Molecular characterization of field resistance to Fusarium head blight in two US soft red winter wheat cultivars

Fifty Triticum aestivum genotypes, including winter wheat cultivars from Martonvásár, were tested for fusarium head blight (FHB) resistance under artificially inoculated conditions. Field resistance, kernel infection, and the relative yield components (test weight, thousand kernel weight and kernel weight/heads) were examined following infection with Fusarium graminearum and F. culmorum isolates. Using data from two years, a number of Martonvásár varieties with above-average resistance to FHB were identified. On the basis of field infection, AUDPC values close to those of resistance sources were calculated for the variety Mv Emese, while 67.5% of the varieties tested had values which did not differ significantly from those of the control variety Arina. The yield components examined were modified substantially by artificial FHB infection. The thousand kernel weight and test weight of the variety exhibiting the greatest degree of infection were only 21.14% and 25.58%, respectively, of the untreated control. In one case the decline in the kernel weight/head was more than 90%. The results of multivariable statistical analysis indicated that among the Hungarian wheat genotypes, Bánkúti 1201, B9086-95 (a line derived from Bánkúti 1201), Mv Emese, Martonvásári4 and Mv Táltos could be grouped with the best sources of resistance. The experimental data revealed wide genetic variability for FHB resistance in the Martonvásár breeding stock.

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Evaluation and characterization of resistance to fusarium head blight caused by Fusarium culmorum in UK winter wheat cultivars

Plant Pathology ◽

10.1111/j.1365-3059.2006.01508.x ◽

2007 ◽

Vol 56 (2) ◽

pp. 264-276 ◽

Cited By ~ 39

Author(s):

N. Gosman ◽

R. Bayles ◽

P. Jennings ◽

J. Kirby ◽

P. Nicholson

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Fusarium Culmorum ◽

Wheat Cultivars ◽

Head Blight ◽

Winter Wheat Cultivars

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Meta-Analysis of the Effects of Triazole-Based Fungicides on Wheat Yield and Test Weight as Influenced by Fusarium Head Blight Intensity

Phytopathology ◽

10.1094/phyto-100-2-0160 ◽

2010 ◽

Vol 100 (2) ◽

pp. 160-171 ◽

Cited By ~ 69

Author(s):

P. A. Paul ◽

M. P. McMullen ◽

D. E. Hershman ◽

L. V. Madden

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Wheat Yield ◽

Test Weight ◽

Response To Treatment ◽

Yield Response ◽

Head Blight ◽

Yield Increase ◽

Soft Red Winter Wheat ◽

Red Winter Wheat

Multivariate random-effects meta-analyses were conducted on 12 years of data from 14 U.S. states to determine the mean yield and test-weight responses of wheat to treatment with propiconazole, prothioconazole, tebuconazole, metconazole, and prothioconazole+tebuconazole. All fungicides led to a significant increase in mean yield and test weight relative to the check (D; P < 0.001). Metconazole resulted in the highest overall yield increase, with a D of 450 kg/ha, followed by prothioconazole+tebuconazole (444.5 kg/ha), prothioconazole (419.1 kg/ha), tebuconazole (272.6 kg/ha), and propiconazole (199.6 kg/ha). Metconazole, prothioconazole+tebuconazole, and prothioconazole also resulted in the highest increases in test weight, with D values of 17.4 to 19.4 kg/m3, respectively. On a relative scale, the best three fungicides resulted in an overall 13.8 to 15.0% increase in yield but only a 2.5 to 2.8% increase in test weight. Except for prothioconazole+tebuconazole, wheat type significantly affected the yield response to treatment; depending on the fungicide, D was 110.0 to 163.7 kg/ha higher in spring than in soft-red winter wheat. Fusarium head blight (FHB) disease index (field or plot-level severity) in the untreated check plots, a measure of the risk of disease development in a study, had a significant effect on the yield response to treatment, in that D increased with increasing FHB index. The probability was estimated that fungicide treatment in a randomly selected study will result in a positive yield increase (p+) and increases of at least 250 and 500 kg/ha (p250 and p500, respectively). For the three most effective fungicide treatments (metconazole, prothioconazole+tebuconazole, and prothioconazole) at the higher selected FHB index, p+ was very large (e.g., ≥0.99 for both wheat types) but p500 was considerably lower (e.g., 0.78 to 0.92 for spring and 0.54 to 0.68 for soft-red winter wheat); at the lower FHB index, p500 for the same three fungicides was 0.34 to 0.36 for spring and only 0.09 to 0.23 for soft-red winter wheat.

