Influence of Plastic Covering on the Microclimate in Vineyards in the São Francisco River Valley Region

Abstract Data from field experiments conducted in table grape vineyards variety of Festival in Petrolina-PE in the period from September 19 to October 12, 2010 were used to evaluate the influence of plastic cover on microclimate conditions of vineyards in São Francisco River Valley region. Three treatments were studied: canopies without plastic cover (WC); with plastic cover positioned at 50 cm (PC50), and at 100 cm (PC100) above canopy. The results indicate that the plastic cover prevented the passage of about 40% of the global and net radiation, retained the relative humidity inside the canopy, generated an increase of air temperature and marked reduction in wind speed over the canopy of treatment PC50. However, treatment PC100 had a higher incidence of short wavelength and net radiation under canopy (on the berries) than WC and PC50 treatments, resulting in more favorable weather conditions, providing about 40% greater productivity in this treatment. Therefore, the vineyard with plastic cover placed at 100 cm above canopy represents a more suitable alternative to the climatic conditions of the region of the São Francisco River Valley.

Bibliographic Details

Main Authors:	Leitão,Mário de Miranda Vilas Boas Ramos, Azevedo,Pedro Vieira de, Lima,Paulo César da Silva, Oliveira,Gertrudes Macário de, Santos,Carlos Antonio Costa dos
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Meteorologia 2017
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862017000300399
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