Katswiri wa mbewu zamasamba waku Dutch akuyang'ana kwambiri zamitundu yayitali yamawaya a nkhaka zokhwasula-khwasula zolimbana ndi powdery mildew ndi nkhaka zobiriwira mottled mosaic virus.
Chiyambireni kutulutsa Quarto RZ, imodzi mwa mitundu yoyambirira ya nkhaka, mchaka cha 2005, katswiri wa mbewu waku Dutch Rijk Zwaan adayambitsa zatsopano m'gululi, kubereka mitundu yatsopano "yopanda nzeru komanso yobala zipatso, komanso yokoma komanso yowoneka bwino", m'mawu a kampani.
"Kupanga mitundu yosagwirizana kumatenga nthawi koma ndi gawo lofunikira lomwe timagwira ngati obereketsa zomera," adatero Marcel van Koppen, wogwirizanitsa mbewu ku Rijk Zwaan. “Alimi amakumana ndi mavuto obwera chifukwa cha matenda osiyanasiyana monga mildew komanso ma virus omwe atha kukhala ndi vuto lalikulu pakukula kwa mbewu. Mu 2019, tidakulitsa mtundu wa nkhaka zokhwasula-khwasula poyambitsa Quayal RZ ngati mtundu wa Qwerty RZ wosamva PM. Tsopano tafika pamlingo winanso pofunsa oweta athu kuti apange mitundu ya nkhaka zoziziritsa kukhosi zokhala ndi zotsutsana ndi PM ndi CGMMV. Izi zikhala kusintha kwakukulu kwa alimi ndi mabwenzi ena amtengo wapatali. "
Malinga ndi Rijk Zwaan, chofunikira ndikusunga gawolo kuti likhale labwino komanso losangalatsa, popeza m'misika ina anthu opitilira 35 peresenti amadya nkhaka zokhwasula-khwasula.
Imodzi mwa mitundu yatsopano ya Rijk Zwaan ndi Quirk RZ, nkhaka yapadera yokhala ndi mitundu iwiri yokhala ndi kukoma kokoma komanso shelufu yayitali.
Kampaniyo yapanganso zina zowonjezera m'gawo laling'ono la nkhaka, zomwe zatsogolera ku chitukuko cha "kuluma kamodzi", komanso mitundu yowoneka bwino ya khungu loyera yabwino kwa snack cucumber medleys.
"Rijk Zwaan amafufuza mosalekeza za mitundu yatsopano ya nkhaka, kukana kofunikira komanso mawonekedwe aukadaulo," idatero. "Kuchokera ku mibadwomibadwo, kampaniyo imakhalabe ndi zokambirana ndi alimi kuti ayembekezere zovuta zatsopano pakusintha kulima, monga waya wokwera. Ichi ndichifukwa chake mitundu yambiri yamakampaniyi ndi yoyenera pamaambulera komanso mawaya apamwamba. ”