scholarly journals Evaluation of resistance to Fusarium head blight in wheat using different sources of inoculum

2011 ◽  
Vol 47 (No. 4) ◽  
pp. 131-139 ◽  
Author(s):  
V. Šíp ◽  
J. Chrpová ◽  
L. Štočková
Keyword(s):  
Fusarium Head Blight ◽  
Yield Components ◽  
Yield Loss ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Spray Inoculation ◽  
Symptom Scores ◽  
Winter Wheat Cultivars ◽  
Moderate Resistance ◽  
Different Sources

The response of four winter wheat cultivars, differing in resistance to Fusarium head blight (FHB), to spray inoculation with four selected Fusarium graminearum isolates, mixture of these isolates and frequently used F. culmorum isolate B was studied in five field and glasshouse experiments during 2008–2010. Analyses of variance showed highly significant main and interaction effects of cultivar, inoculum source and environment (year-trial) on all five examined traits indicative of disease severity, yield loss and accumulation of mycotoxins. The relations between traits were not evidently influenced by the used isolate. Resistance of host genotypes and environmental conditions accounted for a greater proportion of the total variation (8–36%) than the inoculation source (isolate) that substantially influenced the accumulation of the mycotoxin deoxynivalenol (12%), but expressed relatively low effects on symptom scores, percentage of fusarium damaged kernels and reductions of yield components (2–4%). Two-way and three-way interactions accounted for 25–40% of variation in the examined traits, which indicates great importance of multi-environment tests, using different Fusarium isolates for inoculation. Separate inoculation with F. graminearum isolates, differing in aggressiveness, did not appear to be more advantageous than their use in mixture that showed medium or below-average aggressiveness in all traits. The application of an isolate mixture could be recommended as a “less costly” alternative to inoculation with single isolates in trials repeated in different years and/or locations. It was indicated by these experiments that especially the detection of resistance/moderate resistance to FHB could be facilitated by the use of a carefully selected mixture of isolates. However, the application of aggressive isolates (isolate B of F. culmorum in these experiments) appeared to be beneficial to eliminate FHB susceptible materials in the breeding process.  

Association between yield loss and Fusarium head blight traits in resistant and susceptible winter wheat cultivars

2021 ◽  
Author(s):  
Radivoje Jevtić ◽  
Nina Skenderović ◽  
Vesna Župunski ◽  
Mirjana Lalošević ◽  
Branka Orbović ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Yield Loss ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Winter Wheat Cultivars

Field resistance of Martonvásár winter wheat cultivars against Fusarium head blight

2005 ◽  
Vol 52 (4) ◽  
pp. 351-359 ◽  
Author(s):  
K. Puskás ◽  
G. Vida ◽  
J. Komáromi ◽  
O. Veisz ◽  
Z. Bedő
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Yield Components ◽  
Kernel Weight ◽  
Field Resistance ◽  
Test Weight ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Winter Wheat Cultivars ◽  
Fhb Resistance

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.

scholarly journals Influence of Wheat Cultivar, Species of Fusarium, and Isolate Aggressiveness on the Efficacy of Fungicides for Control of Fusarium Head Blight

Plant Disease ◽  
2003 ◽  
Vol 87 (9) ◽  
pp. 1107-1115 ◽  
Author(s):  
Á. Mesterházy ◽  
T. Bartók ◽  
C. Lamper
Keyword(s):  
Fusarium Head Blight ◽  
Yield Loss ◽  
Wheat Cultivar ◽  
Wheat Cultivars ◽  
Cultivar Resistance ◽  
Head Blight ◽  
Winter Wheat Cultivars ◽  
Disease Pressure ◽  
Different Levels

