Publications by authors named "Ramadan A Arafa"

Egyptian clover (Trifolium alexandrinum L.), also known as berseem clover, is an important forage crop to Semi-arid conditions that was domesticated in ancient Egypt since 6,000 years BC and introduced and well adapted to numerous countries including India, Pakistan, Turkey, and Mediterranean region. Despite its agricultural importance, genomic research on Egyptian clover has been limited to developing efficient modern breeding programs.

View Article and Find Full Text PDF

Late blight, caused by Phytophthora infestans, is a major potato disease globally, leading to significant economic losses of $6.7 billion. To address this issue, we evaluated the antifungal activity of ZnO and CuO nanoparticles (NPs) against P.

View Article and Find Full Text PDF

Late blight, caused by Phytophthora infestans, is one of the most destructive potato diseases in the world. In Yemen, identification of P. infestans still depends on a visual survey and external examination of late blight symptoms.

View Article and Find Full Text PDF

Late blight disease, caused by (Mont.) de Bary, is one of the most challenging diseases threatening tomato production and other Solanaceae crops. Resistance to late blight is found in certain wild species, but the mechanism behind the resistance is not fully understood.

View Article and Find Full Text PDF

Rust, induced by the fungus , is one of the most serious bean diseases. The involved mechanisms in rust resistance were evaluated in 10 common bean genotypes during the 2019/2020 and 2020/2021 growing seasons. The disease parameters such as final rust severity (FRS%), area under the disease progress curve (AUDPC) and disease increase rate (r-value) were lower in the resistant genotypes than in highly susceptible genotypes.

View Article and Find Full Text PDF

Phytophthora infestans (Mont.) de Bary, a hemibiotrophic oomycete, has caused severe epidemics of late blight in tomato and potato crops around the world since the Irish Potato Famine in the 1840s. Breeding of late blight resistant cultivars is one of the most effective strategies to overcome this disruptive disease.

View Article and Find Full Text PDF

Tomato late blight caused by Phytophthora infestans (Mont.) de Bary, also known as the Irish famine pathogen, is one of the most destructive plant diseases. Wild relatives of tomato possess useful resistance genes against this disease, and could therefore be used in breeding to improve cultivated varieties.

View Article and Find Full Text PDF