Physicochemical and functional characteristics of peach cv. Esmeralda fertilized with different doses of nitrogen
DOI:
https://doi.org/10.14295/cs.v15.3565Resumo
The aim of this study was to evaluate the physicochemical and functional characteristics of fruits yielded by
peach trees which were fertilized with different doses of nitrogen. The experiment, which was installed in 2014.
It had a randomized complete block design with four replicates. The nitrogen rates applied were 0, 40, 80,
120, and 160 kg N per hectare. Fruits were harvested in four crops in a row (2014, 2015, 2016, and 2017). The
parameters were evaluated: soluble solids, pH, titratable acidity, epidermis and pulp firmness, attributes of pulp
color, carotenoids, phenolic compounds, and antioxidant activity. Responses were only related to luminosity in
the first crop. However, N fertilization influenced not only the soluble solid content, pH and chroma in the second
crop but also all attributes of color in the third crop. SS, pH, ºHue and chroma differed among treatments in
the fourth crop. The more N in the first three crops, the more carotenoids. Phenolic compounds decreased
significantly in the 2016 crop whereas antioxidant activity diminished in both the 2015 and 2016 crops. Even
though an ideal dose of N cannot be recommended due to high variation in attributes in the years under
evaluation, it is needed because of other factors, such as weat her.
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Copyright (c) 2024 Renan Navroski, Caroline Farias Barreto, Rufino Fernando Flores Cantillano, Márcia Vizzotto, Gilberto Nava
Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial 4.0 International License.
A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua, respeitando, porém, o estilo dos autores. As provas finais serão enviadas aos autores. Os trabalhos publicados passam a ser propriedade da revista Comunicata Scientiae, ficando sua reimpressão total ou parcial, sujeita à autorização expressa da direção do periódico. Deve ser consignada a fonte de publicação original. Os originais não serão evolvidos aos autores. As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.
