Diurnal and seasonal variations of CWSI and non-water-stressed baseline with nectarine trees

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGarcia, A.
dc.creatorAndré, R. G B
dc.creatorFerreira, M. I.
dc.creatorDo Paço, T.
dc.date2014-05-27T11:20:11Z
dc.date2016-10-25T18:16:46Z
dc.date2014-05-27T11:20:11Z
dc.date2016-10-25T18:16:46Z
dc.date2000-12-01
dc.date.accessioned2017-04-06T00:58:29Z
dc.date.available2017-04-06T00:58:29Z
dc.identifierActa Horticulturae, v. 537, p. 415-421.
dc.identifier0567-7572
dc.identifierhttp://hdl.handle.net/11449/66374
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66374
dc.identifierWOS:000166608800049
dc.identifier2-s2.0-84859185607
dc.identifierhttp://www.actahort.org/books/537/537_49.htm
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/887954
dc.descriptionThe work described was part of the programme, Innovative biological indicators to improve the efficiency of water and nitrogen use and the fruit quality in tree crops Project, a partnership between ISA and INRA. Field studies were conducted in Portugal on different irrigated plots of nectarine trees; a fully irrigated (unstressed plot) and a plot that was not irrigated for some days (stressed plot). The aim of this work was to investigate the effects of plant water stress on canopy temperature, to determine the nonwater-stressed baseline and to observe diurnal and seasonal variations of Crop Water Stress Index (CWSI). Canopy temperature, psychrometric and wind speed data were taken each half-hour, between 9:30 and 15:30 h. Results showed that canopy temperature was higher during the daytime, for both unstressed and stressed plots. A linear regression of canopy-air temperature differential and the vapor pressure deficit (non-water-stress baseline) showed a r2= 0.65. During the stress period, the average canopy temperature of the stressed plot was up to 5.4°C higher than the unstressed plot. Diurnal and seasonal average of CWSI values showed differences between unstressed and stressed plots, during the stress period.
dc.languageeng
dc.relationActa Horticulturae
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCanopy temperature
dc.subjectCWSI
dc.subjectInfrared thermometer
dc.subjectPrunus persica
dc.subjectWater stress
dc.titleDiurnal and seasonal variations of CWSI and non-water-stressed baseline with nectarine trees
dc.typeOtro


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