SciELO - Scientific Electronic Library Online

vol.31 issue2Physicaland physiochemical characteristics of mangosteen peel in three harvest periodsWater supply, solar radiation and photosynthesis in 'Cabernet Sauvignon' grapevines under plastic covering author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967


CONCEICAO, Marco Antônio Fonseca  and  MARIN, Fábio Ricardo. Microclimate conditions inside an irrigated vineyard covered with a plastic screen . Rev. Bras. Frutic. [online]. 2009, vol.31, n.2, pp.423-431. ISSN 0100-2945.

Jales is one of the most important table grape producing regions of São Paulo State, Brazil. The grapevines are usually irrigated and cultivated using the pergola training system and, also, covered with a plastic screen to protect against hail, birds and bat attacks. Nevertheless, the irrigation, the training system and the plastic covering modify the microclimatic conditions inside the vineyard. The present work aimed to compare the meteorological conditions outside and inside a vineyard in the Jales region. The evaluations were carried out in the Tropical Viticulture Experimental Station of the Brazilian Agricultural Research Corporation (Embrapa), in Jales, SP. The grapevines were conducted in a pergola training system, covered with an 18% shadow plastic screen and irrigated using micro sprinklers. The meteorological data were registered outside and inside the vineyard using two automatic systems. It was observed that the plastic screen reduced the incident solar radiation (Sr) above the canopy in 20%, in average. The Sr values bellow the canopy were lower than 20% of those registered outside, during the highest leaf expansion period. The air temperature and relative humidity did not differ from those registered outside the vineyard. During the irrigation the air temperature was reduced in 3% and the relative humidity was increased in 4%, in average.

Keywords : grapevine; solar radiation; air temperature; relative air humidity.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License