Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "head" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-9 z 9
    Tytuł:
    Evaluation of oat germplasm for resistance to Fusarium Head Blight.
    Autorzy:
    Gagkaeva, T.
    Gavrilova, O.
    Yli-Mattila, T.
    Loskutov, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199605.pdf
    Data publikacji:
    2011-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Avena
    disease
    Fusarium
    germplasm
    kernel
    method
    resistance
    Opis:
    The objectives of this study were to screen the VIR Avena germplasm collection for Fusarium head blight (FHB) resistance and to identify the resistant oat genotypes by using the different scoring of the disease. After artificial inoculation harvested grain samples were assays on the combination of three parameters: percentage of Fusarium damaged kernels (FDK), DNA of trichothecene-producing Fusarium fungi and mycotoxin accumulation. The clear correlation between the parameters for every individual genotype was not detected. The results support the several components of resistance to Fusarium head blight in oats (invasion, spreading and mycotoxin accumulation), which are controlled by different genetic systems. The hull-less genotypes consid- ered to be more resistant in the Avena germplasm. Seven landraces genotypes and five cultivars originated from Asian region and two cultivars originated from European region seem to be suitable genetic resources for resistance to FHB.
    Źródło:
    Plant Breeding and Seed Science; 2011, 64; 15-22
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of fungicide application on Wheat Head Blight, occurrence of Fusarium spp. and mycotoxin production.
    Autorzy:
    Baturo-Cieśniewska, A.
    Lukanowski, A.
    Kolenda, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199596.pdf
    Data publikacji:
    2011-06-21
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Fusarium
    mycotoxins
    fungicides
    azoxystrobin
    metconazole
    Opis:
    The aim of the study was to determine if azoxystrobin and metconazole used for the control of wheat FHB at half, full, and quarter more the recommended dose rate may affect in differentiated way on the occurrence of Fusarium spp. and their ability to mycotoxin production in harvested grain, in wheat ears artificially inoculated with two DON-producing isolates of F. culmorum. Macroscopic evaluation showed high incidence of fusariosis. Plant health in the plots where the heads were artificially inoculated and fungicide was not applied was similar to the protected ones. Only increasing the dose metconazole resulted in a stronger reduction of fusariosis. The advantageous effect of azoxystrobin was not observed. Mycological analysis of harvested grain showed the presence of a number of F. culmorum, but from samples sprayed with metconazole it was isolated in smaller quantities. Also F. avenaceum, F. graminearum, F. poae and F. tricinctum were isolated. Molecular analysis showed the presence of F. culmorum in all samples of harvested grain. Also genes from Tri cluster were identified, involved in the synthesis of type-A and type-B trichothecenes - especially DON and 3Ac-DON. Chromatography revealed the presence of small quantities of mycotoxins. In all samples DON and 3Ac-DON were predominant. In general, F. culmorum isolate, which caused weaker symptoms of FHB and was less numerously isolated from grain that the other one, produced smaller amounts of mycotoxins. Samples protected with azoxystrobin contain the largest quantities of DON. Effect of different doses of fungicides on the number of mycotoxins was not clearly established...
    Źródło:
    Plant Breeding and Seed Science; 2011, 63; 29-38
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A different path to the summit of Fusarium Head Blight resistance in wheat: developing germplasm with a systemic approach.
    Autorzy:
    Comeau, A.
    Langevin, F.
    Caetano, V.R
    Haber, S.
    Savard, M.E.
    Voldeng, H.
    Fedak, G.
    Dion, Y.
    Rioux, S.
    Gilbert, J.
    Martin, R.A.
    Eudes, F.
