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Promotion and inhibition by ethylene of chlorophyll degradation in orange fruits
Author(s) -
KNEE M.,
TSANTILI ELENI,
HATFIELD S. G. S.
Publication year - 1988
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1988.tb03289.x
Subject(s) - ethylene , orange (colour) , chlorophyll , citrus × sinensis , biology , chlorophyll a , horticulture , botany , biochemistry , catalysis
SUMMARY The effect of ethylene concentration on chlorophyll destruction in orange ( Citrus sinensis cV. Washington Navel) fruits was examined at 15 °C and 25 °C. The reflectance of the fruits at 680 nm was measured, and the results converted to chlorophyll concentrations through an empirically derived formula based on the Kubelka‐Munk equation. In all ethylene treatments chlorophyll destruction was faster at 25 °C than at 15 °C and all ethylene concentrations tested increased the rate of loss at 25 °C. At 15 °C the highest rate of chlorophyll destruction was observed at 1 μl litre ‐1 ethylene, while chlorophyll loss at 1250 μl litre ‐1 was slower than in untreated fruits.