Kho Barley Spot Blotch - Tswj Barley Spot Blotch Cov tsos mob hauv lub vaj

2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55

kab mob fungal nyob rau hauv cov qoob loo yog tag nrho cov dhau heev lawm, thiab barley tsis muaj kev zam. Barley spot blotch kab mob tuaj yeem cuam tshuam rau ib feem ntawm cov nroj tsuag txhua lub sijhawm. Seedlings feem ntau kis kab mob tab sis, yog tias lawv dim, tus kab mob yuav tshwm sim nyob rau hauv kev loj hlob tua. Tus kab mob tuaj yeem txo cov qoob loo thiab tua cov nroj tsuag hluas. Muaj ob peb kauj ruam los tiv thaiv thiab kho barley spot blotch.

Barley Spot Blotch Symptoms

Barley spot blotch disease muaj nyob hauv ntau cov nyom qus thiab cog qoob loo. Spot blotch ntawm barley yog tshwm sim los ntawm fungus Bipolaris sorokiniana. Cov fungus paub tias txo cov yields los ntawm ib mus rau peb feem pua. Thaum barley kernels raug tsim, lawv feem ntau muaj cov ntsiab lus dub, ib qho tsis muaj xim ntawm cov lus qhia ntawm cov kernels.

Nyob rau hauv cov noob, saib cov av kab rau cov xim av xim av. Tus kab mob no zuj zus mus tig daj, thiab lawv yuav tuag. Yog tias lawv ciaj sia, cov tua thiab cov hauv paus hniav tsis muaj zog thiab deformed, thiab cov noob taub hau yuav tsis tshwm sim tag nrho.

cov nroj tsuag paub tab tuaj yeem tsim cov kab mob xim av oblong. Nyob qhov twg muaj ntau qhov txhab, nplooj qhuav tawm thiab yuav tuag. Kernels ntawm barley nrog qhov chaw blotch yog shriveled thiab underweight. Qhov tshwm sim ntawm tus kab mob diminishes tawm los thiab hnyavntawm nplej.

Thaum barley spot blotch tsos mob tshwm sim, daim teb twb kis lawm. Cov fungus overwinters nyob rau hauv qus los yog cultivated nyom thiab nplej. Tus kab mob txav mus sai thaum qhov kub ntawm 60 thiab 80 degrees F. (16-27 C.) thiab cov xwm txheej ntub dej thiab cua. Spores yuav taug kev ntawm cua thiab nag los nag.

Cov kab mob barley qhov chaw kab mob tuaj yeem ua rau cov noob yug thiab ua rau cov nroj tsuag blight, crown rot, thiab cag rot. Kev raug mob los ntawm kab tso cai rau txoj hauv kev rau kev taw qhia hauv cov nroj tsuag paub tab. Tsis muaj-txog teb yog qhov txaus ntshai tshaj plaws ntawm barley qhov chaw blotch fungus.

Tshuaj Barley Spot Blotch

Daim ntawv thov siv tshuaj tua kab mob tuaj yeem txo qhov kev puas tsuaj thiab qhov tshwm sim ntawm tus kab mob. Kuj tseem muaj cov txheej txheem kab lis kev cai los tiv thaiv qhov tshwm sim ntawm cov fungus. Barley nrog cov pob khaus yuav tsum tau kho nrog cov kab mob sau npe ntawm cov kab mob thawj zaug. Cov kev tshawb fawb qhia tau hais tias plaub daim ntawv thov ntawm cov tshuaj tua kab mob hauv lub caij yuav pab tswj cov pob khaus thiab txo cov qoob loo.

Saib cov noob kom zoo. Kev tiv thaiv yog ua tau nrog cov ntawv pov thawj kho, cov noob tsis muaj kab mob. Tsis txhob khaws cov noob los ntawm cov teb uas tau pom cov tsos mob ntawm tus kab mob. Tig barley nrog cov nroj tsuag uas tsis yog tswv xws li oats, rye, thiab broadleaf nyom. Ntxuav cov khoom pov tseg cog. 6-rowed barley ntau yam muaj kev tiv thaiv ntau dua li 2-kab cultivars.

Spot blotch of barley kuj mutates, ua rau cov haiv neeg tshiab, uas ua rau tsim kom muaj zog cultivars nyuaj.