Características físico-químicas de cultivares de macieiras pouco exigentes em frio

Oliveira, Dili Luiza de; Alvarenga, Ângelo Albérico; Gonçalves, Emerson Dias; Malta, Marcelo Ribeiro

doi:10.1590/s0034-737x2014000200018

Cited by 2 publications

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“…Similar results were found by Oliveira et al (2014), who evaluated eight apple cultivars that require short time of cold weather. On the other hand, some studies on mild winter regions showed higher FW means for the cultivar Princesa, differing from the results in the present study (SANTOS et al, 2010;(CHAGAS et al, 2012).…”

Section: Resultssupporting

confidence: 84%

Quality of Irrigated Apples in the Semiarid Region of the Northeast of Brazil

et al. 2017

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-The great solar radiation in the Brazilian semiarid region, combined with an adequate irrigation management, favors fruit production and quality of crops that were adapted to this region. The objective of this work was to evaluate the fruit quality of two apple cultivars grown in the Sub-Mid São Francisco River Valley under different irrigation water depths. A complete randomized block experimental design in a split-plot arrangement with five replications was used. The plots consisted of four irrigation water depths (ID) (60, 80, 100 and 120% of the reference evapotranspiration -ETo), the subplots consisted of two apple cultivars (C) (Julieta and Princesa) and the sub-subplots consisted of fruit positions in the tree canopies (FP) (east and west sides). The soluble solids content (SS), titratable acidity (TA), SS/TA ratio, pulp firmness (PF) and fresh weight (FW) of the fruits were evaluated. The factors evaluated showed no triple interaction between the evaluated factors, however, the SS and TA were significantly affected by them; the interaction between ID and C significantly affected the PF; the interaction between ID and FP significantly affected the PF, SS/TA ratio and FW; and the interaction between C and FP significantly affected the SS/TA ratio. The increase in water depth increased the fruit size of both cultivars, without compromising the post-harvest quality. The cultivar Princesa presented the best results regarding SS, TA, PF and FW, however, both cultivars had organoleptic characteristics within the recommended standards for commercialization. The fruits harvested on the west side presented better post-harvest quality.Keywords: Water regimen. Malus domestica Borkh. Post-harvest. QUALIDADE DOS FRUTOS DE MACIEIRAS IRRIGADAS NO SEMIÁRIDO NORDESTINORESUMO -A elevada radiação associada ao manejo adequado da irrigação no semiárido brasileiro favorece o aumento da produção e a qualidade dos frutos de culturas adaptadas a região. O objetivo deste trabalho foi avaliar a qualidade dos frutos de duas variedades de maçãs cultivadas na região do Vale Submédio do Rio São Francisco sobre diferentes lâminas de irrigação. O delineamento experimental foi em blocos ao acaso, com parcelas subsubdivididas, com cinco repetições, sendo as parcelas principais quatro lâminas de irrigação (60; 80; 100; e 120 % da evapotranspiração de referência -ETo), as subparcelas duas cultivares de maçã (Julieta e Princesa) e as subsubparcelas as posições da copa da planta (leste e oeste). Avaliou-se o teor de sólidos solúveis (SS), a acidez titulável (AT), a relação entre SS/AT, a firmeza de polpa (FP) e a massa de matéria fresca do fruto (MMFF). Não se observou interação tripla entre os fatores avaliados, mas houve um efeito significativo das características SS e AT, da interação entre lâminas e cultivares para FP, da interação entre lâminas e posição para FP, razão de SS/AT e MMFF e da interação entre cultivares e posição para relação SS/AT. O aumento da irrigação promoveu aumento do tamanho dos frutos, das duas cultivares, ...

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Section: Resultssupporting

confidence: 84%

Quality of Irrigated Apples in the Semiarid Region of the Northeast of Brazil

et al. 2017

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Adaptability and stability of peach and nectarine cultivars in subtropical climate

et al. 2017

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Information on adaptability and stability of fruit production in different environments or years is crucial to increasing agricultural production potential. Therefore, the objective of this study was to evaluate whether there is interaction between cultivars and years, as well as to assess the stability of peach and nectarine cultivars regarding fruit fresh mass, SS/TA ratio, and cycle length in Viçosa -MG, Brazil. The characteristics fruit fresh mass (FM), soluble solids/titratable acidity ratio (SS/TA), and cycle length (CL) were evaluated in 28 cultivars of peach and two cultivars of nectarine from the orchard of the Universidade Federal de Viçosa, in 2011, 2012, and 2013. The methods used to determine the phenotypic stability across time were Eberhart & Russell (1966) and the Traditional. The interaction cultivars x years was significant for all traits. Cultivar ‘Josefina’ showed broad adaptability for SS/TA ratio, and cultivars ‘Flordaprince’ and ‘Tropical’ for cycle length. For favorable environments, the cultivars ‘Capdebosq’ and ‘Maciel’ are indicated regarding the characteristic fruit mass, and ‘Coral’ and ‘Talismã’ for SS/TA ratio. ‘Rubimel’ was adaptable to unfavorable environments regarding fruit mass.

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Características físico-químicas de cultivares de macieiras pouco exigentes em frio

Cited by 2 publications

References 1 publication

Quality of Irrigated Apples in the Semiarid Region of the Northeast of Brazil

Quality of Irrigated Apples in the Semiarid Region of the Northeast of Brazil

Adaptability and stability of peach and nectarine cultivars in subtropical climate

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