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Resistance of cultivars and breeding lines of spring wheat to Fusarium culmorum and powdery mildew PDF

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Preview Resistance of cultivars and breeding lines of spring wheat to Fusarium culmorum and powdery mildew

JApplGenet46(1),2005,pp.35-40 Resistance of cultivars and breeding lines of spring wheat Fusarium culmorum to and powdery mildew HalinaWiœniewska1,KrzysztofKowalczyk2 1InstituteofPlantGenetics,PolishAcademyofSciences,Poznañ,Poland 2InstituteofGeneticsandPlantBreeding,AgriculturalUniversity,Lublin,Poland Abstract.TwelvePolishspringwheatcultivarsand18springwheataccessionsfromCIMMYT,Mexico,were examinedforresistancetoahighlypathogenicFusariumculmorumstrainKF846andpowderymildewin5-year fieldexperiments.Resistantwheatcultivars(Sumai3andFrontana)servedascontrols.Themeanpercentage ofFusarium-damagedkernels(%FDK)for5yearswaslowerinCIMMYTaccessions(16.7%)thaninPolish springcultivars(28.3%).InallPolishspringcultivars,%FDKwashigherthaninthecontrolcultivarsSumai3 andFrontana(12–20%).Themeandiseasescore(onascaleof1–9)forpowderymildew(naturalinfection)forall examinedcultivarsandlinesrangedfrom0to7andinthePolishspringcultivarswassignificantlylower(0–5). CultivarsEta,Henika,Ismena,JasnaandOlimpiawerefoundtobetheleastsusceptibletopowderymildewin fieldexperiments.Thelaboratoryhost-pathogentestswithBlumeriagraminisf.sp.triticiisolatesshowedthat only two cultivars were characterized by identical resistance patterns as the standard differential lines with documentedresistancegenes.CultivarAlkorahadthegenePm3d,andHenikahadPm5.ThegenePm3dwas identifiedincultivarsJasnaandEtaincombinationwithanotherunknowngene/genes.CultivarsSantaandTorka had the gene Pm5 in combination with another unknown gene/genes. Four cultivars: Banti, Ismena, Olimpia andSigma,showedresistancetoallmildewisolatesemployedinalaboratorytest.TheaccessionIPG-SW-14 wastheleastsusceptibletobothpathogens(F.culmorumandpowderymildew)inall5yearsofexperiments. Thislineisthebestcandidateforderivingnewcultivarswithimprovedresistancetofungaldiseases. Keywords:Blumeriagraminisf.sp.tritici,Fusariumculmorum,springwheat. Introduction et al. 2000; Wiœniewska et al. 2000). Fusarium head blight epidemics were observed in north-eastern Poland in 1998, and in central Blumeria graminis f.sp. tritici, Fusarium Poland in 1999, with significant contamination culmorumandF.graminearumbelongtothemost of wheat grain with DON (Tomczak et al. 2002). important pathogens of wheat in Poland Powderymildewisadiseaseaffectingwheateach and neighbouring European countries, causing year. Chemical protection with fungicides is powdery mildew and Fusarium head blight requiredtopreventitandtogethighgrainyields. or scab (FHB) and consequently grain yield and Recently, resistance genes to powdery mildew in quality losses (reduced kernel weight and size), cultivars grown in Poland have been identified and accumulation of several mycotoxins (mostly by Kowalczyk et al. (1998): Pm1, Pm2 deoxynivalenol DON) in the infected kernels, in combination with Pm6, Pm3d, Pm4d, Pm5, chaff and rachis (Abramson et al. 1987; Bai Pm8,andPm9.TheuseofSTSmarkerstoidentify and Shaner 1996; Parry