Gulu la asayansi ochokera ku Federal Research Center for Cultivated Plants (Germany) akufunsira ntchito ionizing cheza kulimbana nematodes. Nkhani yomwe idasindikizidwa mu Agronomy 2022 pa www.mdpi.com ikufotokoza njira yatsopanoyi.
"Potato cyst nematodes Pale Globodera и G. Rostochiensis ndi tizirombo tambiri tomwe timayambitsa kuonongeka kwakukulu kwa mbewu.
Zizindikiro za matenda, monga kufota ndi chikasu kwa masamba, sizikhala zachindunji ndipo zimawonekera pakapita kukula kwa mbewu. Anthu atsopano Globodera spp.. ndi ma virulence apamwamba, kugonjetsa mitundu yonse yodziwika yotsutsa mitundu ya mbatata, imatha kuchitika nthawi iliyonse.
Kupewa kufalikira kwa mitundu iwiri ya nematode ndikofunikira kwambiri. Zidutswa za dothi zomwe zimamatira ku tubers zikadali magwero a nematode cysts.
Njira zophera tizilombo toyambitsa matenda monga γ- ndi β-irradiation zimagwiritsidwa ntchito pochotsa zinthu zonyamula katundu ndi mankhwala otayika kuchokera ku tizilombo toyambitsa matenda ndi tizilombo toyambitsa matenda.
M'makampani azakudya, kuyatsa kumatalikitsa moyo wa alumali kapena kumalepheretsa kumera kwa timbewu ta mafangasi. Kuchuluka kwa mphamvu komwe kumatengedwa ndi chinthu kumawonetsedwa mumagulu a Grey mlingo (Gy), pomwe 1 Gy imatanthauzidwa ngati mphamvu ya 1 J yomwe imasamutsidwa ku kulemera kwa 1 kg m'munda wa ionizing radiation ndi mphamvu yosalekeza.
Zomwe zimagwiritsidwa ntchito pawokha sizikhala zotulutsa ma radio, chifukwa kuwalako kulibe ma atomu kapena tinthu tating'onoting'ono ta radioactive, ndipo zinthu zomwe zimawotchedwa sizimakumana ndi gwero la radiation.
Mlingo wakupha umasiyanasiyana zamoyo zosiyanasiyana; bowa ndi invertebrates zimakhudzidwa kwambiri ndi γ-irradiation, pomwe mabakiteriya amawoneka kuti samva milingo mpaka 25 kGy.
Maphunziro angapo adawunikapo kale zotsatira za kuyatsa kwa gamma pa nematodes. Njirayi yasonyezedwa kuti imagwira ntchito bwino pa nematodes yokhala ndi moyo mwaufulu mwa kusokoneza umuna kapena kuonjezera chiwerengero cha amuna ang'onoang'ono akuluakulu, koma kukhudzidwa kwa kuwala kwa gamma kunali kosiyana pakati pa mitundu yosiyanasiyana ya nematode, ndi G. rostochiensis anali okhudzidwa kwambiri kuposa Heterodera schachtii.
Mu kafukufuku wopangidwa ndi asayansi aku Germany, adayang'ana ngati kuthekera ndi mapangidwe a nematode cysts adaponderezedwa ndi γ- ndi β-irradiation.
Pakuyesa koyamba, ma nematode cysts adathandizidwa ndi γ- kapena β-irradiation popanda matrix a dothi kuti adziwe magawo a mlingo wocheperako kuyambira 0 mpaka 12 kGy.
Pambuyo pake, zitsanzo ziwiri zoyimira nthaka zomwe zimakhala ndi ma cysts zidatenthedwa. Kuyatsa kwa γ ndi β pa mlingo wa 0, 1, 4, 8 ndi 12 kGy kunachitika pansi pa zikhalidwe zolamulidwa ku Synergy Health Radeberg GmbH (Radeberg, Germany) ndi antchito ophunzitsidwa mwapadera.
Mphamvu ya kuwala pakukula komanso mapangidwe atsopano a chotupa adawunikidwa pogwiritsa ntchito mayeso a hatch ndi kuyesa kwachilengedwe ndi mbewu za mbatata zomwe zingatengeke, motsatana. Mayesero ofananawo adachitika pa mbande za chimanga, chifukwa mbatata ku Germany nthawi zambiri imakula mosinthasintha ndi mbewu iyi.
Tinapeza kuti 4 kGy inali mlingo wocheperako wa gamma kapena beta radiation poyesera kuti ayambitsenso G. pansi ndi G. Rostochiensis. Zokolola zochepa za nematode zazing'ono zidapezeka mu cysts G. rostochiensiskuwonetseredwa mwachindunji ku β-irradiation pa mlingo wa 4 kGy, zomwe zimasonyeza zochitika zamtundu wamtundu.