Journal of Agricultural and Food Chemistry · 2000 · 25 citations · 10 references
AgricultureBotanyPlant SciencesAllelopathyCrop ProtectionHerbicide Mode Of ActionAllelopathy In AgroecosystemsHerbicide ScienceHerbicide Structure-activity RelationshipsSeed Germination InhibitionSpecies Differences In Herbicide ResponseSpecies-specific Herbicide ResponseAllelopathic Effects On GerminationAllelopathic Effects On Seed GerminationHerbicide-crop InteractionsInhibitory Germination EffectsTerpenoid-based PesticidesTerpenoids In Allelopathy
A collection of 11 natural and synthetic podolactones have been tested as allelochemicals in a range between 10 - 4 and 10 - 9 M, and their potential use as natural herbicide models is discussed. Their effects on the germination and growth of the dicots Lactuca sativa (cv. Nigra and cv. Roman), Lepidium sativum, and Lycopersicon esculentum and the monocots Allium cepa, Hordeum vulgare, and Triticum aestivum as standard target species have been studied. An important inhibitory effect on the germination and growth of all tested species (average = 90%) was produced by compounds 9 − 11 at 10 - 4 M. The specific structural requirements related to their activities are studied. On the basis of these results, their use as potential natural herbicide models is proposed. Keywords: Podolactones; diterpenes; allelopathy; natural herbicide models; Lactuca sativa; Lycopersicon esculentum; Lepidium sativum; Allium cepa; Hordeum vulgare; Triticum aestivum; Logran
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