Work

Effects of N and K Fertilization on Internal and External Fruit Quality of Three Major Florida Orange Cultivars1

Year: 1975

Type: article

Abstract: This is a report of a 4 × 4 NK factorial experiment over a 6-year period using ‘Hamlin’, ‘Pineapple,’ and ‘Valencia’ orange trees [ Citrus sinensis (L.) Osbeck] on rough lemon rootstock ( Citrus jambhiri Lush.) planted on Astatula f.s., formerly classified Lakeland f.s. Main effects of N and K were considered independently because interactions were not significant for most measurements. Increases in N rate increased the juice content and acid, whereas increases in K resulted in higher acid and lower soluble solids with an accompanying lower soluble solids/acid ratio. Smaller sized fruit, more green fruit, and a lower packout were a result of increased N rates. Increased K rates did not influence external characteristics of the fruit other than producing larger fruit. Rind blemishes occurred more often at the low N rate and diminished as the N rate increased. Incidence of decay in storage was greatest at the lowest N rate. Creasing was found to be significantly related to high N and low K rates.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.100.4.425

Authors: R. L. Reese, R. C. J. Koo

Institutions: University of Florida, Institute of Food and Agricultural Sciences

Language: English

Topic: Plant Physiology and Cultivation Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $3,500