Articles
PHYSICOCHEMICAL CHARACTERISTICS OF PEACHES CULTIVAR ‘MACIEL’ REGARDING ROOTSTOCK
Article number
940_74
Pages
515 – 520
Language
English
Abstract
In horticulture, the use of rootstocks offers possibilities for increasing the adaptability of fruit species under different climate conditions, soil and cropping systems, but it is necessary to know their effect in relation to fruit quality.
The aim of this study was to evaluate the effect of Aldrighi, Capdeboscq, Flordaguard, Nemaguard, Okinawa and Umezeiro rootstocks on the peach quality of cultivar Maciel, at three localities with different characteristics in southern Brazil (Pelotas, Eldorado do Sul and Bento Gonçalves) in two years (2008 and 2009). The three experiments were established in 0.2 ha plots, with 1.5 m between plants and 5.0 m between lines spacing, arranged in a randomized block design with three replicates and five plants per elementary plot.
The parameters evaluated were soluble solids (SS), titratable acidity (TA), firmness (N). Data were submitted to analysis of variance and the averages compared by Tukey test.
In 2008, there was significant influence of rootstock on some peach quality parameters in Pelotas (firmness and acidity) and Bento Gonçalves (firmness), while no influence of rootstock was observed in Eldorado do Sul.
In 2009, significant differences were observed for soluble solids in Pelotas, for acidity in Eldorado do Sul just and for all the parameters evaluated in Bento Gonçalves.
In conclusion, the rootstock can affect some physical and chemical parameters, but the differences cannot be fully attributed to the direct effect of rootstock on fruit quality but also the interaction with the fruit ripening period and the characteristics of each region under study.
The aim of this study was to evaluate the effect of Aldrighi, Capdeboscq, Flordaguard, Nemaguard, Okinawa and Umezeiro rootstocks on the peach quality of cultivar Maciel, at three localities with different characteristics in southern Brazil (Pelotas, Eldorado do Sul and Bento Gonçalves) in two years (2008 and 2009). The three experiments were established in 0.2 ha plots, with 1.5 m between plants and 5.0 m between lines spacing, arranged in a randomized block design with three replicates and five plants per elementary plot.
The parameters evaluated were soluble solids (SS), titratable acidity (TA), firmness (N). Data were submitted to analysis of variance and the averages compared by Tukey test.
In 2008, there was significant influence of rootstock on some peach quality parameters in Pelotas (firmness and acidity) and Bento Gonçalves (firmness), while no influence of rootstock was observed in Eldorado do Sul.
In 2009, significant differences were observed for soluble solids in Pelotas, for acidity in Eldorado do Sul just and for all the parameters evaluated in Bento Gonçalves.
In conclusion, the rootstock can affect some physical and chemical parameters, but the differences cannot be fully attributed to the direct effect of rootstock on fruit quality but also the interaction with the fruit ripening period and the characteristics of each region under study.
Authors
J.C. Fachinello, D.L. Betemps, S.P. Galarça, A. Comiotto
Keywords
peach, fruit quality, maturation, acidity, soluble solids, firmness
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