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Showing 1 to 17 of 17 for “"leaf rust"”.
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Towards Cloning the Leaf Rust Resistance Gene Rph5
Leaf rust caused by Puccinia hordei is an important disease of barley (Hordeum vulgare) in many regions of the world. Yield losses up to 62% have been reported in susceptible cultivars. The Rph5 gene confers resistance to the most prevalent races (8 and 30) of barley leaf rust in the United States. …
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MULTIPLE APPROACHES TO MAPPING RESISTANCE TO MELAMPSORA LEAF RUST IN SHRUB WILLOW (SALIX)
… yield. Among the most impactful are willow leaf rusts caused by Melampsora spp. As a macrocyclic and heteroecious rust, breeding for resistance is challenging. Most of the research into the Melampsora and Salix pathosystem centers around European species, however, revealing a need for the …
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Location of genes conditioning resistance of barley to leaf rust (Puccinia hordei Otth)
… by primary trisomic analysis. Inheritance of leaf rust resistance was determined by seedling reaction to culture 57-19, race UN4 of Puccinia hordei. The inheritance and linkage relationships of marker genes and rust resistance were analyzed from F₂ and F₃ coupling data. A recombination value …
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Identification and mapping of a resistance gene to barley leaf rust(<I>Puccinia hordei</I> G. Otth)
Barley leaf rust (<I>Puccinia hordei</I> G. Otth) has been the cause of numerous and often devastating disease epidemics since the beginning of agriculture. Leaf rust is one of the most important diseases that affect barley (<I>Hordeum vulgare</I> L.) throughout the world. The pathogen <I>Puccinia …
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The inheritance of resistance to leaf rust and bunt, and of other characters in the wheat cross, Tenmarq X Minturki
Call number: LD2668 .T4 1933 B41
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Identification and Mapping of Resistance to Puccinia striiformis and Puccinia triticina in Soft Red Winter Wheat
… winter wheat (Triticum aestivum L.) cultivars. Leaf rust caused by Puccinia triticina Eriks and stripe rust caused by Puccinia striiformis Westend. f.sp. tritici Eriks. are destructive pathogens of wheat. From 2014 to 2015 phenotypic data was collected at diverse locations for resistance to leaf …
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Identificazione di un QTL principale per resistenza a ruggine bruna sul cromosoma 7B di frumento duro
Leaf rust caused by Puccinia triticina is a serious disease of durum wheat (Triticum durum) worldwide. However, genetic and molecular mapping studies aimed at characterizing leaf rust resistance genes in durum wheat have been only recently undertaken. The Italian durum wheat cv. Creso shows a high …
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Yield Improvement in Eastern Soft Red Winter Wheat from 1919 to 2009
… Red May (1919) and; 2) to determine effects of leaf rust (Puccinia triticina f. sp. tritici) and powdery mildew [Blumeria graminis (DC.) E.O. Speer f. sp. tritici Em. Marchal] on grain yield components and agronomic traits. Replicated yield trials were grown at Warsaw, VA in 2010 and 2011, and …
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Location of genes for resistance to Puccinia hordei otth. in the barley varieties Sudan and Reka 1 as determined by means of translocation stocks
… was to assign the genes for resistance to leaf rust Puccinia hordei Otth. race 4 in two varieties of barley to the correct chromosome pair by means of crossing with nine translocation stocks. The varieties Sudan (C.I.6489) and Reka 1 (C.I.5051) were crossed with the following translocation …
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Characterization of Hulled and Hulless Winter Barley, Hordeum vulgare L., Through Traditional Breeding and Molecular Techniques
… head blight (caused by Fusarium graminearum), leaf rust (caused by Puccinia hordei G. Otth), powdery mildew [caused by Blumeria graminis (DC.) E.O. Speer f. sp. hordei Em. Marchal], net blotch (caused by Pyrenophora teres) and spot blotch [caused by Cochliobolus sativus (Ito & Kuribayashi) …
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Utilization of tall wheatgrass translocation lines to improve fusarium head blight resistance in wheat
<p>Fusarium head blight (FHB) and leaf rust (LR) are two major fungal pathogens threatening the wheat crop, consequently identifying resistance genes from various sources is always of importance to wheat breeders. Type II FHB resistance in wheat has been improved by introgressing QTL from landraces …
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Identification and Mapping of Adult Plant Stripe Rust Resistance in Soft Red Winter Wheat
Since 2000, stripe rust, caused by the fungal pathogen (Puccinia striiformis Westend. f.sp. tritici Eriks.) has resulted in yield losses of wheat (Triticum aestivium L.) in the United States, that exceeded the combined losses of leaf rust (Puccinia triticina Eriks.) and stem rust (Puccinia gramins …
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Identification and analysis of mechanisms involved in a broad-spectrum disease resistant mutant of the winter wheat cv. Guardian
… (Blumeria graminis f. sp. tritici), yellow rust (Puccinia striiformis f. sp. tritici), and leaf rust (Puccinia recondita f. sp. tritici), along with partial resistance to stagnonospora nodorum blotch (caused by the necrotroph Stagonosporum nodorum) and septoria tritici blotch (caused by the …
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Potential of Hulless Winter Barley as an Improved Feed Crop
… for reaction type to races 8 and 30 of barley leaf rust (Puccinia hordei) and to a composite population of powdery mildew (Blumeria graminis f. sp. hordei). These accessions also were planted in observation rows to evaluate heading date, plant height, lodging, and seed threshability. The …
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Evaluation of additive and nonadditive genetic variation in elite maize germplasm for root, shoot, and ear characteristics
… were phenotyped for an extensive number of leaf, tassel, and ear traits, including yield (Chapter 1). Parents and hybrids were also evaluated for root system architecture and complexity (Chapter 2), as well as susceptibility to naturally occurring common rust, grey leaf spot, and northern …