Thomas, J. B., Conner, R. L. and Graf, R. J. 2012. Radiant hard red winter wheat. Can. J. Plant Sci. 92: 169 175. Radiant hard red winter wheat (Triticum aestivum L.) is well adapted to the non-hazard region for stem rust (Puccinia graminis Pers.: Pers. f. sp. tritici Eriks. & E. Henn.) within the Canadian prairies. Based on evaluation relative to Norstar, CDC Osprey, AC Tempest and AC Bellatri...

Wheat leaf rust, caused by Puccinia triticina Eriks., is a common and destructive disease of wheat worldwide. The durable rust-resistance gene Lr34 typically described as an adult plant resistance gene, which not expressed at the seedling stage normal greenhouse temperatures. However, when plants with are grown low temperatures, i.e. approximately 8°C. Lines cultivars demonstrate range response...

a study was conducted to identify ssr markers linked to leaf rust resistance genes lr24 and lr28 and to be used for marker-assisted selection (mas) to transfer both genes to a widely cultivated wheat variety mp 3299 under rainfed condition. f2 individuals of the cross mp 3299×nil pbw 343 were used for generating genotypic data employing closely linked scar markers s73719 and s421570 to lr24 and...

Plant cells secrete a wide range of proteins in extracellular spaces in response to pathogen attack. The poplar rust-induced secreted protein (RISP) is a small cationic protein of unknown function that was identified as the most induced gene in poplar leaves during immune responses to the leaf rust pathogen Melampsora larici-populina, an obligate biotrophic parasite. Here, we combined in planta...

In 2020, resistance to leaf and yellow rust in 62 varieties of winter soft wheat recommended for cultivation the Central Chernozem region Russia was characterized. Varieties resistant two species (group resistance) (16%) or one them (18% yellow, 1% rust) have been identified. Moderate level group both types (disease severity up 15%) shown Moskovskaya 56, 70 Latynevka. Bogdanka, Volzhskaya 100, ...

Phakopsora pachyrhizi is an obligate pathogen that causes Asian soybean rust. Asian soybean rust has an unusually broad host range and infects by direct penetration through the leaf cuticle. In order to understand the early events in the infection process, it is important to identify and characterize proteins in P. pachyrhizi. Germination of the urediniospore is the first stage in the infection...

This paper presents a practical classification system for recognising diseased wheat leaves and consists of a number of components. Pre-processing is performed to adjust the orientation of the primary leaf in the image using a Fourier Transform. A Wavelet Transform is then applied to partially remove low frequency information or background in the image. Subsequently, the diseased regions of the...

(McIntosh and Gyarfas 1971, Gill et al. 1983, Tomar et al. 1988, Brown-Guedira et al. 1996). Cultivated T. timopheevii has been used for wheat improvement to a greater extent than has its wild progenitor, T. araraticum. Because T. timopheevii is a cultivated species, the chances of recovering agronomically acceptable derivatives from crosses with wheat are greater. However, T. timopheevii is en...

Leaf or brown rust is one of the most devastating diseases in wheat. Development and deployment resistance wheat cultivars considered as effective, economic sustainable method protecting against yield losses due to leaf rust. Though several alien genes have been reported utilized, Thinopyron ponticum derived gene Lr24/Sr24 has proved be effective for nearly three decades India. The effectivenes...

During the study on rust mycobiota of Central Alborz, several rust infected specimens belonging to Salicaceae family including Populus and Salix species were investigated. Populus nigra, P. euphratica, Saix alba and S. excelsa were infected by various Melampsora species. Uredinial (II) and telial (III) stages of rust were present on infected plants. According to morphological characters, five f...