et al. 1995; Wiœniewska fourPmresistancegeneswasdescribedbyStêpieñ et al. 1997; Bottalico 1998; Che³kowski 1998; et al. (2001). Resistance of wheat cultivars to McIntosh 1998; Adamski et al. 1999; Jones the above pathogens is not sufficient, because andMirocha1999;Mesterhazyetal.1999;Bartoš Received:April30,2004.Accepted:November18,2004. Correspondence:H.Wiœniewska,InstituteofPlantGenetics,PolishAcademyofSciences,Strzeszyñska34,60-479Poznañ, Poland;e-mail:[email protected] 36 H.Wiœniewska,K.Kowalczyk sources of resistance genes used by breeders for IPG-SW-22, IPG-SW-23, IPG-SW-26, a long time lead to appearance of new virulences IPG-SW-27, IPG-SW-28, IPG-SW-29, of the pathogen. The search for new sources of IPG-SW-30, IPG-SW-32, IPG-SW-37, resistance to the most important pathogens is IPG-SW-41, IPG-SW-44. Those accessions were currentlyachallenge.Thenumberandidentityof testedpreviouslyandshowedarelativelylowsus- resistance genes in recently released cultivars are ceptibility to FHB during earlier studies unknown. Molecular DNA markers elaborated to (Wisniewska et al. 2000, 2002). The 12 Polish identify Pm resistance genes were reviewed by spring wheat cultivars (Alkora, Banti, Eta, Hera, ChenandChe³kowski(1999). Henika, Igna, Ismena, Jasna, Olimpia, Omega, ItisnowgenerallyagreedthatFHBresistance Santa, and Sigma) were provided by is controlled by a polygenic system. Effects theKobierzyceBreedingCo.,Poland.TheBrazil- of dominance of genes probably influence FHB ian spring cv. Frontana and the Chinese resistance, but additive effects appear to be cv.Sumai3wereusedasresistantcontrols. important, and resistance genes can be Thecultivarsandlineswerecomparedinfield accumulated (Snijders 1990; Bai et al. 1999). experiments in 1998–2001 in an Experimental Recent studies on chromosomal location of FHB Station of the Institute of Plant Genetics, Polish resistance genes/loci in the wheat genome have Academy of Sciences, at Cerekwica (82 m above used RFLP and AFLP methods and recombinant sea level), 30 km northwest of Poznañ, Poland. inbred lines (RILs) as a mapping population. Each year the experiment was carried out in Quantitativetraitloci(QTLs)ofresistancetoFHB acompleterandomizedblockdesignwith3repli- havebeenpreliminarilymappedonthefollowing cations. chromosomes:1B,2AL,3BS,3A,5Aand6B(Bai et al. 1999; Waldron et al. 1999; Anderson et al. Inoculumprocedure 2001; Ruckenbauer et al. 2001; Buertsmayr et al. 2002). To produce spores of the pathogen, wheat grain Sources of the resistance were found in China samplesof50geach(inErlenmeyerflasks)were among more than 30 000 accessions of Triticum adjustedto30%watercontent,leftovernight,next landraces (like Wangshuibai and Sumai 3), in sterilizedfor30minutesat120ºC,0.1cPpressure, SouthAmericangermplasm(cv.Frontana),andin thencooledandinoculatedwithF.culmorumiso- winterwheat–theSwisscv.ArinaandtheCzech late KF 846 (W.G. Sm) Sacc. The isolate is cv. Praag-8 (Snijders 1990; Mesterhazy 1995; a deoxynivalenol producer, originating from Mesterhazy et al. 1999). Growing of wheat wheatheadswithscabsymptoms,fromthecollec- cultivars resistant to the above-mentioned tionoftheInstituteofPlantGenetics,Poznañ,Po- pathogens is the most economic, environ- land. Inoculated