    Scheeren, P.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199597.pdf
    Data publikacji:
    2011-06-21
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    barley yellow dwarf virus (BYDV)
    biotic and abiotic stresses
    Fusarium Head Blighy (FHB)
    genotypes
    resistance
    traits interaction
    Opis:
    In pursuing FHB resistance in wheat, 30 years of conventional breeding efforts in Eastern Canada have brought some progress. Substantial investment and the application in recent years of marker-assisted selection have to date, however, failed to produce agronomic lines that resist FHB as well as Sumai 3. We present here an alternative path, described as the systemic approach. Rather than seeking to introgress specific putative resistance genes, it subjects target germplasm to regimes of repeated cycles of multiple, interacting (biotic and abiotic) stresses in which desirable traits – not always adequately expressed in parental lines – are identified and selected. How can such a seemingly counterintuitive process work? The systemic approach views desired resistance as arising from the interactions of complex regulation mechanisms mediating how a host responds when a pathogen attacks. These constituents of resistance should thus not always be understood simply as discrete Mendelian units. In repeated rounds of selection, the systemic approach captures those rare individuals that embody optimal interactions of traits, and advances them as founders of lines that resist FHB more effectively than if selection focused on FHB alone. In Quebec, we have chosen to select wheat populations under combined pressure from barley yellow dwarf virus (BYDV) infection and FHB. Resistance to FHB and tolerance of BYDV are quantitative traits that interact. BYD increases both the direct losses from FHB and the production of mycotoxins. Selection under virus pressure, therefore, helps identify those individuals which express FHB resistance more effectively. Moreover, the correlates of virus tolerance (physiological efficiency, generalized stress tolerance and yield) point to those plants with better root traits, ability to produce biomass and yield stability. Together with numerous secondary criteria, such selection eliminates all but a few ‘winners’ in each round. Seen from a systemic perspective, the difficulty of identifying good progeny among descendants of crosses with Sumai 3 does not surprise. Deleterious linkages, pleiotropy and epistasis will usually combine in far from optimal expressions of the assembled genetic information. The systemic approach, by contrast, identifies in repeated cycles increasingly optimized expressions of genes, allowing all potential sources of resistance to be explored. Thus resistant lines can readily be derived from the crosses of susceptible parents, an objective rarely sought in conventional, focused approaches. Moreover, wheat plants respond to the systemic approach’s powerful stresses with enhanced epigenetic variation, raw material from which broader ranges of heritable traits can be selected. Germplasm that expresses a full range of attractive traits while resisting FHB as effectively as Sumai 3 can now be shown to be much more abundant than previously imagined. Perhaps this promise will entice more wheat workers to try a systemic approach...
    Źródło:
    Plant Breeding and Seed Science; 2011, 63; 39-48
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetics of deoxynivalenol (DON) contamination caused by Fusarium head blight in hybrid rye.
    Autorzy:
    Miedaner, T.
    Wortmann, H.
    Geiger, H. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2198905.pdf
    Data publikacji:
    2003-12-21
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Fusarium culmorum
    hybrid breeding
    mycotoxins
    population parameters
    Secale cereale
    Opis:
    Head blight caused by Fusarium culmorum or F. graminearum affects all cereals including winter rye (Secale cereale L.). Besides yield and quality losses, grain is contaminated with the mycotoxin deoxynivalenol (DON) that is harmful to animals and humans. We analysed 76 self-fertile S2 lines and their corresponding testcrosses for head blight resistance and DON concentration in the grain by inoculating them with an aggressive isolate of F. culmorum at two locations in Southwestern Germany in 2000. Disease severity at both locations was low with mean ratings from 2.7 to 3.4 on a 1-9 scale (1=healthy), but still DON occurred in considerable amounts (11.4 - 15.0 mg kg-1). Genotypic variance was significant (P=0.01) in all instances, genotype-location interaction and error variances were more important for DON concentration resulting in a lower heritability of this trait. No association between S2 lines and their testcrosses was found for head blight rating or DON concentration (r = 0.33 and 0.19, respectively). The coefficient of correlation between head blight rating and DON concentration was low for the S2 lines and medium for the testcrosses (r=0.24 and 0.60, P=0.05 and P=0.01, resp.). The hybrid rye breeder should select predominantly on testcross performance. Selection for low head blight ratings should result in lower DON concentrations in the grain also. In later generations, DON should be analysed additionally to exploit the maximum selection gain possible.
    Źródło:
    Plant Breeding and Seed Science; 2003, 48; 69-78
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Screening results of diverse spring barley (Hordeum vulgare L.) varieties and breeding lines for resistance to Fusarium Head Blight.
    Autorzy:
    Usele, G.
    Legzdina, L.
