| |
|
|
| Registros recuperados : 1.593 | |
| Registros recuperados : 1.593 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
30/12/1998 |
|
Data da última atualização: |
11/06/2018 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
ALBUQUERQUE, P. E. P.; GOMIDE, R. L.; KLAR, A. E. |
|
Afiliação: |
PAULO EMILIO PEREIRA DE ALBUQUERQUE, CNPMS; REINALDO LUCIO GOMIDE, CNPMS. |
|
Título: |
Crop water stress index for beans obtained from temperature difference between canopy and air. |
|
Ano de publicação: |
1998 |
|
Fonte/Imprenta: |
In: INTER REGIONAL CONFERENCE ENVIRONMENT-WATER-INNOVATIVE ISSUES IN IRRIGATION AND DRAINAGE, 1., 1998, Lisbon, Portugal. [Proceedings]. New York: E & FNSPON, 1998. p. 189-196. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Canopy temperature (Tc), besides serving as a parameter to estimate crop evapotranspiration (ETc), can also be used to define water stress indexes that have the advantage to serve as a reference for the rational scheduling for irrigation for a crop. One of these indexes, which has been well disseminated, is the crop water stress index (CWSI), based on the ratio between crop resistance and aerodynamic resistance (rc/ra), whose value can be estimated by the difference between the cropy canopy and the air (Tc - Ta). A study was carried out with the objective of obtaining CWSI values for beans (Phaseolus vulgaris L.), under field conditions, in which the crop was under different irrigation scheduling; 2, 4, 8, 12 and 16 day intervals. The experiment was conducted at Sete Lagoas, Minas Gerais State, Brazil, in the period from July through October, 1995. Tc values were measured by means of infrared thermometry at two times of the day; between 10:00 and 11:00 am, and between 01:00 and 02:00 p.m. The obtained results pointed to a limit of 0,15 as a reference for the beginning of water stress to occur, which is consistent with other work and other index obtained under similar conditions. |
|
Palavras-Chave: |
Drought stress; Estresse. |
|
Thesagro: |
Água; Evapotranspiração; Feijão; Irrigação; Phaseolus Vulgaris; Temperatura. |
|
Thesaurus NAL: |
evapotranspiration; irrigation; temperature. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39975/1/Crop-water.pdf
|
|
Marc: |
LEADER 02084nam a2200265 a 4500
001 1481821
005 2018-06-11
008 1998 bl uuuu u00u1 u #d
100 1 $aALBUQUERQUE, P. E. P.
245 $aCrop water stress index for beans obtained from temperature difference between canopy and air.$h[electronic resource]
260 $aIn: INTER REGIONAL CONFERENCE ENVIRONMENT-WATER-INNOVATIVE ISSUES IN IRRIGATION AND DRAINAGE, 1., 1998, Lisbon, Portugal. [Proceedings]. New York: E & FNSPON, 1998. p. 189-196.$c1998
520 $aCanopy temperature (Tc), besides serving as a parameter to estimate crop evapotranspiration (ETc), can also be used to define water stress indexes that have the advantage to serve as a reference for the rational scheduling for irrigation for a crop. One of these indexes, which has been well disseminated, is the crop water stress index (CWSI), based on the ratio between crop resistance and aerodynamic resistance (rc/ra), whose value can be estimated by the difference between the cropy canopy and the air (Tc - Ta). A study was carried out with the objective of obtaining CWSI values for beans (Phaseolus vulgaris L.), under field conditions, in which the crop was under different irrigation scheduling; 2, 4, 8, 12 and 16 day intervals. The experiment was conducted at Sete Lagoas, Minas Gerais State, Brazil, in the period from July through October, 1995. Tc values were measured by means of infrared thermometry at two times of the day; between 10:00 and 11:00 am, and between 01:00 and 02:00 p.m. The obtained results pointed to a limit of 0,15 as a reference for the beginning of water stress to occur, which is consistent with other work and other index obtained under similar conditions.
650 $aevapotranspiration
650 $airrigation
650 $atemperature
650 $aÁgua
650 $aEvapotranspiração
650 $aFeijão
650 $aIrrigação
650 $aPhaseolus Vulgaris
650 $aTemperatura
653 $aDrought stress
653 $aEstresse
700 1 $aGOMIDE, R. L.
700 1 $aKLAR, A. E.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
