AC Taber is a hard red spring wheat cultivar that has had long-lasting resistance to the leaf rust fungus Puccinia triticina. The objective of this study was determine chromosome location genes in Taber. rust-susceptible Thatcher crossed with develop an F 6 recombinant inbred line (RIL) population. RILs and parents were evaluated for segregation five field plot tests two seedling race BBBDB P. ...

during winter 2004 and 2005, two field and glasshouse experiments were conducted to evaluate the response of 471 chickpea genotypes to ascochyta rabiei, as ascochyta blight (ab) disease in chickpea (cicer aurietimum). frequent rainfall at flowering and pod formation stages made favorite conditions conducive for the infection and symptoms expression. so, the genotypes with high level of toleranc...

Wheat gene Yr39 confers durable high-temperature adult-plant (HTAP) resistance to stripe rust caused by Puccinia striiformis f. sp. tritici, one of the most destructive diseases wheat worldwide. The objective this study was transfer into four Chinese elite cultivars. Backcross inbred line populations were developed from cultivars Chuanmai 42 (CM42), Bainong Aikang 58 (AK58), Han 6172 (H6172) an...

Ticks and tick born diseases affect the economics of dairy farm animals. Continuous use acaricides leads to development acaricide resistance in population, order overcome resistance, newer alternatives like herbal extracts can be used as acaricides. The following study is designed evaluate acaricidal efficacy Azadirachta indica, Calotropis gigantea Ricinus communis against R. (Boophilus) microp...

BACKGROUND AND AIMS The lack of studies assessing the simultaneous expression of tolerance and resistance traits during seedling development and overall seedling defences as compared with adult plants, in general, constitutes a significant research need that can greatly improve our understanding of overall investment in defences during plant ontogeny. METHODS Using two seedling and two juveni...