Quality of watermelon fruits under different doses of nitrogen fertilization

• Autor(a) principal: Anjos, Rodrigo Afonso dos
• Data de Publicação: 2022
• Outros Autores: Santos, Mateus Aparecido Rodrigues, Oliveira Júnior, Manoel Xavier de, Bezerra Neto, Francisco Valdevino, Amaral, Alisson Macendo, Santos, Maria Ângela Cruz Macêdo dos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/25993
• topic: Cucurbits; Soluble solids; Titratable acidity; Nitrogen.; Cucurbitáceas; Sólidos solubles; Acidez valorable; Nitrógeno.; Cucurbitácea; Sólidos Solúveis; Acidez Titulável; Nitrogênio.

The objective of this work was to analyze the effect of nitrogen application on the fruit quality components of "granada" watermelon. For this, an experiment was carried out at Farm Extrema, located in the municipality of Arinos, state of Minas Gerais, from September to December 2018. The experimental design was a completely randomized block with five treatments and four replications. The treatments consisted of five levels of nitrogen fertilization: 0, 40, 80, 160 and 320 kg ha-1 of N. Fruit analyzes were carried out at the Chemistry laboratory of the Federal Institute of Education, Science and Technology of Minas Gerais - Campus Arinos. Physicochemical tests were performed to determine total soluble solids (° Brix), pH, titratable acidity (TA) and shell thickness. Nitrogen fertilization had a significant effect on the analyzed variables, except the pH of the fruits. The highest soluble solids content (8.27 °Brix) was obtained at the level of 171.7 kg ha-1 of N. For TA and bark thickness, significant linear models were adjusted (p <0.01).