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MEDIDAS DA EVAPOTRANSPIRACAO (ETc) E COEFICIENTE DE CULTURA (Kc) DO CRAVO-DE-DEFUNTODENTRO E FORA DE AMBIENTE PROTEGIDO.  Millena Ariana Boueri; Raul Andres Martinez; Dalva Martinelli Cury LunardiDepartamento de Ciencias Ambientais, Faculdade de Ciencias Agronomicas, Universidade Estadual Paulista, Botucatu, SP, millena@fca.unesp.br  1 RESUMO O objetivo deste trabalho foi avaliar o consumo de agua do cravo-de-defunto (Tagetes sp.), dentro e fora de ambiente protegido, com uso de lisimetros de lencol freatico constante, para determinacao da evapotranspiracao da cultura (ETc) e dos coeficientes de cultura (Kc) em todos os seus estadios de desenvolvimento. O experimento foi realizado na area experimental do Departamento de Recursos Naturais – Setor Ciencias Ambientais da Faculdade de Ciencias Agronomicas da Universidade Estadual Paulista, Campus de Botucatu, no periodo de 21/05/02 a 09/08/02. A area experimental foi constituida de duas areas de 280m2, sendo uma na condicao de campo e a outra em ambiente protegido tipo arco, com cobertura de polietileno de baixa densidade (PEBD), difusor de luz, com 150mm de espessura, tendo nas laterais sombrite com 50% de reducao da radiacao solar. Os resultados mostraram que a ETc total, para um ciclo de 81 dias, foi de 115 e 119mm, nas condicoes de ambiente protegido e campo, respectivamente, com medias de 1,4 e 1,5mm d-1. Foram observados valores medios de Kc de 0,48 e 0,71 na fase inicial, 0,87 e 0,93 no desenvolvimento vegetativo, com maximos de 1,15 e 0,85 na floracao, e 0,94 e 0,70 no final do ciclo, nas condicoes de ambiente protegido e campo, respectivamente. UNITERMOS: lisimetro; Tagetes sp.  BOUERI, M. A.; MARTINEZ, R. A.; CURY LUNARDI, D. M. CROP EVAPOTRANSPIRATION (ETc) AND CROP COEFFICIENT (Kc) MEASUREMENTS OF TAGETES, INSIDE AND OUTSIDE GREENHOUSE  2 ABSTRACT The objective of this work was to measure the water consumption of the Tagetes sp. crop, inside and outside of greenhouse, through water table lysimeters, for determination of the crop evapotranspiration (ETc) and crop coefficients (Kc) in all its development stages. The experiment was carried in the experimental area of the Department of Natural Resources - Section Environmental Sciences of the Faculdade de Ciencias Agronomicas, UNESP, Botucatu, SP, 21/05/02 to 09/08/02. The experimental area was constituted of two areas of 280m2, being one in the field condition and the other in arch type greenhouse, with polyethylene low density (PEBD) covering, light difusor, with 150mm of thickness, and polypropylene screen with 50% of solar radiation reduction in the lateral. The results showed that the total ETc, for a cycle of 81 days, was of 115 and 119mm, in the conditions of greenhouse and field, respectively, with averages of 1.4 and 1.5mm d-1. The crop coefficient varied in agreement with the stages of development of the culture, medium values of 0.48 and 0.71 having been observed in the initial phase, 0.87 and 0.93 in the vegetative development, with maxima of 1.15 and 0.85 in the blossom, and 0.94 and 0.70 in the end of the cycle, in the conditions of greenhouse and field, respectively. KEYWORDS: lisymeter; Tagetes sp.

MEDIDAS DA EVAPOTRANSPIRAÇÃO (ETc) E COEFICIENTE DE CULTURA (Kc) DO CRAVO-DE-DEFUNTODENTRO E FORA DE AMBIENTE PROTEGIDO.