Reactions of winter wheat, spring wheat, and barley cultivars to mechanical inoculation with wheat streak mosaic virus

2021 ◽  
Author(s):  
Uta McKelvy ◽  
Monica Brelsford ◽  
Jamie Sherman ◽  
Mary Burrows
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Spring Wheat ◽  
Wheat Streak Mosaic Virus ◽  
Yield Response ◽  
Breeding Line ◽  
Wheat Cultivars ◽  
Yield Losses ◽  
Breeding Lines ◽  
Barley Cultivars

Wheat streak mosaic virus (WSMV) causes sporadic epidemics in Montana which can threaten profitability of the state’s small grains production. One challenge for WSMV management in Montana is that most commercially available wheat and barley cultivars are susceptible to WSMV or their performance under WSMV pressure is unknown. In a three-year field study from 2017 to 2019 winter wheat, spring wheat, and barley cultivars were evaluated for their susceptibility to WSMV and yield performance under WSMV pressure. Plants were mechanically inoculated and WSMV incidence was assessed using DAS-ELISA. There was effective resistance to WSMV in breeding line CO12D922, which had consistently low WSMV incidence, highlighting promising efforts in the development of WSMV-resistant winter wheat cultivars. Moderate WSMV incidence and minor yield losses were observed from WSMV infection of commercial winter wheat ‘Brawl CL Plus’ and MSU breeding line MTV1681. Spring wheat cultivars in this study had high WSMV incidence of up to 100 % in ‘Duclair,’ ‘Egan,’ and ‘McNeal.’ High WSMV incidence was associated with severe yield losses as high as 85 % for Duclair and ‘WB9879CL’ in 2019, demonstrating a high degree of susceptibility to WSMV inoculation. Barley cultivars had considerably lower WSMV incidence compared to spring and winter wheat. Grain yield response to WSMV inoculation was variable between barley cultivars. The study provided an experimental basis for cultivar recommendations for high WSMV pressure environments and identified breeding lines and cultivars with potential resistance traits of interest to breeding programs that aim to develop WSMV-resistant cultivars.

scholarly journals Wheat and Barley Susceptibility and Tolerance to Multiple Isolates of Wheat streak mosaic virus

Plant Disease ◽  
2015 ◽  
Vol 99 (10) ◽  
pp. 1383-1389 ◽  
Author(s):  
Erik Lehnhoff ◽  
Zachariah Miller ◽  
Fabian Menalled ◽  
Dai Ito ◽  
Mary Burrows
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Great Plains ◽  
Spring Wheat ◽  
Virus Disease ◽  
Wheat Yield ◽  
Wheat Streak Mosaic Virus ◽  
Yield Losses ◽  
Wheat Varieties ◽  
Cultivar Screening

One of the greatest virus disease threats to wheat production in the Great Plains of the USA is Wheat streak mosaic virus (WSMV). Breeding programs have developed wheat varieties that are resistant or tolerant to WSMV infection, but these characteristics are climate dependent, and may also vary by WSMV isolate. We tested 10 spring and nine winter wheat (Triticum aestivum) varieties and two barley (Hordeum vulgare) varieties for resistance and tolerance to one WSMV isolate over four years. In spring wheat and barley, there were year by cultivar interactions in terms of resistance and tolerance. However, in winter wheat, yield losses due to WSMV were relatively consistent across years and varieties. Additionally, we tested the impacts of three WSMV isolates individually and in a mixture on twelve, two, and twelve varieties of spring wheat, barley, and winter wheat, respectively. Resistance and tolerance varied by isolate and cultivar, but there were no isolate by cultivar interactions. For spring wheat and barley, yield impacts were greater for two of the three single isolates than for the isolate mixture, whereas in winter wheat, the isolate mixture caused greater yield losses than the individual isolates. Overall, the results indicate that resistance and tolerance phenotypes were influenced by environmental conditions and by WSMV isolate or combination of isolates, suggesting that cultivar screening should be conducted over multiple years and with multiple virus isolates.

scholarly journals Impacts of Crop Variety and Time of Inoculation on the Susceptibility and Tolerance of Winter Wheat to Wheat streak mosaic virus

Plant Disease ◽  
2014 ◽  
Vol 98 (8) ◽  
pp. 1060-1065 ◽  
Author(s):  
Z. Miller ◽  
F. Menalled ◽  
D. Ito ◽  
M. Moffet ◽  
M. Burrows
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Great Plains ◽  
Disease Risk ◽  
Wheat Yield ◽  
Wheat Streak Mosaic Virus ◽  
Northern Great Plains ◽  
Yield Losses ◽  
South Central ◽  
The Impact

