?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Forgprints.org%2Fid%2Feprint%2F45627%2F&rft.title=Baking+quality+of+wheat+organic+heterogeneous+material+and+variety+mixtures%3A+much+more+than+flour+blends&rft.creator=Beaugendre%2C+Amaury&rft.creator=Godin%2C+Bruno&rft.creator=Mingeot%2C+Dominique&rft.creator=Visser%2C+Marjolein&rft.subject=+Production+systems&rft.subject=+Crop+combinations+and+interactions&rft.subject=+Cereals%2C+pulses+and+oilseeds&rft.subject=+Breeding%2C+genetics+and+propagation&rft.description=Despite+taking+up+the+highest+share+of+utilized+agricultural+area+in+the+EU+(61%25)1%2C+arable+crops+are+struggling+the+most+to+transition+towards+sustainable+practices%3A+while+respectively+9.6+and+12%25+of+permanent+crops+and+permanent+grassland+area+was+organic%2C+the+share+of+organic+arable+land+was+only+5.8%25+in+the+EU-28+in+2018.+Cereals+%E2%80%93+which+are+the+main+arable+crops+in+Europe+%E2%80%93+are+an+eloquent+example%3A+in+2019%2C+only+4%25+of+the+area+cropped+with+cereals+was+organic+in+the+EU.+If+the+Farm+to+Fork+Strategy%E2%80%99s+objective+of+25%25+of+organic+agricultural+land+by+2030+is+to+be+achieved%2C+the+issue+of+organic+transition+in+cereals+should+be+of+particular+attention.+In+the+case+of+bread+wheat%2C+a+known+agronomic+lock-in+is+the+lack+of+cultivars+adapted+to+organic+practices.+Rigid+DHS+and+VCU+criteria+which+were+designed+for+conventional+breeding+has+long+been+one+of+the+reasons+for+the+gap+in+organic+breeding.+However%2C+EU+regulations+have+been+adapted+as+of+this+year%2C+and+will+introduce+two+major+novelties%3A+Organic+Heterogeneous+Material+(OHM)%2C+which+%E2%80%9Cis+characterised+by+its+high+level+of+%5Bintraspecific%5D+phenotypic+and+genetic+diversity%2C+and+its+dynamic+nature+to+evolve+and+adapt+to+certain+growing+conditions%E2%80%9D%2C+and+a+temporary+experiment+for+Organic+Varieties.+Aside+from+the+evolution+capacity+inherent+to+genetic+diversity%2C+a+main+interest+of+OHM+is+the+facilitation+effects+that+can+result+from+crop+intraspecific+functional+diversity.+As+such%2C+OHM+brings+whole+new+challenges+to+breeders+and+researchers%3A+to+uncover+the+full+potential+of+OHM%2C+they+need+to+gain+a+better+understanding+of+the+effects+of+diversity%2C+in+order+to+identify+(un)favorable+trait+associations.+Besides%2C+variety+mixtures+are+also+reported+to+be+gaining+attention+among+farmers+in+France%2C+reaching+17%25+of+wheat+stands+in+2021%2C+for+which+similar+knowledge+is+required+to+guide+efficient+mixtures%2C+thereby+stressing+the+importance+of+these+research+questions.+Besides+agronomic+considerations%2C+this+may+also+affect+baking+quality+characteristics+of+OHM+and+mixtures%2C+which+warrants+specific+attention.+Indeed%2C+the+baking+quality+of+a+mixture+cannot+simply+be+expected+to+correspond+to+that+of+a+flour+blend+of+the+same+constituting+varieties%3A+facilitation+and%2For+competition+between+genotypes+will+be+expected+to+affect+the+end-result.+To+address+these+questions%2C+we+have+conducted+agronomic+trials+in+Gembloux%2C+Belgium%2C+evaluating+mixtures+of+2%2C+4+and+8+wheat+varieties%2C+as+well+as+their+constituting+varieties+grown+in+pure+stands.+Several+agronomic+observations+where+performed+%E2%80%93+including+lodging+resistance+as+well+as+relative+yield+and+yield+components+of+the+different+varieties+within+the+mixtures+%E2%80%93%2C+along+with+baking+quality+indices+such+as+protein+content%2C+test+weight%2C+Hagberg+falling+number+and+Z%C3%A9l%C3%A9ny+sedimentation+test.+In+this+presentation%2C+we+present+preliminary+results+of+these+trials.+To+evaluate+mixture+performance%2C+we+compare+baking+quality+performances+of+the+mixtures+to+their+estimation+for+flour+blends+of+the+same+varieties.+We+then+interpret+these+results+in+the+light+of+our+agronomic+observations%2C+in+order+to+suggest+hypotheses+as+to+the+possible+mechanism+underlying+the+observed+mixture+effects.&rft.publisher=20th+ICC+Conference+2022&rft.date=2022-07-05&rft.type=Teaching+resource&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=%2Fid%2Feprint%2F45627%2F1%2FS4_6_Beaugendre%2520Amaury.pdf&rft.identifier=+++Beaugendre%2C+Amaury%3B+Godin%2C+Bruno%3B+Mingeot%2C+Dominique+and+Visser%2C+Marjolein++++(2022)+Baking+quality+of+wheat+organic+heterogeneous+material+and+variety+mixtures%3A+much+more+than+flour+blends.+++20th+ICC+Conference+2022%2C+Vienna%2C+Austria.++++