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.

scholarly journals Occurrence of Septoria tritici blotch in 1994-1996

2013 ◽  
Vol 50 (1-2) ◽  
pp. 11-26
Author(s):  
Czesław Zamorski ◽  
Bogdan Nowicki ◽  
Ewa Mirzwa-Mróz
Keyword(s):  
Winter Wheat ◽  
Weather Condition ◽  
Mycosphaerella Graminicola ◽  
Septoria Tritici Blotch ◽  
Septoria Tritici ◽  
Wheat Cultivars ◽  
Breeding Lines ◽  
High Infection ◽  
Winter Wheat Cultivars ◽  
Very High

The aim of the work was to study an occurrence and intensity of septoria tritici blotch on wheat in different regions of Poland as well as reaction of winter wheat cultivars and breeding lines to infection by <em>Mycosphaerella graminicola</em> (Fuckel) Schroeter (an. <em>Septoria tritici</em> ( Rob. ex Desm .) under field conditions. Observation conducted during 1994-1996 indicated on occurrence of septoria tritici blotch each year and on important infection degree of winter wheat by <em>Mycosphaerella gruminicola</em> in some regions of the country. The highest infection was noted in 1995 and the lowest in 1994. Infection degree for majority of cultivars was quite high. Some cultivars and lines were characterized by very high infection. Among them were the old (Kujawianka Więcławska and Wysokolitewka Sztywnosłoma) and the newest (Tercja) cultivars. On some old cultivars (Leszczyńska Wczesna and Żelazna) even no traces of infection were observed although favourable weather condition existance and the presence of neighbourhood diseased plants. Field observation of cultivars and breeding lines showed different reaction of tested wheat genotypes to <em>Mycosphaerella graminicola</em> infection.

scholarly journals Reactions of winter wheat to Mycosphaerella graminicola (anamorph Septoria tritici)

2012 ◽  
Vol 58 (1) ◽  
pp. 97-100
Author(s):  
Lubomir Věchet ◽  
Eliška Sychrová
Keyword(s):  
Winter Wheat ◽  
Mycosphaerella Graminicola ◽  
Septoria Tritici ◽  
Wheat Cultivars ◽  
High Occurrence ◽  
Winter Wheat Cultivars ◽  
Clear Plastic ◽  
Leaf Segments ◽  
Seedling Leaf

Reaction of six winter wheat cultivars and lines (Vlasta, Šárka, Charger, 00ST022, SG-U8044C a SG-U2113B) to <i>Mycosphaerella graminicola</i> isolate BR-331 and UH-05 on leaf segments of the detached second seedling leaf of cultivars placed on water agar with bezimidazole in clear plastic box were tested. The isolate BR-331 produced high occurrence of the disease in the cultivar Šárka, middle occurrence (the percentage covered by lesions bearing pycnidia) in the cultivar Vlasta and SG-U8044C and low occurrence in the line 00ST0022. The isolate UH-105 produced high occurrence in the cultivar 00ST022 and middle occurrence in the cultivar Vlasta. The cultivar Charger was resistant. The cultivar Šárka was attacked at least. Results show on different virulence of <i>M. graminicola</i> isolates to wheat cultivars.

scholarly journals Use of Detached Seedling Leaf Test to Evaluate Wheat Resistance to Septoria Tritici Blotch

2011 ◽  
Vol 41 (No. 3) ◽  
pp. 112-116 ◽  
Author(s):  
L. Věchet ◽  
M. Vojáčková
Keyword(s):  
Field Tests ◽  
Resistance Breeding ◽  
Septoria Tritici Blotch ◽  
Septoria Tritici ◽  
Wheat Cultivars ◽  
Breeding Lines ◽  
Winter Wheat Cultivars ◽  
Modern Wheat ◽  
Wheat Wild Relatives ◽  
Seedling Leaf

Two experimental sets of selected winter wheat cultivars, breeding lines, old Czech and Slovak landraces and wheat wild relatives were infected with three isolates (R-116, UH-105, BR-331) of Mycosphaerella graminicola (anamorph Septoria tritici) isolated in the Czech Republic. Groups of cultivars with different disease severity to all three isolates of the pathogen were found. Differences between old Czech and Slovak landraces and wild wheat relatives were larger than between modern wheat cultivars and breeding materials. In experiment one the isolate BR-331 differed significantly from the other two isolates in virulence to the tested modern wheat cultivars and breeding lines. The method is considered as suitable for preliminary screening in wheat resistance breeding or phytopathological testing and as a complement to field tests. &nbsp; &nbsp;

scholarly journals Reactions of winter wheat cultivars to Septoria nodorum Berk.