    Beinarovica, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199627.pdf
    Data publikacji:
    2011-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Fusarium culmorum
    Hordeum vulgare
    FHB resistance
    Opis:
    Fusarium head blight (FHB, scab) is a widespread disease of cereals, including barley (Hordeum vulgare L.), causing substantial yield and quality loss. Varieties with resistance is provide the greatest potential for reducing FHB. In the present study, we adapted cut-spike method for screening FHB severity among 126 spring barley genotypes. The collection consisted of Latvian varieties and perspective breeding lines and foreign varieties with specific quality traits important for food purposes and resistance to several diseases. Screening was repeated for two years, 2008 and 2009. Differences between genotypes in FHB resistance were observed. Two years data showed that genotype has a significant effect on FHB resistance (p<0.001) and genotype effect on resistance was 41.6%. Differences between FHB resistance of accessions of contrasting morphological traits and origin were tested. Only significant difference were found between cowered and hulless barley. There was no significant correlation between plant height and FHB severity and between flow- ering date and FHB severity, but significant positive correlation (r=0.672, p≤0.05) were found between days from snowing to maturity and FHB severity. Together 15 genotypes (all with Latvian origin) on this study showed average FHB severity lower than 10%.  
    Źródło:
    Plant Breeding and Seed Science; 2011, 64; 147-152
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of fungicides on Fusarium spp. and their associated mycotoxins in naturally infected winter wheat grain.
    Autorzy:
    Suproniene, Skaidre
    Mankeviciene, Audrone
    Gaurilcikiene, Irena
    Powiązania:
    https://bibliotekanauki.pl/articles/2199624.pdf
    Data publikacji:
    2011-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Fusarium head blight
    Fusarium spp.
    fungicides
    mycotoxin
    winter wheat
    Opis:
    Field trials conducted at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and For- estry (central part of Lithuania) in 2009 were aimed to evaluate the effect of fungicides on Fusarium Head Blight (FHB) in a naturally infected field. A single application of dimoxystrobin + epoxiconazole (Swing Gold), prothioconazole (Proline), metconazole (Juventus), tebuconazole (Folicur), prothioconazole + tebu- conazole (Prosaro) was applied to winter wheat cv. ‘Zentos’ at the manufacturer’s recommended doses at anthesis (BBCH 65). The FHB incidence and severity were assessed at milk and hard maturity stages. The percentage of Fusarium infected grain and deoxynivalenol (DON), zearalenone (ZEN) and T-2 toxin (T-2) concentrations in harvested grain were determined. In all fungicide treated plots a significant reduction of FHB incidence and severity was determined; however the fungicides did not exert any effect on the amount of Fusarium–infected grain as compared with the untreated control. A reduction of  DON, ZEN and T-2 contents in grain was determined in tebuconazole treatments. Fusarium avenaceum (Fr.) Sacc, F. culmorum (W. G. Sm.) Sacc., F. poae (Peck) Wollenw, F. sporotrichioides Sherb. and F. tricinctum (Corda) Sacc were identi- fied in wheat grain, F. poae was prevalent.
    Źródło:
    Plant Breeding and Seed Science; 2011, 64; 123-130
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Introgression Breeding – Effects and Side Effects of Marker-based Introduction of Two Non-adapted Qtl for Fusarium Head Blight Resistance Into Elite Wheat
    Autorzy:
    Miedaner, T.
    von der Ohe, C.
    Korzun, V.
    Ebmeyer, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199602.pdf
    Data publikacji:
    2011-06-21
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    FHB
    QTL
    resistance
    wheat
    Opis:
    Fusarium head blight resistance (FHB) can be achieved by using improved adapted varieties as crossing partners or by a marker-assisted introgression of mapped QTL from non-adapted sources. In this long-term study Fhb1 on chromosome 3BS and Qfhs.ifa-5A located on chromosome 5A were introgressed into European elite spring and winter wheat to test effects on FHB resistance and side effects on agronomic performance and F. graminearum isolates and mixtures. The introgression of the QTL Fhb1 and Qfhs.ifa-5A from the Sumai 3-descendant CM82036 could be performed in the shortest possible way by marker-assisted backcrossing. They were both validated in European elite wheat background. Effects on FHB resistance were, on average, only about half of the effect in the original mapping populations. In the best phenotypically and marker-selected BC0 line of spring wheat FHB was reduced from 40 to 4.3% of disease symptoms by introgressing both QTL, in the best BC3 line of winter wheat the reduction was 28 and 37% for the moderately resistant and highly susceptible recurrent parent, respectively. Introgression of both QTL simultaneously did not result in significantly higher FHB resistance than introgression of only one of both QTL. Small significant negative effects on grain yield were detected in the Anthus but not in the Opus BC3F2:5 backcross population when both QTL were introgressed. Backcrossing with only Qfhs.ifa-5A did not reduce grain yield significantly. Differences in heading date, plant height and quality traits were in all cases small although often significant. Selection of lines with improved resistance level and similar high yield level like the recurrent parent was feasible. Stability of FHB resistance mediated by both QTL was stable across 22 Fusarium isolates from Europe and Canada and six binary mixtures. Competition effects between isolates in mixtures were obvious but could not be attributed to the resistance of the host. In conclusion, marker-based backcrossing is a feasible option for introgressing Fhb1 or Qfhs.ifa-5A QTL into the high-yielding, quality-oriented European wheat gene pool.
