Handwarmers benefit young citrus trees during freezes
Identifieur interne : 003632 ( Main/Exploration ); précédent : 003631; suivant : 003633Handwarmers benefit young citrus trees during freezes
Auteurs : L. R. Parsons [États-Unis] ; T. A. Wheaton [États-Unis] ; G. Yelenosky [États-Unis]Source :
- HortScience [ 0018-5345 ] ; 1995.
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- Pascal (Inist)
English descriptors
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Abstract
Handwarmers placed inside conventional insulating tree wraps increased trunk temperatures and improved tree survival underfreeze conditions. Handwarmers generate heat by oxidation of Fe powder. In freeze-chamber tests with air temperature as low as -7.1C for 4 hours, wraps plus handwarmers kept trunk temperatures above freezing. Handwarmers increased minimum temperatures by 7C during a one-night freeze. Benefit of the handwarmer decreased the second night of a simulated two-night freeze but still increased minimum temperature by 1.3C. Tree survival was significantly improved by handwarmers in the freeze-chamber tests. In afield testduring a mild freeze, handwarmers increased the minimum temperature by 3.5C the first night but provided no benefit the second night
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Florida, inst. food agricultural sci., citrus res. education cent.</s1><s2>Lake Alfred FL 33850</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Lake Alfred FL 33850</wicri:noRegion></affiliation></author><author><name sortKey="Yelenosky, G" sort="Yelenosky, G" uniqKey="Yelenosky G" first="G." last="Yelenosky">G. Yelenosky</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>USDA, U.S. horticulture res. lab.</s1><s2>Orlando FL 32803</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Orlando FL 32803</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">95-0277824</idno><date when="1995">1995</date><idno type="stanalyst">PASCAL 95-0277824 INIST</idno><idno type="RBID">Pascal:95-0277824</idno><idno type="wicri:Area/PascalFrancis/Corpus">000C19</idno><idno type="wicri:Area/PascalFrancis/Curation">001292</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000C00</idno><idno type="wicri:doubleKey">0018-5345:1995:Parsons L:handwarmers:benefit:young</idno><idno type="wicri:Area/Main/Merge">003906</idno><idno type="wicri:Area/Main/Curation">003632</idno><idno type="wicri:Area/Main/Exploration">003632</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Handwarmers benefit young citrus trees during freezes</title><author><name sortKey="Parsons, L R" sort="Parsons, L R" uniqKey="Parsons L" first="L. R." last="Parsons">L. R. Parsons</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Univ. Florida, inst. food agricultural sci., citrus res. education cent.</s1><s2>Lake Alfred FL 33850</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Lake Alfred FL 33850</wicri:noRegion></affiliation></author><author><name sortKey="Wheaton, T A" sort="Wheaton, T A" uniqKey="Wheaton T" first="T. A." last="Wheaton">T. A. Wheaton</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Univ. Florida, inst. food agricultural sci., citrus res. education cent.</s1><s2>Lake Alfred FL 33850</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Lake Alfred FL 33850</wicri:noRegion></affiliation></author><author><name sortKey="Yelenosky, G" sort="Yelenosky, G" uniqKey="Yelenosky G" first="G." last="Yelenosky">G. Yelenosky</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>USDA, U.S. horticulture res. lab.</s1><s2>Orlando FL 32803</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Orlando FL 32803</wicri:noRegion></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="1995">1995</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>Citrus sinensis</term><term>Field experiment</term><term>Freeze</term><term>Heat production</term><term>Laboratory study</term><term>Method</term><term>Protection</term><term>Survival</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Protection</term><term>Gel</term><term>Production chaleur</term><term>Méthode</term><term>Survie</term><term>Etude en laboratoire</term><term>Essai en champ</term><term>Citrus sinensis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Handwarmers placed inside conventional insulating tree wraps increased trunk temperatures and improved tree survival underfreeze conditions. Handwarmers generate heat by oxidation of Fe powder. In freeze-chamber tests with air temperature as low as -7.1C for 4 hours, wraps plus handwarmers kept trunk temperatures above freezing. Handwarmers increased minimum temperatures by 7C during a one-night freeze. Benefit of the handwarmer decreased the second night of a simulated two-night freeze but still increased minimum temperature by 1.3C. Tree survival was significantly improved by handwarmers in the freeze-chamber tests. In afield testduring a mild freeze, handwarmers increased the minimum temperature by 3.5C the first night but provided no benefit the second night</div></front></TEI><affiliations><list><country><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Parsons, L R" sort="Parsons, L R" uniqKey="Parsons L" first="L. R." last="Parsons">L. R. Parsons</name></noRegion><name sortKey="Wheaton, T A" sort="Wheaton, T A" uniqKey="Wheaton T" first="T. A." last="Wheaton">T. A. Wheaton</name><name sortKey="Yelenosky, G" sort="Yelenosky, G" uniqKey="Yelenosky G" first="G." last="Yelenosky">G. Yelenosky</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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