grain was incubated under ment-friendly and effective method of disease near-UVilluminationat20ºCforabout4weeksto control(Winzeleretal.2000). obtainabundantsporulationonkernelsurface.On The aim of this paper was to examine field the day of inoculation, conidia were washed off resistance of spring wheat cultivars and lines to with sterile water and adjusted to the concentra- a F. culmorum isolate and powdery mildew after tion1×105spores/mL. naturalinfectionandinalaboratoryhostpathogen Atmid-anthesis(Zadoksscale65)10headsin testwithB.graminisf.sp.triticiisolates. eachreplicationwereinoculated(only1floretper head) with the conidial suspension (1 × 105 in 1mL)ofF.culmorumaccordingtoGilchristetal. Materialandmethods (1997).Asmallpieceofcottonsoakedwith1mL ResponsetoF.culmorumandpowderymildew of the spore suspension was placed between lemma and palea in a floret in the middle part inthefield ofthehead.Afterinoculation,theheadswerecov- Materialforthestudyincluded18Mexicanspring ered with plastic bags for 48 hours. Non-in- wheat accessions and 12 Polish spring cultivars. oculatedplotsofthesamegenotypeswereusedas The accessions were chosen from 42 accessions, controls. Progress of powdery mildew in natural varying in resistance to FHB, from a Mexican infection was scored since flag leaf emergence to wheat nursery (4th SRSN, CIMMYT): the end of maturity, on a scale of 1–9 (9 = all IPG-SW-5, IPG-SW-6, IPG-SW-7, IPG-SW-11, leavesinfectedintheplot). IPG-SW-14, IPG-SW-16, IPG-SW-21, WheatresistancetoFusarium 37 Harvest Resultsanddiscussion HeadsinoculatedwiththeF.culmorumisolateand For this 5-year study, only 18 accessions with control heads were harvested and trashed manu- thelowestsusceptibilitytoFHBandlowestaccu- ally. In both groups of samples, kernels were di- mulation of DON during a previous study vided into two fractions: (1) Fusarium-damaged (Wiœniewska et al. 2000) were selected. Disease kernels (FDK), with visible Fusarium damage: reactions to F. culmorum were measured by per- shrivelled, lightweight, brown to pink coloured; centage of Fusarium-damaged kernels (% FDK). and (2) healthy looking kernels, without any of The mean value for 5 years was smaller in the symptoms noted above. Percentage of CIMMYT accessions (16.7%) than in Polish Fusarium-damaged kernels (% FDK) was calcu- spring cultivars (28.3%). The proportion of ker- lated on the basis of weight of the damaged and nelswithvisiblesymptomsofFHBinthecontrol healthyseeds. cultivarsFrontanaandSumai3was20%and12%, IdentificationofPmgenes respectively (Table 1). In all Polish spring cultivars, % FDK was higher than in the control The B. graminis sp. tritici isolates used for cultivars (Table 2). The highest value (43%) was the identification of the major known resistance foundinthePolishcv.Olimpia. genes were collected in different parts of Europe Three accessions: IPG-SW-14, 16, 30 were and selected from single-spore progenies resistant to infection by F. culmorum. Cultivars (Felsensteinetal.1991).Virulenceoftheisolates Frontana and Sumai 3 are widely recognized as toknownPmgeneswasclassifiedintheInstitute highly resistant to FHB (Gilchrist et al. 1997; ofAgronomyandPlantBreeding,TechnicalUni- Mesterhazy1995;Snijders1990). versity