alexa Influence of deficit irrigation strategies on fatty acid and tocopherol concentration of almond (Prunus dulcis).


Journal of Food Processing & Technology

Author(s): Zhu Y, Taylor C, Sommer K, Wilkinson K, Wirthensohn M

Abstract Share this page

Abstract The effects of deficit irrigation on almond fatty acid and tocopherol levels were studied in a field trial. Mature almond trees were subjected to three levels of deficit irrigation (85\%, 70\% and 55\% of potential crop evapotranspiration (ETo), as well as control (100\% ETo) and over-irrigation (120\% ETo) treatments. Two deficit irrigation strategies were employed: regulated deficit irrigation (RDI) and sustained deficit irrigation (SDI). Moderate deficit irrigation (85\% RDI and 85\% SDI) had no detrimental impact on almond kernel lipid content, but severe and extreme deficiencies (70\% and 55\%) influenced lipid content. Unsaturated fatty acid (USFA) and saturated fatty acid (SFA) contents fluctuated under these treatments, the oleic/linoleic ratio increased under moderate water deficiency, but decreased under severe and extreme water deficiency. Almond tocopherols concentration was relatively stable under deficit irrigation. The variation between years indicated climate has an effect on almond fruit development. In conclusion it is feasible to irrigate almond trees using less water than the normal requirement, without significant loss of kernel quality. Copyright © 2014 Elsevier Ltd. All rights reserved. This article was published in Food Chem and referenced in Journal of Food Processing & Technology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version