P. J. F. M. Horsten

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The effect of leaf necrosis caused by Ascochyta caulina (P. Karst.) v.d. Aa & v Kest. on photosynthesis of leaves of Chenopodium album L. was studied in growth chambers. Fully expanded leaves of young plants were sprayed with a suspension of pycnidiospores, or with a spore-free control solution. Subsequently, leaves were exposed to high humidity for 6, 18,(More)
Ascochyta caulina is considered a potential mycoherbicide againstChenopodium album. Disease development ofC. album plants and plants of 14 other species after application of pycnidiospores ofA. caulina was studied in climate chamber experiments. The experiments were carried out to analyse disease development with time, and to recognize factors that may(More)
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