Which specific species and genera of potyviruses, carlaviruses, and allexiviruses significantly impact the quality and quantity of garlic yields on a large-scale production level?"
Hello Shaista Fatima, you can find dedicated testing on the website of companies that offer virus testing and so, for example, in Agdia:
Potyvirus group , Cherry leaf roll virus, Iris yellow spot virus, Onion yellow dwarf virus , Leek yellow stripe virus, Tobacco mosaic virus, Tobacco rattle virus, Tomato spotted wilt virus
The above listed tests are recommendations based on published findings, common requirements for international trade.
Other pathogen tests available for Allium species: Carlavirus group test (Garlic common latent virus), Potexvirus group test (Asparagus virus 3, Garlic virus A, Garlic virus B, Garlic virus C, Garlic virus D, Garlic virus E),Potyvirus group test (Scallion mosaic virus). Good luck
Shaista Fatima Some wide range -host viruses like Cucumber mosaic virus or others, common in your region, can affect garlic as well. 2-3 different virus combination will be most harmful for the crop yield. The most common virus synergism is observed for combination of Potyvirus species and DNA viruses. See: Encyclopedia of Plant Viruses and Viroids. New Delhi: Springer India, 2019. 52-53.
iris yellow spot virus-elliptical spots on the leaves. The spots also appear on garlic scapes or flower stalks of garlics. As both infected leaves and scapes age, they can collapse at the site of the spots.
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