumulada de massa fresca (PMF), firmeza (FIR), aparência, teores de acidez titulável (AT), sólidos solúveis (SS), açúcares solúveis (AS) e redutores (AR), pectina solúvel (PS) e total (PT), além da porcentagem de solubilização de pectinas (SOL). A menor temperatura de armazenamento elevou o tempo de prateleira dos pêssegos, e os frutos "de vez" apresentaram melhor aparência. A PMF demonstrou um gradiente em função do aumento da temperatura, e os frutos "de vez" apresentaram menor perda ao final do armazenamento sob todas as temperaturas, quando comparados aos maduros. A coloração da casca dos frutos "de vez", a 2°C, teve pouca alteração, conferindo-lhes mudança de coloração de verdeamarelada para amarelo-clara; enquanto nas temperaturas de 6°C e 12°C esse gradiente foi mais intenso. O mesmo efeito foi verificado nos pêssegos maduros. A FIR sofreu efeito da temperatura, pois temperaturas menores sofreram redução mais lenta e AT dos pêssegos maduros foi superior aos "de vez". Não houve influência dos tratamentos nos teores de SS, AS e AR. Os pêssegos 'Aurora-1' não demonstraram sensibilidade ao frio, e os "de vez", armazenados a 2°C, tiveram vida útil de 35 dias. Termos para indexação: Prunus persica, ponto de colheita, armazenamento refrigerado. PRESERVATION OF 'AURORA-1' PEACHES STORED UNDER REFRIGERATIONABSTRACT -This work aimed to evaluate the postharvest of peaches cv. Aurora-1 stored under refrigeration. The fruit were harvested in two stages ("mature green" and ripe). The lots were stored at three temperatures (2°C, 6°C, and 12°C), for 35 days and evaluated every seven days for skin color, loss of fresh mass (PMF), firmness (FIR), appearance, titratable acidity (TA), soluble solids (SS), soluble sugar (AS) and reducers (AR), soluble (SP) and total (PT) pectin, and the percentage of pectin solubilization (SOL). The lower storage temperature gave the greatest shelf life and the fruit at mature green stage had better appearance. The PMF showed a gradient of weight loss due to the increase of temperature and the mature green fruit had smaller weight loss at the end of storage for all temperatures, compared to mature. The skin color of the fruit "mature green", stored at 2°C, had little change, from green-yellow to light yellow, while on temperatures at 6°C and 12°C this gradient was more intense. The same effect was found in ripe peaches. The FIR was affected by temperature, and the lowest temperature changed slowly. The AT for ripe peaches was higher for the mature green. There was no influence of treatments on the contents of SS, AS and AR. Peaches 'Aurora-1' showed no chilling injury symptoms and the ones harvested at mature green stage, when stored at 2°C had 35 days of she...

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Section: Methodsunclassified

Conservação de pêssego 'Aurora-1' armazenados sob refrigeração

Cunha¹,

Durigan

Mattiuz

2010

Rev. Bras. Frutic.

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“…São encontradas, na literatura, referências sobre o completo desenvolvimento de frutos de várias cultivares de pessegueiro em diferentes regiões de cultivo (ÁLVARES et al, 2004;CUNHA JÚNIOR et al, 2007;DELA BRUNA, 2007). No entanto, a duração de cada fase pode variar de acordo com a cultivar e as características ambientais, podendo o ciclo total estender-se de 60 a mais de 200 dias (BARBOSA et al, 1990a).…”

Section: F P Silva Et Alunclassified

Curva de crescimento e padrão respiratório de frutos de genótipos de pessegueiro em região de clima subtropical

Silva

Matias

et al. 2013

Rev. Bras. Frutic.

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RESUMO- GROWTH CURVE AND RESPIRATORY PATTERN OF GENOTYPES OF PEACH FRUIT IN SUBTROPICAL REGIONABSTRACT -The study aimed to determine the length of the cycle and characterize phases of the growth curve and the breathing pattern of peach genotypes grown in subtropical climate region. The experiment was conducted at the experimental orchard at the Universidade Federal de Viçosa (UFV) in Araponga-MG. It was selected ten genotypes from the breeding program at UFV where 50 fruits were collected biweekly from anthesis until full ripening. Samplings occurred from June to November 2011 and were evaluated diameters (polar, equatorial and sutural), fresh and dry weight (fruit, peel, pulp and seed) and CO 2 production. The growth pattern was sigmoidal double the interval between anthesis and harvest of 135 days for genotypes 803-10, 803-33, 803-55, 1603-51 e 5503-25, allowing classify them as medium cycle and of 180 days for genotypes 2903-1, 5003-46, 8503-6, 9103-1 e 9903-2, which was characterized as the long cycle. The fruit growth assessed had three growth stages: stage I, with exponential growth, stage II, with little growth, and stage III, with exponential growth culminating in fruit ripening. The CO 2 production decreased over time with the presence of peaks at certain times. At the end of the cycle climacteric peaks were observed. The final marked the beginning of climacteric fruit senescence, which coincided with its full ripening on the plant.

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“…There are few studies on the growth curve of peach fruits in different regions of Brazil in the literature [14][15][16]. Researchers in other countries observed that difference in fruit size between genotypes has a strong genetic influence and is broadly explained by differences in the total number of cells in the mesocarp [3,10,14]. Yamaguchi [10] reported a significant correlation between cell length and fruit size in a large number of peach cultivars, although cell number was the most stable indicator of size.…”

Section: Introductionmentioning

confidence: 99%

Influence of Temperature on the Development of Peach Fruit in a Subtropical Climate Region

et al. 2019

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Understanding the growing process and fruit size differences among peach cultivars is extremely important in the technological domain of the crop and can provide information to improve the proper crop management (thinning and harvesting seasons) and the crop breeding of fruits with a larger caliber. However, this information is still incipient in subtropical regions and requires further research, especially in Brazil. The aim of this study was to determine the influence of temperature on the growing of four peach cultivars (Tropical, Aurora-2, Ouro Mel-4, and Biuti) under subtropical conditions of field cultivation. Fruit development was determined every two weeks throughout the cycle with 30 fruits from previously identified branches from six different plants of each cultivar. Regarding the thermal accumulation in growing degree-days (GDD), the cultivar ‘Tropical’ showed the lowest agronomic fruit properties (size and mass) and required a lower GDD accumulation during the development stages of the fruits, whereas the cultivar ‘Biuti’ showed higher thermal requirements and higher agronomic properties. The number of cells had greater influence on the final fruit size than the cell area.

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Caracterização da curva de maturação de pêssegos 'Aurora-1', na região de Jaboticabal-SP

Cited by 15 publications

References 5 publications

Conservação de pêssego 'Aurora-1' armazenados sob refrigeração

Conservação de pêssego 'Aurora-1' armazenados sob refrigeração

Curva de crescimento e padrão respiratório de frutos de genótipos de pessegueiro em região de clima subtropical

Influence of Temperature on the Development of Peach Fruit in a Subtropical Climate Region

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