Results 151 to 160 of about 730 (194)

Mapping of the oat crown rust resistance gene Pc91

Theoretical and Applied Genetics, 2010
Crown rust is an important disease of oat caused by Puccinia coronata Corda f. sp. avenae Eriks. Crown rust is efficiently and effectively managed through the development of resistant oat varieties. Pc91 is a seedling crown rust resistance gene that is highly effective against the current P. coronata population in North America.
C A Mccartney, B G Rossnagel, J Chong
exaly   +3 more sources

Induction to Resistance to Crown Rust in Oat

Journal of Phytopathology, 1996
AbstractInduction of resistance to crown rust, caused by Puccinia coronata Cda. var, avenae Frazer et Led., occurred in seedlings of three genetic lines of oats (Avena sativa L.) inoculated sequentially with one of three inducer‐challenger combinations of the pathogen.
J. Sebesta, A. H. Epstein, M. Formanova
openaire   +1 more source

AN ASSOCIATION OF STEM RUST AND CROWN RUST RESISTANCE IN JOSTRAIN OATS

Canadian Journal of Genetics and Cytology, 1968
Rodney backcross lines carrying single genes for stem rust resistance were tested with 10 cultures of crown rust. Lines possessing genes Pg-1, Pg-2, Pg-4 and pg-8 were susceptible to all cultures of crown rust used, whereas the line carrying Pg-3 was highly resistant to several of these cultures. Studies of 51 Victory2 x Jostrain F2 backcross families
R. I. H. McKenzie, J. W. Martens, G. Fleischmann, D. J. Samborski   +3 more
openaire   +1 more source

Confirmation of Oat Crown Rust Disease in Taiwan

Plant Disease
Oat is a minor forage crop grown in Taiwan. Only a few historical records of oat rust disease have been reported in the country. Therefore, the pathogen population remains poorly characterized. A rust-like disease outbreak was detected at the Experimental Farm of National Taiwan University in 2019, which caused significant damage to field experiments.
Chung-Ying Ho, Eva C. Henningsen, Ssu-Tung Chen, Hiran A. Ariyawansa, Eric S. Nazareno, Jana Sperschneider, Peter N. Dodds, Jakob Riddle, Shahryar F. Kianian, Melania Figueroa, Yung-Fen Huang   +10 more
openaire   +2 more sources

THE INHERITANCE OF RESISTANCE TO STEM AND CROWN RUST IN KYTO OATS

Canadian Journal of Genetics and Cytology, 1968
The oat variety Kyto possesses a recessive gene, designated pg-12, which confers seedling resistance to all nine races of oat stem rust tested. This gene is inherited independently of the Pg-2, Pg-4 and pg-9 loci for seedling stem rust resistance. Kyto also possesses a dominant gene, Pc-44, for resistance to crown rust of oats. Gene Pc-44 is inherited
J. W. Martens, R. I. H. McKenzie, G. Fleischmann   +2 more
openaire   +1 more source

Recurrent Selection for Partial Resistance to Crown Rust in Oat

Crop Science, 2002
Crown rust (caused by the fungus Puccinia coronata Cda. f. sp. avenae Eriks.) is a major disease of cultivated oat (Avena sativa L.). Partial resistance is a form of incomplete resistance characterized by a reduced rate of epidemic development and is potentially more durable than complete race‐specific resistance.
Juan E. Díaz‐Lago, Deon D. Stuthman, Tabaré E. Abadie   +2 more
openaire   +1 more source

Are fungicide applications to control crown rust of oat beneficial?

Canadian Journal of Plant Science, 2014
May, W. E., Ames, N., Irvine, R. B., Kutcher, H. R., Lafond, G. P. and Shirtliffe, S. J. 2014. Are fungicide applications to control crown rust of oat beneficial? Can. J. Plant Sci. 94: 911–922. Crown rust (Puccinia coronata Corda f. sp. avenae Eriks.) negatively impacts seed quality and yield in oat (Avena sativa L.) in rust-prone areas of eastern ...
W. E. May, N. Ames, R. B. Irvine, H. R. Kutcher, G. P. Lafond, S. J. Shirtliffe   +5 more
openaire   +1 more source

Epidemiological and histological components of crown rust resistance in oat genotypes

European Journal of Plant Pathology, 2011
Crown rust, caused by Puccinia coronata f. sp. avenae, can cause significant damage in all regions where oats (Avena sativa L.) are cultivated. The primary means of controlling crown rust has been through genetic resistance, although in most cases resistance has been quickly overcome by the pathogen.
Felipe André Sganzerla Graichen, José Antônio Martinelli, Caroline de Lima Wesp, Luis Carlos Federizzi, Márcia Soares Chaves   +4 more
openaire   +1 more source

The Nature of Horizontal Resistance of Oats to Crown Rust

1986
Development of Puccinia coronata in an oat cultivar with horizontal resistance (HR) was assessed using fluorescence microscopy. The first visible response was fluorescence in mesophyll cell walls. This reaction occurred about 18 h after inoculation, and seemed to depend upon development of substomatal vesicles.
openaire   +1 more source

Mexican Oat Germ Plasm as a Source of Resistance to Stem Rust and Crown Rust

Plant Disease, 1996
One hundred and three lines and cultivars of oat used as progenitors in the oat breeding programs in Chihuahua and Chapingo, Mexico, were tested for resistance to stem rust and crown rust. Each line or cultivar was evaluated in the seedling stage to races NA8, 16, 25, 26, 27, 28, and 55 of Puccinia graminis f. sp. avenae (stem rust), and isolates CR13,
openaire   +1 more source