نتایج جستجو برای: yellow rust
تعداد نتایج: 50789 فیلتر نتایج به سال:
Rubus pungens (‘Korean creeping raspberry’; Rosaceae) is a deciduous, broad-leaved tree native to East Asia. Its edible fruit consumed fresh or used as medicinal ingredient for diabetes and asthma (Moon, 1991). In May 2021, symptoms of rust disease were observed on in the Korea National Arboretum, Pocheon, Korea, with incidence 50% amongst 30 plants surveyed. Bright yellow-orange pustules uredi...
Sunflower production in North America has recently been threatened by the evolution of new virulent pathotypes of sunflower rust caused by the fungus Puccinia helianthi Schwein. Rf ANN-1742, an ‘HA 89’ backcross restorer line derived from wild annual sunflower (Helianthus annuus L), was identified as resistant to North America rust races 336 (the predominant race over three years) and 777 (th...
Oat crown rust, caused by f. sp. , is a major constraint to oat ( L.) production in many parts of the world. In this first comprehensive multienvironment genome-wide association map of oat crown rust, we used 2972 single-nucleotide polymorphisms (SNPs) genotyped on 631 oat lines for association mapping of quantitative trait loci (QTL). Seedling reaction to crown rust in these lines was assessed...
Crown rust, caused by the fungal pathogen, Puccinia coronata Corda var. avenae W.P. Fraser Ledingham, reduces kernel quality and grain yield in oat (Avena sativa L.). Partial resistance is considered to be a durable form of rust resistance. This study sought to evaluate the feasibility of simultaneously improving partial resistance to crown rust, grain yield, and seed weight in an oat populatio...
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...
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