Abstract
Fitopatogen viruslar qishloq xo‘jaligi ekinlarining hosildorligi va sifatini pasayishiga olib keluvchi muhim biologik omillardan hisoblanadi. Ushbu tadqiqot pomidor va kartoshka ekinlarida keng tarqalgan Potato virus Y (PVY) va Tobacco mosaic virus (TMV) tomonidan keltirib chiqariladigan morfologik alomatlarni qiyosiy tahlil qilishga bag‘ishlangan. Tadqiqot davomida vizual simptomlar baholanib, ularning Kasallik Indeksi (KI) aniqlangan hamda natijalar ELISA va RT-PCR usullari yordamida tasdiqlangan. Olingan ma’lumotlar PVY ning tizimli va og‘ir simptomlar, TMV ning esa asosan lokal nekrotik alomatlar bilan xarakterlanishini ko‘rsatdi. Natijalarga ko’ra, dala sharoitida tezkor diagnostika uchun vizual mezonlarning muhimligini tasdiqlaydi.
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