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Abstract
Arsenic (As) and lead (Pb) sprays applied to grapefruit (Citrus paradisi Macfad.) accelerate fruit maturity but do not contribute to the As and Pb content of the peel oil. The physicochemical properties of the expressed oils are influenced by this induced maturity but would occur naturally in the course of normal fruit maturation.
Abstract
An N rate associated with reduced fruit production substantially reduced the quantity of peel oil on a per metric ton (MT) of fruit basis and the yield of oil on a per hectare basis of ‘Pineapple’ orange (Citrus sinensis (L.) Osbeck) K had no significant effect on the peel oil content on a per ha basis, but did increase fruit production (MT/ha) and reduced the peel of oil content.
Abstract
Volatile compounds were extracted from juices expressed from non-irradiated and irradiated ‘Valencia’ oranges. Gas chromatographic analyses of the recovered volatile compounds, at 3 stages of maturity, indicated some quantitative but few qualitative differences between the irradiated and non-irradiated fruits. These differences diminished as the fruit advanced in maturity.