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Fusarium Head Blight and Moniliformin Accumulation in Kernels of 18 Winter Wheat Cultivars Inoculated with Fusarium Avenaceum (3 Years Study)

Cereal Research Communications ◽

10.1007/bf03543810 ◽

1997 ◽

Vol 25 (3) ◽

pp. 673-675 ◽

Cited By ~ 6

Author(s):

Piotr Goliński ◽

Marian Kostecki ◽

Przemysław Kaptur ◽

Slawomir Wojciechowski ◽

Zygmunt Kaczmarek ◽

...

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Fusarium Avenaceum ◽

Wheat Cultivars ◽

Head Blight ◽

Winter Wheat Cultivars

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Inheritance of Fusarium head blight resistance in the soft red winter wheat Ernie

Theoretical and Applied Genetics ◽

10.1007/s00122-004-1852-0 ◽

2004 ◽

Vol 110 (3) ◽

pp. 454-461 ◽

Cited By ~ 21

Author(s):

S. Liu ◽

Z. A. Abate ◽

A. L. McKendry

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Fusarium Head Blight Resistance ◽

Blight Resistance ◽

Head Blight ◽

Soft Red Winter Wheat ◽

Red Winter Wheat

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Efficacy of Fungicide Applications During and After Anthesis Against Fusarium Head Blight and Deoxynivalenol in Soft Red Winter Wheat

Plant Disease ◽

10.1094/pdis-01-14-0091-re ◽

2014 ◽

Vol 98 (10) ◽

pp. 1387-1397 ◽

Cited By ~ 47

Author(s):

D. L. D'Angelo ◽

C. A. Bradley ◽

K. A. Ames ◽

K. T. Willyerd ◽

L. V. Madden ◽

...

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Field Experiments ◽

The Other ◽

Square Root ◽

Head Blight ◽

Soft Red Winter Wheat ◽

Untreated Check ◽

Red Winter Wheat ◽

Days After Anthesis

Seven field experiments were conducted in Ohio and Illinois between 2011 and 2013 to evaluate postanthesis applications of prothioconazole + tebuconazole and metconazole for Fusarium head blight and deoxynivalenol (DON) control in soft red winter wheat. Treatments consisted of an untreated check and fungicide applications made at early anthesis (A), 2 (A+2), 4 (A+4), 5 (A+5), or 6 (A+6) days after anthesis. Six of the seven experiments were augmented with artificial Fusarium graminearum inoculum, and the other was naturally infected. FHB index (IND), Fusarium damaged kernels (FDK), and DON concentration of grain were quantified. All application timings led to significantly lower mean arcsine-square-root-transformed IND and FDK (arcIND and arcFDK) and log-transformed (logDON) than in the untreated check; however, arcIND, arcFDK, and logDON for the postanthesis applications were generally not significantly different from those for the anthesis applications. Relative to the check, A+2 resulted in the highest percent control for both IND and DON, 69 and 54%, respectively, followed by A+4 (62 and 52%), A+6 (62 and 48%), and A (56 and 50%). A+2 and A+6 significantly reduced IND by 30 and 14%, respectively, relative to the anthesis application. Postanthesis applications did not, however, reduce DON relative to the anthesis application. These results suggest that applications made up to 6 days following anthesis may be just as effective as, and sometimes more effective than, anthesis applications at reducing FHB and DON.