of Munich, Freising, Germany. The tests Powdery mildew occurred in the wheat formildewresistancewereconductedonprimary experimental field every year of this experiment leafsegmentsofseedlingsculturedon6gL–1agar and disease scores varied between 0 and 7. and 35 mgL–1 benzimidazole in plastic boxes. In- The respective disease score of Polish cultivars oculation was prepared in a setting tower. About ranged from 0 to 5 (Table 2). Cultivars Eta, 500700 spores were placed on 1 cm2of leaf frag- Henika, Ismena, Jasna and Olimpia had low ments.Theplasticboxeswithleaffragmentswere diseasescores.CultivarsAlkora,IgnaandOmega placedinagrowthchamberat17ºCunderillumi- exhibitedthehighestsusceptibility. nation of 10 ìE/m2s for 10 days. Three major The host-pathogen tests resulted in identifica- classes of host reaction were distinguished (rela- tion of resistance genes Pm3d, Pm4b, Pm5 and tive to the susceptible control cv. Kanzler): resis- combinationsofPm3d+Pm4b.Onlytwocultivars tant (0–20%), intermediate (20–50% infection) werecharacterizedbyidenticalresistancepatterns and susceptible (> 50% infection). We used asthestandarddifferentiallineswithdocumented 30plantsofeachcultivarinthesetests. resistance genes presented in a previous paper Near-isogenic lines of cv. Chancellor (with (Kowalczyk et al. 1998). Cultivar Alkora had known powdery mildew resistance genes), the gene Pm3d, and Henika had Pm5. The resis- and line TP114/3*Starke (with gene Pm6) were tancegenePm3dwasidentifiedincultivarsJasna kindly provided by RA McIntosh, Camden, Aus- and Eta in combination with another unknown tralia. These lines and cv. Maris Huntsman (with geneorgenes.CultivarsSantaandTorkahadPm5 genes Pm2 and Pm6) were used as controls in in combination with another unknown gene the host-pathogen tests for identification of pow- or genes (Table 3). Four cultivars: Banti, Ismena, dery mildew resistance genes in Polish wheat OlimpiaandSigma,exhibitedresistancetoallmil- cultivars. dew isolates used in the laboratory experiment. Sigma may have derived its resistance from Statisticalanalysis cv. Sappo plus an unknown gene (Kowalczyk et al. 1998). Ismena might have received the resis- Two-way analysis of variance was carried out to tancegenePm3dfromKolibriorJara,Pm4bfrom determine the influence of genotypes, years theGermancultivarHermes(HeunandFischbeck andgenotypeyearsinteractionon%FDKandnat- 1987) and an unknown source (Kowalczyk et al. ural infection by powdery mildew. For compari- 1998).Bantiprobablyhasacombinationofresis- son of genotype, the estimated least significant tance genes, which may involve differences (LSD) were used (Caliñski Pm1+Pm3d+Pm6, possibly derived from andKaczmarek1973). Table1.SusceptibilityofCIMMYTspringwheataccessionstoFusariumculmorumandpowderymildewunder fieldconditions(5-yearexperiments)incomparisonwithcontrolcvs.FrontanaandSumai3 Fusarium-damagedkernels(%) Powderymildewinfectionscore* Wheat accessions 1998 1999 2000 2001 2002 Mean 1998 1999 2000 2001 2002 Mean IPG-SW-5 25 3 35 17 9 18 7 7 7 6 3 6 IPG-SW-6 21 3 37 22 8 14 5 5 2 4 4 4 IPG-SW-7 10 4 33 29 11 17 6 6 3 5 2 4 IPG-SW-11 25 2 12 46 10 17 6 4 3 5 4 4 IPG-SW-14 9 3 11 14 6 9 2 3 3 2 1 2 IPG-SW-16 8 1 39 9 5 12 7 6 5 5 2 5 