Climate variations in greenhouse cultivated with gerbera and relationship with external conditions

Engenharia Agrícola

Aderson S. De Andrade Júnior²  Lisânea M. O. Damasceno¹  Nildo Da S. Dias¹  Hans R. Gheyi¹  Cristiane Guiselini¹ 

[1] ,Embrapa Meio-NorteTeresina PI

关键词: meteorology;    meteorological elements;    floriculture;    Gerbera jamesonii;    meteorologia;    elementos meteorológicos;    floricultura;    Gerbera jamesonii;   

DOI  :  10.1590/S0100-69162011000500003

来源: SciELO

【 摘 要 】

Black meshes used in greenhouses provide shade to plants, affecting photosynthesis and presenting certain properties that change the microclimatic conditions in these environments. The objective of this study was to evaluate the variation in climate elements in greenhouse cultivated with gerbera (Gerbera jamesonii, Vr. Rambo) in relation to external conditions and the reference evapotranspiration (ETo) at Teresina, State of Piauí, Brazil. The measurements were obtained from July to October 2007 by an automatic data acquisition system installed inside and outside the greenhouse. The global solar radiation, evapotranspiration, precipitation, temperature, relative humidity, and wind speed were estimated. The results showed that major effect of the shading occurred on the mean air temperature during the 120 days, making it higher than the external environment. Inside the greenhouse, mean values of relative air humidity, reference evapotranspiração, global solar radiation and wind speed were lower compared to those outside the greenhouse.

【 授权许可】

CC BY   
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