Plant genotype, age, size, and environmental factors can modify susceptibility and tolerance to disease. Understanding the individual and combined impacts of these factors is needed to define improved disease management strategies. In the case of Wheat streak mosaic virus (WSMV) in winter wheat, yield losses and plant susceptibility have been found to be greatest when the crop is exposed to the virus in the fall in the central and southern Great Plains. However, the seasonal dynamics of disease risk may be different in the northern Great Plains, a region characterized by a relatively cooler fall conditions, because temperature is known to modify plant–virus interactions. In a 2-year field study conducted in south-central Montana, we compared the impact of fall and spring WSMV inoculations on the susceptibility, tolerance, yield, and grain quality of 10 winter wheat varieties. Contrary to previous studies, resistance and yields were lower in the spring than in the fall inoculation. In all, 5 to 7% of fall-inoculated wheat plants were infected with WSMV and yields were often similar to uninoculated controls. Spring inoculation resulted in 45 to 57% infection and yields that were 15 to 32% lower than controls. Although all varieties were similarly susceptible to WSMV, variations in tolerance (i.e., yield losses following exposure to the virus) were observed. These results support observations that disease risk and impacts differ across the Great Plains. Possible mechanisms include variation in climate and in the genetic composition of winter wheat and WSMV across the region.

scholarly journals Selenium in colour-grained winter wheat and spring tritordeum

2017 ◽  
Vol 63 (No. 7) ◽  
pp. 315-321
Author(s):  
Phuong LE Minh ◽  
Lachman Jaromír ◽  
KOTÍKOVÁ Zora ◽  
Orsák Matyáš ◽  
MICHLOVÁ Tereza ◽  
...  
Keyword(s):  
Czech Republic ◽  
Winter Wheat ◽  
Dry Matter ◽  
Breeding Line ◽  
Wheat Cultivars ◽  
Crop Season ◽  
Breeding Lines ◽  
Genetic Potential ◽  
Winter Wheat Cultivars ◽  
Grain Colour

Eighteen winter wheat cultivars with different grain colour (purple-, blue-, yellow- and red-grained) and three spring tritordeum yellow-grained cultivars and breeding lines were assessed for grain selenium (Se) content from the crop season 2014/2015 on the experimental field Agrotest fyto, Ltd., Kroměříž (Czech Republic). Se content has shown to be genotype dependent, with the highest contents in control red-grained cv. Bohemia (0.235 mg/kg dry matter (DM)) and yellow-grained cv. Bona Vita (0.229 mg/kg DM), and breeding lines V2 10–16 (blue-grained), KM 53–14 (blue-grained) and V2 15–16 (yellow-grained) winter wheats. In new spring tritordeums, average Se content was comparable (0.039 mg/kg DM) with purple pericarp wheats (0.042 mg/kg DM); in wheats with blue aleurone and yellow endosperm it was higher (0.057 mg/kg DM and 0.069 mg/kg DM). Although in most cultivars the Se contents were not significantly different, statistically significant differences were determined between the cvs. Bohemia and Bona Vita with the highest Se content and breeding line V2 31–16 with the lowest Se content as well as between the cv. Bohemia and breeding line KM 178–14. Grain colour of wheat cultivars and breeding lines affected Se content, so possible wheat genetic resources for use in the breeding process can be assessed. Diversity in certain wheat accessions offers genetic potential for developing cultivars with better ability to accumulate beneficial Se micronutrient in grains.

Generation means analysis of wheat streak mosaic virus resistance in winter wheat

Euphytica ◽  
2004 ◽  
Vol 139 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Frederick Hakizimana ◽  
Amir M.H. Ibrahim ◽  
Marie A.C. Langham ◽  
Jackie C. Rudd ◽  
Scott D. Haley
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Virus Resistance ◽  
Wheat Streak Mosaic Virus ◽  
Generation Means ◽  
Generation Means Analysis

scholarly journals Wheat streak mosaic virus detected in winter wheat in Lithuania

2015 ◽  
Vol 102 (1) ◽  
pp. 111-114 ◽  
Author(s):  
Laima Urbanavičienė ◽  
Donatas Šneideris ◽  
Marija Žižytė
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Wheat Streak Mosaic Virus

scholarly journals Reaction of winter wheat genotypes to infection by Mycosphaerella graminicola(Fuckel) Schroeter

2013 ◽  
Vol 55 (1) ◽  
pp. 233-246
Author(s):  
Ewa Mirzwa-Mróz ◽  
Czesław Zamorski
Keyword(s):  
Winter Wheat ◽  
Broad Spectrum ◽  
Mycosphaerella Graminicola ◽  
Wheat Breeding ◽  
Septoria Tritici ◽  
Wheat Cultivars ◽  
Breeding Lines ◽  
Wheat Genotypes ◽  
Winter Wheat Cultivars

The response of Polish winter wheat genotypes to <i>M.graminicola</i> (preliminary experiments and cultivar collections) was observed in different regions of Poland. Observations were carried out in 1995-1999. The winter wheat genotypes showed a broad spectrum of reaction to this pathogen. Between 1997 and 1999 the highest degree of infection on winter wheat breeding lines was noted in Kończewice. During this time no genotypes free from infection were observed (preliminary breeding experiments). Cultivars with no symptoms of <i>Septoria tritici</i> blotch (Leszczyńska Wczesna and Żelazna) were found among old genotypes in Słupia Wielka only in earlier experiments (1995-1996). In the years 1997-1999 the winter wheat cultivars were classified into groups on the basis of their response to the pathogen. The degree of infection for the majority cultivars was quite high.

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