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Źródłem informacji, na podstawie których ocenia się stan fitosanitarny roślin uprawnych w Polsce jest monitoring szkodliwości agrofagów. Ogólnokrajowy monitoring gospodarczo ważnych agrofagów oparty jest na współpracy Instytutu Ochrony Roślin-PIB w Poznaniu z Wojewódzkimi Inspektoratami Państwowej Inspekcji Ochrony Roślin i Nasiennictwa. Współpraca polega na prowadzeniu jednolicie według metodyk obserwacji...
When barley, wheat or oat leaf epidermal cells were attacked by their appropriate forma specialis (f.sp.) of Blumeria graminis DC. Speer (f.sp. hordei, tritici and avenae, respectively), many attempted penetrations succeeded, functional haustoria were formed and very few plant cells died. When attacked by either of the two possible inappropriate ff.spp., penetration attempts failed in association...
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