Attempts to control Fusarium head blight (FHB) with fungicides have been highly variable. Variability is caused by cultivar resistance, fungicide efficacy, fungicide coverage, timing, and pathogen aggressiveness. In this research, fungicides were tested on winter wheat cultivars with different levels of resistance to FHB using different isolates of Fusarium graminearum and F. culmorum to evaluate the role of host resistance and isolate aggressiveness on severity of FHB. Fungicides were applied to groups of wheat heads to provide full coverage. Incidence and severity of FHB was measured by the severity of head symptoms, percentage of Fusarium-damaged kernels (FDK), yield loss, and deoxynivalenol (DON) contamination. Development of FHB was affected by fungicides, cultivars, fungal isolates, and most of the two-way interactions of these variables. Among the fungicides tested, those containing tebuconazole tended to be more effective in reducing FHB. Reduction of disease in susceptible cultivars may not be adequate to produce marketable yields under conditions of high disease pressure. In most cases, if a fungicide reduced FHB visual symptoms, similar decreases were detected in yield loss, DON concentration, and FDK reaction. In 1998, an increase in DON contamination compared with the Fusarium check was observed with azoxystrobin and carbendazim on the more susceptible cultivar. This increase in DON with some fungicide requires additional research. Research to develop more resistant cultivars, better spraying technology, and more effective fungicides is also needed.

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

1997 ◽  
Vol 25 (3) ◽  
pp. 673-675 ◽  
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

scholarly journals Reaction to Fusarium Head Blight (FHB) of Six New Wheat Cultivars Widely Grown in Transylvania

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Sardar AMIN ◽  
Marin ARDELEAN ◽  
Vasile MOLDOVAN ◽  
Rodica CADAR
Keyword(s):  
Grain Yield ◽  
Fusarium Head Blight ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Fusarium Spp ◽  
Developmental Progress ◽  
Progress Curve ◽  
Symptom Intensity ◽  
Winter Wheat Cultivars ◽  
Artificial Inoculations

Fusarium head blight (FHB), caused by Fusarium spp., has become one of the most destructive diseases in the world’s wheat growing areas , especially in the humid and semihumid regions (Paillard et al. 2004, Mesterhazy 1978, Stack & Mullen 1985; Kiecana 1987; Kiecana et al. 1988). Six winter wheat cultivars, recently released and widely grown in Trasylvania, have been evaluated for FHB resistance during 2006. The evaluation was made by means of artificial inoculations with Fusarium graminearum and assesment of symptom intensity by computing AUDPC index (Area Under Developmental Progress Curve). Based on these data, two cultivars (Dumbrava and Turda 195) were considered as resistant, two cultivars (Ardeal and Arieşan) as medium resistant and other two cultivars (Fundulea 4 and GK Öthalom) as susceptible to FHB. The reaction to FHB of the six tested cultivars, based on the postharvest indices, showed significant differences among these cultivars as far as the yield elements and the total grain yield were considered. Actually, in the resistant cultivars, both the total grain yield and some of the yield elements (spike wight, grain weght/spike and 1000 kernel weigt) were significantly less affected by FHB than in medium resistant and susceptible cultivars.

scholarly journals Genetic background for moderate resistance against fusarium head blight among winter wheat developed in the Forrest Steppe of Ukraine

2020 ◽  
Vol 26 ◽  
pp. 96-100
Author(s):  
A. V. Karelov ◽  
N. A. Kozub ◽  
I. I. Kucheriavy ◽  
O. I. Sozinova ◽  
I. O. Sozinov ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Common Wheat ◽  
Genetic Background ◽  
Resistance Allele ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Infection Level ◽  
Allelic State ◽  
Moderate Resistance

Aim. The aim of the work was to evaluate the genetic background of resistance to Fusarium head blight in common winter wheat cultivars based on the allelic state of the TDF_076_2D gene conferring tolerance against Fusarium graminearum Schwabe and F. culmorum (W.G.Sm.) Sacc. fungi. Methods. We studied 91 winter common wheat cultivars developed in the Institute of Plant Physiology and Genetics of NAS of Ukraine. A silica-based commercial kit was used for DNA extraction. For the allelic state detection, the INDEL1 marker co-segregating with the TDF_076_2D gene was used. Results. The frequency of the resistance allele according to the marker for the gene conferring moderate resistance to the Fusarium fungi made up 0.802. Conclusions. The majority of the common wheat cultivars from the studied sample carry the resistance allele of the gene of interest. The data obtained are consistent with the results of previous research for the wider sample of the winter and spring common wheat cultivars. The cultivars with confirmed resistance allele might show lower infection level in the field and serve as a source of the gene in marker assisted selection. Keywords: common wheat, disease resistance genes, Fusarium head blight, molecular markers.

Sign in / Sign up

Export Citation Format

Share Document