scholarly journals Banishing barberry: The history of Berberis vulgaris prevalence and wheat stem rust incidence across Britain

2020 ◽  
Vol 69 (7) ◽  
pp. 1193-1202 ◽  
Author(s):  
Gerry Barnes ◽  
Diane G. O. Saunders ◽  
Tom Williamson
Keyword(s):  
Stem Rust ◽  
Wheat Stem Rust ◽  
Berberis Vulgaris ◽  
History Of

FURTHER EVIDENCE OF RESISTANCE IN BERBERIS VULGARIS TO RACE 15B OF PUCCINIA GRAMINIS f. sp. TRITICI

1958 ◽  
Vol 36 (3) ◽  
pp. 351-355 ◽  
Author(s):  
G. J. Green ◽  
T. Johnson
Keyword(s):  
Common Wheat ◽  
Stem Rust ◽  
Wheat Variety ◽  
Circumstantial Evidence ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Berberis Vulgaris ◽  
Pure Cultures ◽  
The Common ◽  
Common Wheat Variety

Plants of common barberry (Berberis vulgaris L.) were inoculated to determine their reaction to race 15B of wheat stem rust (Puccinia graminis Pers. f. sp. tritici Erikss. & Henn.). Only resistant-type infections occurred on plants inoculated with two pure cultures of race 15B-4 (Can.). Strong circumstantial evidence for the resistance of common barberry to race 15B was obtained from inoculations with sporidia from teliospores produced in the field. Sporidia from teliospores collected from the emmer wheat variety Vernal, which is selective for race 15B, produced only infections of a resistant type, and those from the common wheat variety Lee, also selective for 15B, caused both resistant and susceptible types of infections. Transfer of aeciospores to wheat from the susceptible type demonstrated that 15B was not present. Sporidia from teliospores on the varieties Reliance and Mentana, which are not selective for this race, caused infections of a susceptible type. Resistant-type and susceptible-type infections appeared when barberry leaves were infected with races 29 and 48A.

RESISTANCE OF COMMON BARBERRY (BERBERIS VULGARIS L.) TO RACE 15B OF WHEAT STEM RUST

1954 ◽  
Vol 32 (3) ◽  
pp. 378-379 ◽  
Author(s):  
T. Johnson ◽  
G. J. Green
Keyword(s):  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Berberis Vulgaris ◽  
Necrotic Spots

Twenty-four plants of barberry, Berberis vulgaris L., were inoculated with sporidia derived from several collections of race 15B of Puccinia graminis var. tritici Erikss. & Henn. Only five small pustules of aecia were produced on these plants; all other infections were limited to small necrotic spots or very small pustules of pycnia.

Can Losses from Wheat Stem Rust be Eliminated in North America? 1

Crop Science ◽  
1971 ◽  
Vol 11 (1) ◽  
pp. 97-99 ◽  
Author(s):  
D. R. Knott
Keyword(s):  
North America ◽  
Stem Rust ◽  
Wheat Stem Rust

Retrospective analysis of virulence of the North Caucasian population of wheat stem rust pathogen

2019 ◽  
Vol 1 (81) ◽  
pp. 85-90
Author(s):  
Galina Volkova ◽  
◽  
Olesya Miroshnichenko ◽  
Olga Tarancheva ◽  
◽  
...  
Keyword(s):  
Retrospective Analysis ◽  
Stem Rust ◽  
Caucasian Population ◽  
Wheat Stem Rust ◽  
The North ◽  
Rust Pathogen

A Weather-Based Simulation Model for the Development of Wheat Stem Rust Epidemics

2021 ◽  
Author(s):  
Serena Baiocco ◽  
Federico Cavina ◽  
Gianfranco Pradolesi
Keyword(s):  
Simulation Model ◽  
Stem Rust ◽  
Wheat Stem Rust

scholarly journals Field resistance to wheat stem rust in durum wheat ( Triticum turgidum ssp. durum ) accessions deposited at the USDA National Small Grains Collection

Crop Science ◽  
2021 ◽  
Author(s):  
Pablo D. Olivera ◽  
Worku D. Bulbula ◽  
Ayele Badebo ◽  
Harold E. Bockelman ◽  
Erena A. Edae ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Stem Rust ◽  
Triticum Turgidum ◽  
Field Resistance ◽  
Wheat Stem Rust ◽  
Small Grains

scholarly journals Large-Scale Atmospheric Dispersal Simulations Identify Likely Airborne Incursion Routes of Wheat Stem Rust Into Ethiopia

2017 ◽  
Vol 107 (10) ◽  
pp. 1175-1186 ◽  
Author(s):  
M. Meyer ◽  
L. Burgin ◽  
M. C. Hort ◽  
D. P. Hodson ◽  
C. A. Gilligan
Keyword(s):  
Stem Rust ◽  
Large Scale ◽  
Dispersion Model ◽  
Fungal Spores ◽  
Disease Outbreaks ◽  
Particle Dispersion ◽  
East African ◽  
Wheat Stem Rust ◽  
Sub Saharan ◽  
African Rift

In recent years, severe wheat stem rust epidemics hit Ethiopia, sub-Saharan Africa’s largest wheat-producing country. These were caused by race TKTTF (Digalu race) of the pathogen Puccinia graminis f. sp. tritici, which, in Ethiopia, was first detected at the beginning of August 2012. We use the incursion of this new pathogen race as a case study to determine likely airborne origins of fungal spores on regional and continental scales by means of a Lagrangian particle dispersion model (LPDM). Two different techniques, LPDM simulations forward and backward in time, are compared. The effects of release altitudes in time-backward simulations and P. graminis f. sp. tritici urediniospore viability functions in time-forward simulations are analyzed. Results suggest Yemen as the most likely origin but, also, point to other possible sources in the Middle East and the East African Rift Valley. This is plausible in light of available field surveys and phylogenetic data on TKTTF isolates from Ethiopia and other countries. Independent of the case involving TKTTF, we assess long-term dispersal trends (>10 years) to obtain quantitative estimates of the risk of exotic P. graminis f. sp. tritici spore transport (of any race) into Ethiopia for different ‘what-if’ scenarios of disease outbreaks in potential source countries in different months of the wheat season.

THE INHERITANCE OF PATHOGENICITY IN RACES 111 AND 29 OF WHEAT STEM RUST

1969 ◽  
Vol 11 (2) ◽  
pp. 266-274 ◽  
Author(s):  
K. N. Kao ◽  
D. R. Knott
Keyword(s):  
Stem Rust ◽  
Rust Resistance ◽  
Single Gene ◽  
Stem Rust Resistance ◽  
Wheat Stem Rust ◽  
Complementary Genes

The inheritance of pathogenicity in wheat stem rust was studied in selfed cultures of races 29 and 111, F1 and F2 cultures of a cross between the two races and cultures from a backcross to race 29. The various cultures were tested on Marquis and Prelude and on a series of lines of these varieties carrying single genes for stem rust resistance. Virulence on Sr 5, Sr 6, Sr 8, Sr 9a, Sr 14 and a gene in Marquis was recessive and in each case there was a single gene for virulence corresponding to each gene for resistance. Virulence on Sr 1 was possibly controlled by two dominant complementary genes. There appeared to be two alleles for virulence on Prelude, one dominant and one recessive.

Wheat stem rust leaf disease detection using image processing

2021 ◽  
Author(s):  
Basim Khalid. Mohammed Ali Al-windi ◽  
Amel H. Abbas ◽  
Mohammed Shakir Mahmood
Keyword(s):  
Image Processing ◽  
Stem Rust ◽  
Disease Detection ◽  
Wheat Stem Rust ◽  
Leaf Disease
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