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The suitability of various building types and roof cover materials for growth of export tomatoes was tested at the Besor Experiment Station in the western Negev of Israel. The buildings studied were o...f the Dutch Venlo and Israeli Sharsheret types. The roof-cover materials tested were glass, polyethylene (P.E.), fiberglass (E.G.) and polycarbonate (P.C.). The climatic conditions created in the P.E.-covered building caused fruit deformation and a decrease in quality, probably because of the low night temperatures compared with the other buildings. The conditions in the P.C.-covered building caused a decrease in fruit yield and quality, especially when production was at its highest rate in the other buildings. The low yields were probably due to the lower radiation levels under this cover. The Sharsheret greenhouse with a glass-covered roof seemed to be the most suitable for tomatoes, although the other constructions tested may be used as well. The type of building and the roof cover materials should be selected according to economic considerations.続きを見る
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Mendeley出力
KJ00004506721