    Źródło:
    Plant Breeding and Seed Science; 2011, 63; 129-136
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Latest results in breeding winter wheat for resistance to Fusarium Head Blight in the Zagreb BC Institute.
    Autorzy:
    Tomasović, Slobodan
    Palaveršić, Branko
    Ikić, Ivica
    Mlinar, Rade
    Šarčević, Hrvoje
    Jukić, Katarina
    Ivanušić, Tomislav
    Powiązania:
    https://bibliotekanauki.pl/articles/2199626.pdf
    Data publikacji:
    2011-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Bc lines
    Fusarium graminearum
    FHB
    resistance
    testing
    winter wheat
    Opis:
    Fusarium head blight (Fusarium graminearum Schw.) is one of the most dangerous fungal diseases in wheat production decreasing grain yield up to 50% or more what depends on both environmental factors and genotype. Testing of inoculated artificially new Bc winter wheat lines for their resistance to FHB was the objective of the study. In 2008 and 2009 two and five lines of tested 12 new ones respectively were shown to be more resistant than Sana cultivar used as a standard. Majority of the winter wheat lines exceeded level of resistance standing out by Bc 7 and Bc 1 and Bc Lira variety as the highest yielding variety was registered by CCVR in 2009.
    Źródło:
    Plant Breeding and Seed Science; 2011, 64; 141-146
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of deoxynivalenol and nivalenol producing chemotypes of Fusarium graminearum isolated from durum wheat in different Italian regions.
    Autorzy:
    Prodi, A.
    Salomoni, D.
    Bertacchini, E.
    Alkadri, D.
    Pisi, A.
    Tonti, S.
    Alberti, I.
    Dal Prà, M.
    Pancaldi, D.
    Covarelli, L.
    Nipoti, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199616.pdf
    Data publikacji:
    2011-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    DON and NIV chemotypes
    durum wheat
    Fusarium Head Blight
    Tri12
    Opis:
    Durum wheat production in Italy is economically of great importance. Fusarium graminearum is the main fusarium head blight (FHB) causal agent in wheat, reducing both yield and grain quality. F. graminearum produces several mycotoxins and, among trichothecenes, deoxynivalenol (DON) and nivalenol (NIV) are the most studied for their toxicity towards humans and animals. DON-producing isolates can be further distin- guished on the basis of the predominant acetyl-DON derivative in 3-acetyldeoxynivalenol (3-ADON) or 15- acetyldeoxynivalenol (15-ADON). In order to evaluate possible mycotoxin contamination risks in food, it is very important to know which chemotype is the prevalent in a F. graminearum population. F. graminearum sensu stricto strains were collected from symptomatic durum wheat heads and grains of several naturally infected fields located mostly in Emilia – Romagna, The Marche, Lazio, Tuscany and Umbria. A multiplex PCR in the region of genes Tri12, located in the terminal gene cluster of trichothecenes, was used to characterize 187 single-spore isolates of F. graminearum as NIV, 3-ADON and 15-ADON chemotypes. All the three chemotypes were present in the F. graminearum population studied. The most frequent chemotype was 15-ADON (83.4%), followed by 3-ADON (10.7%) and NIV (5.9%). NIV-producing isolates were found only in Emilia-Romagna (3.5%), Umbria (33.3%) and The Marche (5.7%).
    Źródło:
    Plant Breeding and Seed Science; 2011, 64; 75-80
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies