Qos yaj ywm kab mob Y (PVY) yog qhov teeb meem tseem ceeb tshaj plaws uas ntsib kev lag luam qos yaj ywm hauv Tebchaws Meskas thiab yog qhov ua rau cov noob qos yaj ywm ntau ntau. Tus kab mob no cuam tshuam rau cov qos yaj ywm hauv ob txoj hauv kev: nws txo cov qoob loo ntawm cov qos yaj ywm los ntawm 70-80%, thiab tseem cuam tshuam qhov zoo ntawm cov tubers uas tseem tshuav vim muaj kev cuam tshuam necrotic.
PVY spans ib tug complex network ntawm hom kab mob nrog ntau yam tsos mob. Hauv 10 xyoo dhau los, muaj kev hloov pauv tseem ceeb hauv kev nthuav dav ntawm ntau hom. PVY O, ib hom kab mob uas tsis yog recombinant tseem ceeb hauv Tebchaws Meskas txog xyoo 2012, tau zoo li ploj mus, thaum ob hom kab mob sib xyaw ua ke (nrog rau tuber puas tsuaj) tau kis. Cov hom no, PVY N-Wi thiab PVY NTN, tam sim no suav txog ntau dua 90% ntawm tag nrho cov PVY cais pom hauv qos yaj ywm.
Nyob rau hauv lub vev xaib tshaj tawm Lub Yim Hli 26, "Cov Kab Mob Qos Qos Y (PVY) Cov Kab Ntau Lawm Ua Haujlwm hauv Teb Chaws Asmeskas Qos," University of Idaho Department of Plant Virology xibfwb Alexander Karasev tham txog qhov kev hloov pauv no hauv cov kab mob sib kis, kos cov lus xaus los ntawm kev sim ua thaum xyoo 2015 thiab 2016 loj hlob. caij. XNUMX Nws txoj kev tshawb fawb qhia tau hais tias thaum peb ntawm plaub hom qos yaj ywm tawm tsam PVY O, tsis muaj leej twg tuaj yeem tiv PVY N-Wi.
Cov kev hloov pauv ntawm cov kab mob PVY hauv cov qos yaj ywm no muaj qhov cuam tshuam tseem ceeb rau cov qos yaj ywm pov thawj, cov kev pab cuam qos yaj ywm, thiab cov chaw kuaj mob.
Qhov tseem ceeb tshaj yuav tsum tau muab tso rau hauv kev kuaj sim vim tias cov tsos mob pom pom nyuaj dua, Karasev tau hais. Tsis tas li ntawd, cov khoom siv tshuaj ntsuam xyuas kev lag luam yuav tsum tuaj yeem tshawb xyuas cov kab mob tshiab no.
Nyeem kom ntxaws: https://www.agroxxi.ru/
(Qhov chaw: phys.org).