Stripe rust or yellow rust (YR), caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most important diseases of wheat (Triticum aestivum L.). Widespread deployment of resistant cultivars is the best means of achieving durable disease control. The red grain, spring wheat cultivar Napo 63 produced by CIMMYT in the 1960s shows a high level of adult-plant resistance to stripe rust in...

Rust diseases remain a significant threat to the production of most cereals including wheat. New sources of resistance are continually sought by breeders to combat the emergence of new pathogen races. Rice is atypical in that it is an intensively grown cereal with no known rust pathogen. The resistance of rice to cereal rust diseases is referred to as nonhost resistance (NHR), a resistance mech...

Twenty-three coffee (Coffea arabica) genotypes were evaluated for relative resistance against white stem borer (Xylotrechus quadripes) and leaf rust (Hemileia vastatrix) at Horticulture Research Station, Malepatan, Pokhara during three consecutive years from 2016 to 2019. The monthly observation on the emergence of this showed that "Yellow caturra" “Tekisic” highly infested with as compared oth...

A collection of 84 bread wheat Spanish landraces were inoculated with three isolates leaf rust and one yellow at the seedling stage in controlled conditions. The latency period on susceptible was also assessed. An extended 149 planted locations field trials to evaluate naturally occurring severity. Several (36) resistant isolate stage, but only all isolates. Landraces PG14 originated from areas...

Puccinia striiformis f.sp. tritici (Pst) is the causal agent of stripe (yellow) rust on wheat. It seriously threatens wheat production worldwide. The obligate biotrophic fungus is highly capable of producing new virulent races that can overcome resistance. Studying the inheritance of Pst virulence using the classical genetic approach was not possible until the recent discovery of its sexual sta...

Lentil, as an economical source of protein, minerals and vitamins, plays important role in nutritional security of the common man. Grown mainly in West Asia, North Africa (WANA) region and South Asia, it suffers from several biotic stresses such as wilt, rust, blight and broomrape. Lentil rust caused by autoecious fungus Uromyces viciae fabae (Pers.) Schroet is a serious lentil disease in Alger...

Abstract To develop and optimize protective measures in the CCR conditions, an analysis of epidemic resistance zoned varieties hybrid lines spring wheat to causative agents septoria, brown yellow rust was carried out; effect fungicides, biological agents, their binary mixtures studied for crops. Among selection material wheat, numbers were identified selected as potential genetic sources donors...

ABSTRACT Host plant resistance is an economical and environmentally sound method of control of leaf rust caused by the fungus Puccinia triticina, which is one of the most serious diseases of wheat (Triticum aestivum) worldwide. Wild relatives of wheat, including the tetraploid T. timopheevii subsp. armeniacum, represent an important source of genes for resistance to leaf rust. The objectives of...