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EUROPEAN-SEED.COMIEUROPEANSEEDI13Anotherchallengeishowtoacilitateandcultivateinnovationsinsuchabigmarket.Andlastbutnotleasttodealwithnewregulationsinseedexchangeswhichcomplicatethebreedingprocesses.KeesKnstConsumersarebecomingmorecriticalanddemandtastyoodohighquality.Theyalsolookormorevariationdiversication.Ourchallengeistoprovidethemwithawiderangeohigh-qualitygood-tastingtomatoes.High-qualitymeansalsobeingreeopesticideresiduessoweneedtobringvarietiesonthemarketwithgoodresistancepackages.ESAsinpracticallyeverybreedingprogramofanycropbreedingfordiseaseresistanceisoneofthemostimportantifnotthemostimportantbreedinggoal.WhichdiseasesaremosttroublesomeandarethereanynewdiseasesthatweshouldbeawareofJPGOcoursediseaseresistanceisoneothemostimportantthingsacingthecrop.Wearealsoseeingnewproblemsromvirusesnematodesungiandbacteria.Bacteriamaybeabigissueinthenearuturebecausethereareonlyaewstrategiesandgeneticresourcesavailabletousatthemoment.MEClassiyingwhichdiseasesaremosttroublesomeisrelatedtotheproductionregionandcultivationmethod.Inhigh-techtomatocultivationintheNetherlandsweareworkingtoimproveresistanceagainstpowderymildewOidiumlycopersici.IwelookatorganiccultivationontheotherhandweseethatleamouldcausedbyCladosporiumulvumsynonymFulviaulvaisanimportantproblem.Severalresistancegeneshavebeenbreachedbyanewstrain.Wedevelopedvarietieswithresistanceagainstthisnewstrain.Inproductionareaswheregrowersuselessheatinggasandinareaswithabigdierencebetweendayandnight-timetemperatureshumidityinsidethegreenhousecanbecometoohigh.IntheseareasweseethatlateblightPhythophthorainestansbecomesabiggerproblem.Thatiswhyweworkonbreedingresistantvarieties.Diseaseresistanceisvitaltosecureyieldsandcancontributetodecreasingtheuseochemicalcropprotectionintomatocultivation.KKIagreethatindierentgeographicareasandcropsystemsprotectedhydroponicssoilopeneldetc.therearedierentpestscausingproblems.Agoodresistancepackagereducespesticideuseandgivessecuritytoagrower.Thediseasesthataremosttroublesomearetheonesthatarediculttocontrolandcausereallybiglossesotenobligingthegrowertouselargeamountsopesticides.Themainonesarethebegomovirusestransmittedbywhitefieslateblightbacterialwiltandbacterialspot.Bacterialwiltandspotareaectingtheopeneldtomatocropsinthesub-tropicalareas.Besidesthesediseasestherearealsosomeinsectsdoingalotodamagetotheshellieandmarketabilityotomatoruits.OverthelastcoupleoyearsthemothTutaabsolutahasspreadromSouthAmericatootherpartsintheworlddoingharmtotomatocrops.Alsoothernewdiseasesorresistancebreakingstrainsoknowndiseasesarekeepingourbreedersbusy.TherearenewracesothemildewFulviaulvaandOidiumneolycopersicianothermildewbecomingmorewidespread.WithrespecttorootdiseasesweseeusariumcrownrootrotbecomingaseriousproblemineldcropsinEasternEuropecentralAsiaandtheMiddleEastvarietieswithresistanceandadaptedtotheseareasareneeded.AnotherrootdiseaseisthecrazyrootgrowthcausedbyAgrobacteriumrhizogenesinhydroponiccrops.Alsonewresistance-breakingnematodestrainsdamagetomatocropsincertainareas.Withregardstovirusesbesidesthealready-mentionedbegomovirusestherearealotoothervirusesandsomeviroidscausingproblemsintomato.Itisclearthathavingtherightresistanceinavarietyandgoodreliableproductionisimportant.Astomatoesaregrownallovertheworldunderdierentconditionsbreedersworkhardtomakevarietiesadaptedtoawiderangeoconditionsandcultivationtypes.Importantworkisbeingdonetomakevarietiesbetteradaptedtoextremetemperatureshighandlowsalinitydroughtandhighhumidity.GermanAnastasioTheclimaticchangewearewitnessingishavinganimpactonthediseasesthataectthetomatocrop.WeareseeingthatsomeoliardiseasessuchasOidiumStemphyliumandFulviaarebecomingmoreprevalent.Howevervirusesarestillthemainlimitingactorgeminiviruswithitsrequentrecombinationandhighlyeectivetransmissionbywhitefiesisalwaysathreatthatcanovercometheresistancegeneswearedealingwithcurrently.Atthesametimethereistheriskoanoutbreakoanewunknowndiseasewhichisalwaystheworstscenario.ESBesidesresistancethereareofcoursenumerousotherbreedingtargets.WhatareyouworkingonMEWearecontinuouslyimprovingtheyieldoourvarieties.Increasingcropyieldsisaprerequisiteoreedingtheworldpopulationandacrucialactortosaeguardtomatogrowerscompetitiveness.Wedonotintroducevarietiesthatdontmeetourqualitystandards.Ineverysegmentourchallengeistocombineagoodyieldwithgoodqualityandtaste.Tosecureayear-roundsupplytomatoessometimeshavetobetransportedoverlongdistances.ForexampleromthesouthoEuropetonorthwestEuropeandromTurkeytoRussia.Inthesecasesagoodshellieminimumthreeweeksisessentialagainwiththechallengetocombinethiswithagoodtaste.JPGWecantorgetyieldearlinessandruitqualitybutconsumersarealsorequestingtomatoesthatarehealthiertastebetterandareinnovativeproductswhicharenotsoneworusbutquitediculttotackleatabreedinglevel.ESWhataretheinnovationsthatyourtomatobreedersarebringingtothemarketMEWearecontinuouslyworkingonabroadassortmentandkeepondevelopingnewproductslikenewsnacktomatoeswithnewshapesandcolours.WehaverecentlyintroducedtwoinnovativetomatoconceptstheSilkyPinkandInternalRedtomatovarieties.PinktomatoesarewellknowninAsiancountriesbutquitenewintherestotheworld.ThereoreRijkZwaanintroducedthelabelSilkyPink.ThedistinctivecolourandjuicyfeshothesesweetruittomatoesastheyarecalledinJapanoergrowersandretailersinterestingopportunitiestoenternewmarkets.InternalRedtomatoeshaveadarkredcolorandadeepredcorewhatgivesthematastyandhealthyappearance.ThistraitwaspickedupbyRijkZwaanbreedersandiscurrentlyavailableinourtomatoassortment.Thedistinctivelookcangiveapositiveimpressiontotheimageothetomato.SilkyPinktomato.RijkZwaanInternalRedtomatoes.RijkZwaan