Accelerating abscission of macadamia nuts using ethephon: are there implications for nut quality?

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dc.contributor.authorAruwajoye, Noluthando Noxolo
dc.contributor.authorOlarewaju, Olaoluwa Omoniyi
dc.contributor.authorOluwalana-Sanusi, Abimbola E.
dc.contributor.authorMditshwa, Asanda
dc.contributor.authorMagwaza, Lembe Samukelo
dc.contributor.authorTesfay, Samson Zeray
dc.date.accessioned2024-12-20T14:30:22Z
dc.date.available2024-12-20T14:30:22Z
dc.date.freetoread2024-12-20
dc.date.issued2025-03
dc.date.pubOnline2024-12-08
dc.description.abstractMacadamia is a valuable nut due to its high content of healthy monounsaturated fats, dietary fibre, antioxidants, and essential minerals such as magnesium-B and potassium. One of the major issues affecting industries around the globe is the delayed nut abscission and a prolonged and expensive harvest. A delay in harvesting also reduces the quality of the kernel. To address this challenge, ethephon is used to accelerate abscission, helping to prevent delays in harvesting. Ethephon can cause up to a 15-fold increase in nut abscission within 4 weeks compared to untreated trees. We provide a brief overview of the use of ethephon and its effects on nut quality. The major side-effects of ethephon used to manage macadamia harvesting are associated with ethylene, which is released from ethephon during the acceleration of plant senescence. This process impacts nut quality and shelf life by modulating lipid composition and nut biochemistry. Additionally, ethephon influences the appearance of the nut and the expression and regulation of specific plant genes. This review bridges the information gap between the application of ethephon for harvesting and its effects on the nut quality.
dc.description.journalNameThe Journal of Horticultural Science and Biotechnology
dc.description.sponsorshipNational Research Foundation, Neurosciences Research Foundation
dc.description.sponsorshipThis work was funded by the National Research Foundation (NRF) of South Africa [Grant Number 142060].
dc.format.extentpp. 153-163
dc.identifier.citationAruwajoye NN, Olarewaju OO, Oluwalana-Sanusi AE, et al., (2025) Accelerating abscission of macadamia nuts using ethephon: are there implications for nut quality?. The Journal of Horticultural Science and Biotechnology, Volume 100, Issue 2, March 2025, pp. 153-163en_UK
dc.identifier.eissn2380-4084
dc.identifier.elementsID560606
dc.identifier.issn1462-0316
dc.identifier.issueNo2
dc.identifier.urihttps://doi.org/10.1080/14620316.2024.2434614
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23297
dc.identifier.volumeNo100
dc.languageEnglish
dc.language.isoen
dc.publisherTaylor and Francisen_UK
dc.publisher.urihttps://www.tandfonline.com/doi/full/10.1080/14620316.2024.2434614
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject30 Agricultural, Veterinary and Food Sciencesen_UK
dc.subject3008 Horticultural Productionen_UK
dc.subjectPreventionen_UK
dc.subjectNutritionen_UK
dc.subjectBiotechnologyen_UK
dc.subject3001 Agricultural biotechnologyen_UK
dc.subject3108 Plant biologyen_UK
dc.titleAccelerating abscission of macadamia nuts using ethephon: are there implications for nut quality?en_UK
dc.typeArticle
dcterms.dateAccepted2024-11-01

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