IPG-SW-21 11 3 28 25 9 15 3 3 3 3 3 3 IPG-SW-22 5 3 25 20 15 14 4 3 3 3 3 3 IPG-SW-23 22 6 31 19 17 19 6 6 4 5 4 5 IPG–SW-26 19 6 31 28 26 22 5 4 3 2 1 3 IPG-SW-27 11 2 39 19 9 16 5 4 3 3 1 3 IPG-SW-28 17 4 22 20 12 15 4 4 4 2 1 3 IPG-SW-29 17 2 28 22 4 15 1 3 0 3 2 2 IPG-SW-30 11 2 18 19 9 12 1 2 4 2 2 2 IPG-SW-32 18 13 26 39 19 23 4 3 2 2 1 2 IPG-SW-37 11 18 39 18 27 23 3 4 0 2 3 2 IPG-SW-41 22 7 19 17 23 18 0 3 0 1 2 1 IPG-SW-44 13 3 23 29 11 16 3 4 5 3 2 3 Meanfor 15.3 4.7 27.6 22.9 12.8 16.7 4.0 4.2 3.0 3.2 2.3 3.3 CIMMYTlines Frontana 28 7 21 17 27 20 3 4 2 2 1 2 Sumai3 12 2 19 23 4 12 7 6 5 2 2 5 LSD – 4.7 16.4 16.5 7.2 6.0 – 1.5 1.0 2.2 1.7 0.8 0.05 *CIMMYTscaleof1–9:1=resistance9=highestsusceptibility(leafseverelyinfected) Table2.SusceptibilityofPolishspringwheatcultivarstoFusariumculmorumandpowderymildewunderfield conditions,incomparisonwiththecontrolcvs.FrontanaandSumai3 Wheat Fusarium-damagedkernels(%) Powderymildewinfectionscore* cultivars 1998 1999 2000 2001 2002 mean 1998 1999 2000 2001 2002 mean Alkora 22 5 32 34 40 27 2 4 1 3 1 2.3 Banti 10 6 38 48 53 31 0 1 3 0 0 0.8 Eta 19 7 20 34 48 26 0 1 0 1 1 0.7 Henika 8 7 20 29 50 23 0 1 0 1 0 0.4 Hera 21 15 37 27 63 33 2 1 0 5 2 2.1 Igna 10 3 19 44 48 25 3 4 1 4 1 2.6 Ismena 18 6 27 40 65 31 0 1 0 1 1 0.6 Jasna 12 5 19 20 70 25 0 1 1 1 0 0.6 Olimpia 36 23 29 60 66 43 0 0 1 2 1 0.9 Omega 24 7 24 29 28 22 2 4 3 2 4 3.0 Santa 22 11 21 28 46 26 0 2 0 2 0 0.9 Sigma 37 17 30 37 67 38 0 2 0 3 0 1.1 Torka – – – 9 32 20,5 – – – 3 0 1.8 Meanfor 19.8 9.3 26.3 33.8 52.0 28.3 0.8 1.9 0.8 2 1.1 1.4 cultivars Frontana 28 7 21 17 27 20 3 4 2 2 1 2 Sumai3 12 2 19 23 4 12 7 3 5 2 2 3 LSD – 9.4 22.7 18.6 27.0 9.8 – 0.7 0.8 1.5 1.0 0.5 o.os *CIMMYTscaleof1–9:1=resistance9=highestsusceptibility(leafseverelyinfected) WheatresistancetoFusarium 39 Table3.Reactionofwheatcultivarsafterinoculationwith11differentialisolatesofBlumeriagraminisf.sp.tritici Blumeriagraminissp.triticiisolates Postulated Cultivar Pedigree Pmgene(s) W2 W5 W6 W9 W10 W12 W13 W14 W15 W16 W17 Alkora Kolibri/Alfa/Jara s s s,i r s r s r r s r Pm3d Banti Timmo/Jara/Kadett/ r r r r r r r r r r r U Wz6154 Eta Kolibri/Alfa//Jara s s r r r r r r r s r Pm3d+U Hera Hadmerslebener s s s r r s I I s s s U 38662-69/Jara Henika CB412/Selpek s,i s s i,s r s s,i r s s s Pm5 Igna Kadet/Jara r r r r r r i r r r r Pm3d+4b+U Ismena Kolibri/Alfa/Hermes/2/Jara r r r r r r r r r r r U Jasna Eta/Kokart s s r r r,i r,i i,s i i,r s r Pm3d+U Olimpia Solitaire/KOC1052/ r r r r r r r,i r r r r U 82//Henika Santa L.mex97-3/ s s s r r s s r s s s Pm5+U Selpek//Kolibri/2/Henika Sigma Kalyansona/Sappo r r r r r r r r r r r U Torka William/RR227-78/ r s r r r s r,i r i,s s s Pm5+U WW19018 r=resistant;i=intermediate;s=susceptible;U=unknowngene/genes the Swedish cv. Timmo, described to carry genes IPG-SW-41andeightPolishcultivarswereresis- Pm1, Pm2, Pm4b and Pm6 (Hovmoller 1989), as tanttopowderymildewincomparisontothecon- wellasPm3dfromcv.JaraorKadett(Kowalczyk trol cv. Frontana. All Polish cultivars and etal.1998). 