Results 141 to 150 of about 1,787 (184)

Virulence Patterns of Oat Crown Rust in Australia – Season 2022

Plant Disease, 2023
Puccinia coronata f. sp. avenae (Pca) is an important foliar pathogen of oat which causes crown rust disease. The virulence profile of 48 Pca isolates derived from different locations in Australia was characterized using a collection of oat lines often utilized in rust surveys in the United States and Australia.
Eva C. Henningsen, David Lewis, Duong T. Nguyen, Jana Sperschneider, Shahryar F. Kianian, Eric Stone, Peter N. Dodds, Melania Figueroa   +7 more
openaire   +2 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

SEEDLING REACTIONS OF WHEAT VARIETIES TO STEM RUST AND LEAF RUST AND OF OAT VARIETIES TO STEM RUST AND CROWN RUST

Canadian Journal of Research, 1940
A study of the rust reactions of wheat varieties to 20 physiologic races of stem rust has shown that several varieties of the vulgare type, namely, McMurachy, Eureka, and several strains from Kenya, East Africa, are immune in the seedling stage at ordinary greenhouse temperatures (55° F. to 80° F. daily).
Margaret Newton, T. Johnson, B. Peturson
openaire   +1 more source

Crown rust resistance in ryegrasses

1999
Reciprocal crosses between Lolium multiflorum plants and between L. multiflorum and L. perenne plants, which were either resistant or susceptible to crown rust were performed and the mode of inheritance of the resistance was analysed. In the crosses in which the resistant plants Axis-1 or Axis-2 were involved, a maternal type of inheritance was ...
E. Adams, M. De Loose, J. Baert, A. Ghesquiere, A. Depicker, E. Van Bockstaele, I. Roldán-Ruiz   +6 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

Biology and Genetics of Crown Rust Disease in Ryegrasses

Crop Science, 2010
ABSTRACTThe most serious foliar disease of perennial ryegrass (Lolium perenne L.) is crown rust (caused by Puccinia coronata Corda f.sp. lolii Brown). Progress in resistance breeding using recurrent selection has been slow, due to lack of genetic knowledge. Puccinia coronata is a basidiomycete fungus with a complex life‐cycle involving both asexual and
Dracatos, P. M., Cogan, N. O. I., Keane, P. J., Smith, K. F., Forster, J. W.   +4 more
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Consistency of crown rust evaluation in ryegrass cultivars.

Communications in agricultural and applied biological sciences, 2011
Crown rust (Puccinia coronata) is the most important leaf disease in forage ryegrasses (Lolium spp.). In order to evaluate the stability in space and time of crown rust resistance a multisite rust evaluation trial was established by the European breeders association Eucarpia ( Fodder Crops Section).
J, Baert, A, Ghesquiere, M, Vandewalle
openaire   +1 more source

Assessment of virulence patterns in crown rust populations

Canadian Journal of Botany, 1968
Two methods of determining the virulence pattern of oat crown rust, Puccinia coronata f. sp. avenae, populations collected in 1965, 1966, and 1967, in Eastern and Western Canada were compared. The results with a single-pustule isolate from each of 50 field collections were as accurate as those obtained with two single-pustule isolates from 100 or more
openaire   +1 more source

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