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Genome‐wide analysis and prediction of Fusarium head blight resistance in soft red winter wheat

Crop Science ◽

10.1002/csc2.20273 ◽

2020 ◽

Vol 60 (6) ◽

pp. 2882-2900 ◽

Cited By ~ 2

Author(s):

Dylan L. Larkin ◽

Amanda L. Holder ◽

R. Esten Mason ◽

David E. Moon ◽

Gina Brown‐Guedira ◽

...

Keyword(s):

Winter Wheat ◽

Fusarium Head Blight ◽

Fusarium Head Blight Resistance ◽

Blight Resistance ◽

Head Blight ◽

Genome Wide Analysis ◽

Soft Red Winter Wheat ◽

Genome Wide ◽

Red Winter Wheat

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Quantifying the Effects of Fusarium Head Blight on Grain Yield and Test Weight in Soft Red Winter Wheat

Phytopathology ◽

10.1094/phyto-08-14-0215-r ◽

2015 ◽

Vol 105 (3) ◽

pp. 295-306 ◽

Cited By ~ 39

Author(s):

Jorge David Salgado ◽

Laurence V. Madden ◽

Pierce A. Paul

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Fusarium Head Blight ◽

Fixed Effects ◽

Mixed Model ◽

Linear Mixed Model ◽

Test Weight ◽

Head Blight ◽

Soft Red Winter Wheat ◽

Red Winter Wheat

Fusarium head blight (FHB), caused by the fungus Fusarium graminearum, is known to negatively affect wheat grain yield (YLD) and test weight (TW). However, very little emphasis has been placed on formally quantifying FHB–YLD and FHB–TW relationships. Field plots of three soft red winter wheat cultivars—‘Cooper’ (susceptible to FHB), ‘Hopewell’ (susceptible), and ‘Truman’ (moderately resistant)—were grown during the 2009, 2010, 2011, and 2012 seasons, and spray inoculated with spore suspensions of F. graminearum and Parastagonospora nodorum to generate a range of FHB and Stagonospora leaf blotch (SLB) levels. FHB index (IND) and SLB were quantified as percent diseased spike and flag leaf area, respectively, and YLD (kg ha−1) and TW (kg m−3) data were collected. Using IND as a continuous covariate and cultivar (CV) and SLB as categorical fixed effects, linear mixed-model regression analyses (LMMR) were used to model the IND–YLD and IND–TW relationship and to determine whether these relationships were influenced by CV and SLB. The final models fitted to the data were of the generic form y = a + b (IND), where a (intercept) or b (slope) could also depend on other factors. LMMR analyses were also used to estimate a and b by combining the studies from these 4 years with an additional 16 experiments conducted from 2003 to 2013, and bivariate random-effects meta-analysis was used to estimate population mean b ([Formula: see text]) and a (ā) for the IND–YLD relationship. YLD and TW decreased as IND increased, with b ranging from −3.2 to −2.3 kg m−3 %−1 for TW. For the IND–YLD relationship, [Formula: see text] was −51.7 kg ha−1 %IND−1 and ā was 4,426.7 kg ha−1. Neither cultivar nor SLB affected the IND–YLD relationship but SLB affected a of the IND–TW regression lines, whereas cultivar affected b. Plots with the highest levels of SLB (based on ordinal categories for SLB) had the lowest a and Hopewell had the highest b. The level of IND at which a 50-kg m−3 reduction in TW was predicted to occur was 19, 16, and 22% for Cooper, Hopewell, and Truman, respectively. A yield loss of 1 MT ha−1 was predicted to occur at 19% IND. The rate of reduction in relative TW or YLD per unit increase in IND was between −0.39 and −0.32%−1 for TW and −1.17%−1 for YLD. Results from this study could be integrated into more general models to evaluate the economics of FHB management strategies.

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