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TRANSMISSION OF ONION YELLOW DWARF VIRUS
Factors Affecting Transmission
3 other sections not shown
600 mesh Carborundum air pressure aphid transmission basal portions Canastota centrifuged juice check plants became cheesecloth pad Chloroform Centrifugation Filtration clarified juice correspond to number crude juice days after inoculation dilution end point distilled water filtered fleshy leaves Fractions correspond fuged green leaves greenhouse healthy plants Henderson 31 host range hypodermic needle infected after inoculation infected over number infected plants inoculation by means lindane longevity mechanical inoculation mechanical transmission method of inoculation ml of juice NC c NC non-centrifuged juice number inoculated number of plants onion leaves onion plants onion test plants onion yellow dwarf OXDV OYDV infection OYUV plants became infected plants infected plants were inoculated potassium phosphate probe recovered recovery of OYDV rubbing strokes severe abrasion shallot sodium sulfite source of inoculum source plants supernatant symptom expression symptoms developed temperature test plants became test plants inoculated thermal inactivation point transmission of OYDV treatment trials virus Vise-grip vitro