15CIMMYTlineswereresistanttopowderymil- Analysis of variance for %FDK indicated no dewincomparisontocv.Sumai3(Table1andTa- significant differences between CIMMYT lines ble 2). The accession IPG-SW-14 was found to andnogenotype environmentinteractionforPol- havethelowestsusceptibilitytoF.culmorumand ishcultivars.Incaseofpowderymildewinfection a low susceptibility to powdery mildew in all scores after natural infection in the field, all 5 years of experiments. In our previous work sources of variation were significant (Table 4). (Wiœniewska et al. 2003) we found that line Significant differences between CIMMYT lines IPG-SW-14 was also resistant to leaf rust in field andPolishcultivarswereobservedbothin%FDK experimentsin2000and2001,whentheleafrust and powdery mildew infection scores. Mean in- epidemics occurred in the Poznañ region, in our fection scores of 5 years indicate that line experimental field in particular, and all Polish spring wheat cultivars except cv. Santa were in- fected. This breeding line is a good candidate for Table 4. Results of the analysis of variance for derivingnewlinesandcultivarswithimprovedre- percentage of Fusarium-damaged kernels (% FDK) sistance to three fungal diseases: Fusarium head and powdery mildew infection scores (scale 19) blight,leafrustandpowderymildew. of spring wheat CIMMYT lines and Polish spring cultivars REFERENCES F-statistics Sourceofvariation Fusarium powdery AbramsonD,ClearRM,NowickiTW,1987.Fusarium (%FDK) mildew species and trichothecene mycotoxins in suspect CIMMYT lines samples of 1985 Manitoba wheat. Can J Plant Sci Genotypes(G) 1.37 4.43** 67:611–619. Years(Y) 112.38** 36.50** Anderson JA, Stack RW, Liu S, Waldron BL, Interaction(G×Y) 2.72** 3.24** FjeldAD,CoyneC,etal.2001.DNAmarkersfor Polishcultivars FusariumheadblightresistanceQTLsintwowheat Genotypes(G) 2.44* 2.64* populations.TheorApplGenet102:1164–1168. Years(Y) 85.11** 39.03** Interaction(G×Y) 1.34 9.52** Adamski T, Che³kowski J, Goliñski P, Kaczmarek Z, Kostecki M, Perkowski J, et al. 1999. Yield *P<0.05;**P<0.01 40 H.Wiœniewska,K.Kowalczyk reduction and mycotoxin accumulation in barley McIntoshRA,1998a.Breedingwheatforresistanceto doubled haploids inoculated with Fusarium bioticstress.Euphytica100:19–34. culmorum (W.G.Sm.) Sacc. J Appl Genet 40(2): Mesterhazy A, 1995. Types and components 73–84. of resistance to Fusarium head blight of wheat. BaiG,ShanerG,1996.VariationinFusariumgrami- PlantBreeding114:377–38. nearumandcultivarresistancetowheatscab.Plant MesterhazyA,BartokT,MiropchaCG,KomoroczyR, Dis80:975–979. 1999.NatureofwheatresistancetoFusariumhead Bai G, Kolb FL, Shaner G, Domier LL, 1999. blightandtheroleofdeoxynivalenolforbreeding. Amplifiedfragmentlengthpolymorphismmarkers PlantBreeding118:97–110. linkedtoamajorquantitativetraitcontrollingscab ParryDW,JankinsonP,McLeod,1995.Fusariumear resistanceinwheat.GenetResist89(4):343–348. blight(scab)insmallgraincereals:areview.Plant Bartoš P, Hanzalova A, Bla(cid:1)kova V, 2000. Leaf rust Pathol44:207–238. resistance of winter wheat cultivars registered in Ruckenbauer P, Buertsmayr H, Lemmens M, 2001. the Czech Republic. Acta Phytopathol Entomol Present strategies in resistance breeding against Hung35(1–4):149–151. scab(Fusariumspp.).Euphytica119:121–127. Bottalico A, 1998. Fusarium diseases of cereals: SnijdersCHA,1990.Geneticvariationforresistanceto speciescomplexandrelatedmycotoxinsprofilesin Fusariumheadblightinbreadwheat.Euphytica50: Europe.JPlantPathol80:85–103. 