Autoria: LIMA, M. A. C. de; BASSOI, L. H.; SILVA, D. J.; SANTOS, P. de S.; PAES, P. de C.; RIBEIRO, P. R. de A.; DANTAS, B. F.

Resumo: Yield and physical and chemical characteristics of 'Paluma' guava fruit were evaluated as a function of the harvest at different maturity stages, under influence of nitrogen and potassium fertilization, in Petrolina, State of Pernambuco, Brazil. Fertilizer rates were 67 kg N + 33 kg K2O, 133 kg N + 67 kg K2O, 200 kg N + 100 kg K2O and 267 kg N + 133 kg K2O per hectare. Fruits were evaluated at maturity stages 2, 3, 4 and 5, established according to peel color. Higher doses of N and K induced higher yields. Nevertheless, fertilization with 200 kg of N + 100 kg of K per hectare improved fruit quality, delaying ascorbic acid breakdown and conserving pulp firmness. Main changes took place at maturity stages 4 and 5, when the fruit should present ideal conditions for consumption, namely the increase on soluble solids and soluble sugars content.

Ano de publicação: 2008

Tipo de publicação: Artigo de periódico

Unidade: Embrapa Semiárido

Palavras-chave: Característica química-fisica, Goaba, Goiaba, Guava, Maturação, Maturity stages, Nutrição, Paluma, Produção, Psidium guajava L, Qualidade, Vale do São Francisco, Variedade, fruit quality, nutrition