Dark brown leaf spot of cereal crops caused by the Bipolaris sorokiniana fungus causes significant crop losses worldwide. To create new resistant varieties, it is necessary to use sources with a high level resistance. In laboratory physiology and biotechnology Krasnoyarsk Research Institute Agriculture, juvenile resistance breeding material spring barley soft wheat competitive variety testing d...

This study was conducted with the aim to isolation bacterial strains capable of antagonism Cercospora arachidicola (Passalora arachidicola) causing brown spot in peanut. From 3 soil samples collected rhizosphere peanut grown Tay Ninh province, Vietnam, 10 were found having antagonistic action arachidicola. After 5 days testing, efficiency all isolates ranged from 33.33±1.28 60.183±0.927%. Study...

Leaf blight and spot caused by Stemphylium spp. Alternaria are the most common destructive tomato diseases in north-western Algeria. During 2018 growing seasons, more than 30% of samples collected from plants grown greenhouses or open fields were infected with Stemphylium. Initial symptoms small, multiple, irregular to oval, yellow leaf spots, which enlarged brown lesions later. In these lesion...

Abstract Fissure caries in a form of brown spot lesion is serious problem for patients. Having passed the dentine-enamel junction, cariogenic bacteria cause demineralization dentine its vicinity. Over time, area spreads deeper towards pulp tooth, creating gradient strength characteristics dentine. The aim this work was to determine mechanical properties and mineral density direction from juncti...