171–179. Buertsmayr H, Lemmens M, Hartl L, Doldi L. 2002. Stêpieñ £, Yu Chen, Che³kowski J, Kowalczyk K, Molecular mapping of QTLs for Fusarium head 2001. Powdery mildew resistance genes in wheat: blight resistance in spring wheat. I. Resistance to verification of STS markers. J Appl Genet 42: fungal spread (Type II resistance). Theor Appl 413–423. Genet104:84–91. Tomczak M, Wiœniewska H, Stêpieñ £, Kostecki M, CaliñskiT,KaczmarekZ,1973.Statisticalmethodsin Che³kowski J, Goliñski P, 2002. Deoxynivalenol, the analysis of multivariate experiments. 3rd nivalenol and moniliformin occurrence in wheat Methodological Colloquium in Agro-biometrics: samples with scab symptoms in Poland 258-320,PAN,Warsaw,Poland(inPolish). (1998-2000).EurJPlantPathol108(7):625–630. ChenYu,Che³kowskiJ,1999.Genesforresistanceto Waldron BL, Moreno-Sevilla B, Anderson JA, wheatpowderymildew.JApplGenet40:317–334. Stack RW, Frohberg RC, 1999. RFLP mapping of Che³kowskiJ,1998.DistributionofFusariumspecies QTLforFusariumheadblightresistanceinwheat. andtheirmycotoxinsincerealgrains.In:SinhaKK, CropSci39:805–811. Bathnagar D, eds. Mycotoxins in Agriculture Winzeler M, Mesterhazy A, Park RF, Bartos P, and Food Safety. Marcel Dekker Inc, New York: Csosz M, 2000. Resistance of European winter 45–64. wheat germplasm to leaf rust. Agronomie 20: Felenstein FG, Limpert E, Fischbeck G, 1991. Wheat 783–792. mildewpopulationintheFRGandneighbouringre- Wiœniewska H, Adamski T, Che³kowski J, Surma M, gions: some aspects of their change. In: J(cid:1)rgensen 1997. Susceptibility of two-and six-rowed barley H, ed. Integrated control of cereal mildews: viru- DH lines to Fusarium head blight. Proc 5th lencepatternsandtheirchange.Ris(cid:1)NationalLab- European Fusarium Seminar, Szeged Hungary, oratory,Roskilde,Denmark:1–7. 25(3/2):833–835. GilchristLS,RajarmvanGinkel,KazimM,FrancoJ, WiœniewskaH,Che³kowskiJ,PerkowskiJ,BuœkoM, 1997. Characterizing Fusarium graminearum 2000. Resistance to Fusarium head blight resistance of CIMMYT bread wheat germplasm. and deoxynivalenol accumulation in spring wheat CerealResComm25:655–657. accessions inoculated with Fusarium culmorum. Heun M, Fischbeck G, 1987. Genes for powdery 6th European Seminar ‘Fusarium Mycotoxins, mildewresistanceincultivarsofspringwheat.Plant Taxonomy and Pathogenicity’. Berlin Dahlem, Breeding99:282–288. MitteilungenausderBiologishenBundesanstaltfûr Hovmoller MS, 1989. Race-specific powdery mildew LandundForstwirtschaft,Heft377:94. resistance in 31 north-west European wheat WiœniewskaH,Che³kowskiJ,PerkowskiJ,BuœkoM, cultivars.PlantBreeding103:228–234. Bocianowski J, 2002. Components of resistance Jones RK, Mirocha CJ, 1999. Quality parameters in againstFusariumculmoruminspringwheat.JAppl smallgrainsfromMinnesotaaffectedbyFusarium Genet43A:345–354. headblight.PlantDis83:506–511. Wiœniewska H, Stêpieñ £, Kowalczyk K, 2003. Kowalczyk K, Hsam SLK, Zeller FJ, 1998. Resistanceofspringwheatcultivarsandlinestoleaf Identificationofpowderymildewresistancegenes rust.JApplGenet44:361–368. incommonwheat(TriticumaestivumL.em.Thell.) XI. Cultivars grown in Poland. J Appl Genet 39: 225–236.

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