Effect of the ginger extract (Zingiber officinale Rosc.) on the growth of Pythium sp., the causal agent of cucumber damping off disease. The Pythium sp. often damaged cucumber seedling in seedbed. The objective of this study was to evaluate the effectiveness of ginger extract on the growth and spore production of Pythium sp. The study was conducted in 2005 at the laboratory of plant pathology, University of Lampung. The treatments were arranged in a completely randomized design with four replicates. The treatments were consisted of five level of concentrations of ginger rhizome extract i.e, 0; 2.5; 5.0; 7.5 and 10 %. The results show that all concentrations of the rhizome ginger extract inhibited mycelial growth and spore production of Pythium sp. There was a significant linear relationship between the rhizome ginger extract and both of fungal growth and spore production.
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