Injurious effects of metsulfuron-methyl when used to stimulate abscission of 'Hamlin' oranges
Identifieur interne : 003128 ( Main/Exploration ); précédent : 003127; suivant : 003129Injurious effects of metsulfuron-methyl when used to stimulate abscission of 'Hamlin' oranges
Auteurs : W. J. Kender [États-Unis] ; U. Hartmond [États-Unis] ; M. Salyani [États-Unis] ; J. K. Burns [États-Unis] ; J. D. Whitney [États-Unis]Source :
- HortScience [ 0018-5345 ] ; 1999.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Fruit, Défoliation.
English descriptors
- KwdEn :
Abstract
A field experiment was conducted to determine effects of concentration and spray volume of metsulfuron-methyl as an abscission aid for mechanical harvesting of citrus. Concentrations of 1,2, and 4 mg.L-1 metsulfuron-methyl were applied to 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees at 470, 1900, and 4700 L.ha-1 (0.5 to 19 g.ha-1 a.i.). Effective fruit loosening was achieved with all applications >1.9 g.ha-1 (4 mg.L-1 at all volumes, 2 mg.L-1 at 1900 and 4700 L.ha-1, and 1 mg.L-1 at 4700 L.ha-1). Heavy defoliation and twig dieback were observed on trees receiving 2 and 4 mg.L-1 at all volumes. Defoliation and dieback became more severe and flower development and fruit set were inhibited as fruit loosening increased. The use of metsulfuron-methyl as an abscission agent for 'Hamlin' oranges is not recommended until conditions for its safe application can be determined. Chemical names used: methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl) amino] carbonyl] amino] sulfonyl] benzoate (metsulfuron-methyl).
Affiliations:
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J." last="Kender">W. J. Kender</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, 700 Experiment Station Road</s1><s2>Lake Alfred, FL 33850-2299</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Hartmond, U" sort="Hartmond, U" uniqKey="Hartmond U" first="U." last="Hartmond">U. Hartmond</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, 700 Experiment Station Road</s1><s2>Lake Alfred, FL 33850-2299</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Salyani, M" sort="Salyani, M" uniqKey="Salyani M" first="M." last="Salyani">M. Salyani</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, 700 Experiment Station Road</s1><s2>Lake Alfred, FL 33850-2299</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Burns, J K" sort="Burns, J K" uniqKey="Burns J" first="J. K." last="Burns">J. K. Burns</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, 700 Experiment Station Road</s1><s2>Lake Alfred, FL 33850-2299</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Whitney, J D" sort="Whitney, J D" uniqKey="Whitney J" first="J. D." last="Whitney">J. D. Whitney</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, 700 Experiment Station Road</s1><s2>Lake Alfred, FL 33850-2299</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author></analytic><series><title level="j" type="main">HortScience</title><title level="j" type="abbreviated">HortScience</title><idno type="ISSN">0018-5345</idno><imprint><date when="1999">1999</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">HortScience</title><title level="j" type="abbreviated">HortScience</title><idno type="ISSN">0018-5345</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abscission</term><term>Citrus sinensis</term><term>Damage</term><term>Defoliation</term><term>Dose activity relation</term><term>Fruit</term><term>Injury</term><term>Loss</term><term>Mechanical harvesting</term><term>Phytotoxicity</term><term>Systemic</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Dégât</term><term>Blessure</term><term>Abscission</term><term>Fruit</term><term>Récolte mécanique</term><term>Défoliation</term><term>Relation dose réponse</term><term>Perte</term><term>Phytotoxicité</term><term>Citrus sinensis</term><term>Systémique</term><term>Metsulfuron</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Fruit</term><term>Défoliation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A field experiment was conducted to determine effects of concentration and spray volume of metsulfuron-methyl as an abscission aid for mechanical harvesting of citrus. Concentrations of 1,2, and 4 mg.L<sup>-1</sup> metsulfuron-methyl were applied to 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees at 470, 1900, and 4700 L.ha<sup>-1</sup> (0.5 to 19 g.ha<sup>-1</sup> a.i.). Effective fruit loosening was achieved with all applications >1.9 g.ha<sup>-1</sup> (4 mg.L<sup>-1</sup> at all volumes, 2 mg.L<sup>-1</sup> at 1900 and 4700 L.ha<sup>-1</sup>, and 1 mg.L<sup>-1</sup> at 4700 L.ha<sup>-1</sup>). Heavy defoliation and twig dieback were observed on trees receiving 2 and 4 mg.L<sup>-1</sup> at all volumes. Defoliation and dieback became more severe and flower development and fruit set were inhibited as fruit loosening increased. The use of metsulfuron-methyl as an abscission agent for 'Hamlin' oranges is not recommended until conditions for its safe application can be determined. Chemical names used: methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl) amino] carbonyl] amino] sulfonyl] benzoate (metsulfuron-methyl).</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Floride</li></region></list><tree><country name="États-Unis"><region name="Floride"><name sortKey="Kender, W J" sort="Kender, W J" uniqKey="Kender W" first="W. J." last="Kender">W. J. Kender</name></region><name sortKey="Burns, J K" sort="Burns, J K" uniqKey="Burns J" first="J. K." last="Burns">J. K. Burns</name><name sortKey="Hartmond, U" sort="Hartmond, U" uniqKey="Hartmond U" first="U." last="Hartmond">U. Hartmond</name><name sortKey="Salyani, M" sort="Salyani, M" uniqKey="Salyani M" first="M." last="Salyani">M. Salyani</name><name sortKey="Whitney, J D" sort="Whitney, J D" uniqKey="Whitney J" first="J. D." last="Whitney">J. D. Whitney</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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