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Influence of regulated deficit irrigation strategies applied to olive trees ( Arbequina cultivar) on oil yield and oil composition during the fruit ripening period
Author(s) -
Motilva M José,
Tovar M Jesús,
Romero M Paz,
Alegre Simón,
Girona Joan
Publication year - 2000
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/1097-0010(200011)80:14<2037::aid-jsfa733>3.0.co;2-0
Subject(s) - ripening , deficit irrigation , composition (language) , polyphenol , cultivar , irrigation , chemistry , horticulture , yield (engineering) , olive trees , chemical composition , botany , agronomy , food science , biology , antioxidant , irrigation management , biochemistry , linguistics , philosophy , materials science , metallurgy , organic chemistry
This study evaluated the effect of regulated deficit irrigation (RDI) strategies applied to olive trees ( Arbequina cv) during the fruit ripening and harvest periods on oil yield and oil composition. Fatty acid composition, pigments, colour, polyphenol content and stability of oils were evaluated. The results indicate that regulated deficit irrigation induces fruit ripening; at harvest, oil yield increased when water supply was decreased, probably as a consequence of lower water content in the olive. Acidic composition was not affected by irrigation treatments. Irrigation affected pigment content and oil colour primarily during the early stages of olive ripening. RDI increased polyphenol concentration and stability of oils at all picking dates, especially during the first stages of the ripening period, probably owing to water stress. © 2000 Society of Chemical Industry