The current low incidence of sugarcane diseases in the South African sugar industry has been hardwon. This achievement is due largely to the selection and release of resistant varieties. Consequently, current estimates of crop loss due to smut and mosaic indicate reductions in yield of only 0.2% in total, equivalent to R7 million per annum. In the absence of an RSD variety resistance screening ...

two different viruses were isolated from sugar beet growing areas in karaj, which caused mosaic symptoms. collected samples were classified in two different groups. the host range of the first group was confined to some species in chenopodiaceae and amaranthaceae families. the sap of infected plants reacted positively with beet mosaic virus antisera in ouchterlony double-diffusion test. electro...

background and aims: to evaluate the effect of temperature on wheat streak mosaic virus (wsmv) resistance phenotype, through total protein, phenol, and peroxidase activity in bread wheat, a factorial experiment was conducted using adl-cross (resistant) and marvdasht (susceptible) cultivars. materials and methods: results showed that incubation at 32c changed the gene expression for resistance ...