1989 ◽  
Vol 61 (5) ◽  
pp. 379-385
Author(s):  
Pirjo Peltonen ◽  
Sinikka Karjalainen ◽  
Reijo Karjalainen
Keyword(s):  
Winter Wheat ◽  
Flag Leaf ◽  
Adult Plant ◽  
Lesion Length ◽  
Septoria Nodorum ◽  
Wheat Cultivars ◽  
Breeding Lines ◽  
Seedling Plant ◽  
Plant Stage ◽  
Winter Wheat Cultivars

Twelve Finnish and foreign winter wheat cultivars and breeding lines were evaluated for resistance to Septoria nodorum at seedling and adult plant stage. Flag leaf severity varied between 6.5 and 20 % and ear severity between 2.5 and 10 %. In general, Cl 13091 and Skjaldar were the most resistant cultivars, while Hja 21614, Hja 21638, and Hankkijan Ilves were the most susceptible ones. Aura and Mironovskaja 808 were most resistant to ear infection, while Vakka and Hja 21638 were most susceptible. Assessment of susceptibility at the seedling stage was quite well correlated with ratings of adult plants in the field (r = 0.72). The correlation between lesion length and seedling plant Septoria severity was moderate (r = 0.68). Selection of wheat lines for Septoria resistance is discussed.

Nutritional and quality characteristics expressed in 31 perennial wheat breeding lines

2009 ◽  
Vol 24 (4) ◽  
pp. 285-292 ◽  
Author(s):  
Kevin M. Murphy ◽  
Lori A. Hoagland ◽  
Philip G. Reeves ◽  
Byung-Kee Baik ◽  
Stephen S. Jones
Keyword(s):  
Winter Wheat ◽  
Wheat Breeding ◽  
Washington State ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Interspecific Crosses ◽  
Wheat Cultivars ◽  
Mineral Concentration ◽  
Breeding Lines ◽  
Perennial Wheat

AbstractSoil erosion due to annual cropping on highly erodible farmland is a major ecological concern in the wheat growing regions of Washington State. In response to requests from farmers, the winter wheat breeding program at Washington State University has been developing perennial wheat selected from crosses between wild wheatgrass species and commonly grown annual wheat cultivars. In 2005/06, we conducted field trials of the most promising perennial wheat breeding lines derived from interspecific crosses between tall wheatgrass (Thinopyrum elongatum) and bread wheat (Triticum aestivum). Thirty-one perennial breeding lines and two annual winter wheat cultivars were evaluated for nutritional value in the form of grain mineral concentration, multiple baking and milling quality traits, and ease of grain threshability. The objective of this study was to identify the strengths and weaknesses of these post-harvest traits in the perennial wheat lines derived from these interspecific crosses. Mineral nutrient concentrations in the perennial lines were 44, 40, 24, 23, 32, 30 and 33% higher than the annual control cultivars for calcium, copper, iron, magnesium, manganese, phosphorus and zinc, respectively. The annual cultivars had a higher grain mineral content per unit area of land than the perennial lines, due primarily to the higher grain yields of the annual cultivars. Compared to the annual wheat cultivars, the perennial lines produced grain with smaller seed size, lower test weight and reduced flour yield, mix time and loaf volume. Protein content was 3.5–4.5% higher in the perennial lines than in the annual cultivars. The threshability index (TI) ranged from 0.63 to 0.89 in the perennials (μ=0.75); significantly lower than the mean TI of the annual cultivars (μ=0.97). The significant genotype×location interaction found for TI suggests that the variation in annual precipitation positively influenced some perennial lines to express greater threshability. In addition to transferring traits important to the perennial growth habit in wheat, the wild wheatgrass species also introduced beneficial characteristics (i.e. increased protein and mineral concentration) and deleterious traits (poor threshing grain and inferior baking qualities). This research gives researchers a platform from which to direct further research and selection in the development of perennial wheat.

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.

scholarly journals Resistance of wheat cultivars and breeding lines to septoria tritici blotch caused by isolates of Mycosphaerella graminicola in field trials

2001 ◽  
Vol 50 (3) ◽  
pp. 325-338 ◽  
Author(s):  
J. K. M. Brown ◽  
G. H. J. Kema ◽  
H.-R. Forrer ◽  
E. C. P. Verstappen ◽  
L. S. Arraiano ◽  
...  
Keyword(s):  
Mycosphaerella Graminicola ◽  
Field Trials ◽  
Septoria Tritici Blotch ◽  
Septoria Tritici ◽  
Wheat Cultivars ◽  
Breeding Lines
Sign in / Sign up

Export Citation Format

Share Document