Hail nets do not affect the efficacy of metamitron for chemical thinning of apple trees

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dc.contributor.authorGonzalez, Luis
dc.contributor.authorÀvila, Gloria
dc.contributor.authorCarbó, J.
dc.contributor.authorBonany, Joan
dc.contributor.authorAlegre Castellví, Simó
dc.contributor.authorTorres Lezcano, Estanis
dc.contributor.authorMartín, Begoña
dc.contributor.authorRecasens Guinjuan, Inmaculada
dc.contributor.authorAsin Jones, Luis
dc.date.accessioned2021-03-18T07:31:11Z
dc.date.available2021-03-18T07:31:11Z
dc.date.issued2019-06-19
dc.description.abstractHail nets reduce photosynthetically active radiation (PAR) and alter the environment under the netting in apple orchards. Thus, we investigated the effect of nets on the efficacy of metamitron, a short-term photosynthesis inhibitor used for fruit thinning. The objective of this study was to evaluate the effect of the netting and metamitron on thinning efficacy, yield, fruit quality and chlorophyll fluorescence in three apple (Malus domestica Borkh.) cultivars. One or two metamitron applications at different doses or rates were applied the tree under different coloured nets. The reduction of PAR was highest with black nets (19%-22%), followed by green (13%-15%) and white nets (6%-11%). There were no significant differences (P> 0.05) in fruit weight or size with or without nets. Double applications of metamitron increased average fruit fresh weight and reduced the fruit set over four experiments. In contrast, single applications were less effective. In two experiments, thinning was associated with lower yields. However, there was no effect in the other two experiments. The double treatments tended to increase the percentage of the crop with fruit larger than 70 mm in diameter. All thinning strategies showed similar inhibition in fluorescence, with the only observed significant differences between treatments occurring when using a single or double application. The results show that netting does not affect the response to thinning with metamitron.ca_ES
dc.description.sponsorshipThis study was supported financially by project INIA (RTA2012-00116-00-00) in collaboration with ADAMA-Spain.ca_ES
dc.identifier.doihttps://doi.org/10.1080/14620316.2019.1631128
dc.identifier.issn2380-4084
dc.identifier.urihttp://hdl.handle.net/10459.1/70786
dc.language.isoengca_ES
dc.publisherThe Journal of Horticultural Science & Biotechnology Trustca_ES
dc.publisherTaylor and Francisca_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO//RTA2012-00116-00-00/ES/Metamitrona, una nueva herramienta para optimizar el aclareo químico en frutales/ca_ES
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1080/14620316.2019.1631128ca_ES
dc.relation.ispartofJournal of Horticultural Science and Biotechnology, 2020, vol. 95, núm. 1, p. 128-135ca_ES
dc.rights(c) The Journal of Horticultural Science & Biotechnology Trust, 2019ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.subjectFluorescenceca_ES
dc.subjectQuantum yieldca_ES
dc.subjectRadiationca_ES
dc.subjectNettingca_ES
dc.titleHail nets do not affect the efficacy of metamitron for chemical thinning of apple treesca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersionca_ES
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