Resumo

CARDENAS-NAVARRO, Raúl; LOPEZ-PEREZ, Luis  e  LOBIT, Philippe. Effect of the N application season and harvest period on the production and quality of strawberry fruits (Fragaria x ananassa Duch). Scientia Agropecuaria [online]. 2019, vol.10, n.3, pp.337-345. ISSN 2077-9917.  http://dx.doi.org/10.17268/sci.agropecu.2019.03.03.

In this work the effect of the N fertilizer application season and the harvest period on the production and quality of strawberry fruits was evaluated. Strawberries cv 'Camino real' were planted an experimental plot in Morelia, Mexico under open field conditions. 5 mM of N was applied in the irrigation in different physiological stages of the crop: vegetative growth (E1), between the end of the first fruiting and the beginning of the second flowering (E2) without nitrogen (E3), during period from harvest. The red fruits of each plant were harvested and the production and quality parameters were evaluated. It was found that, the N application season modified the production, as the applications were later or N was not applied, the fruits decreased. The harvest period had an effect on the variables of production and fruit quality. The differences found in the different harvest periods were highly correlated with the climatic conditions. The acidity, total phenols concentration and total soluble solids were correlated positively with solar radiation and temperature. The concentration of anthocyanins was modified by both factors evaluated; which could be nutritionally benefic.

Palavras-chave : climatic conditions; yield; soluble solid content total phenol; anthocyanin.

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