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The effect of covering materials for greenhouses on growing conditions and yields of roses


, : The effect of covering materials for greenhouses on growing conditions and yields of roses. Acta Horticulturae (43 (1)): 125-134

Experiments were carried out with Baccara roses in 4 greenhouses of the same shape, structure and size (208 m2); one was covered with glass, one with fibreglass and two with polyethylene. They were equipped with a specially designed air conditioning system to maintain identical air flow and temperatures in all the buildings. There were slight differences in light intensity under all coverings because of dust that settled on them.

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