The Effect of mixed infection by Tomato Mosaic Virus (ToMV) and Fusarial Wilt on Tomato

Abstract

Abstract :The results showed that the virus caused mosaic on tomato plants, was Tomato Mosaic Virus (ToMV) , and the fungus caused wilt was Fusarium. oxysporum f.sp Lycopersici (F.o.L.) The infection by (ToMV) was the most severe on tomato plants compared with other infections, which reduced the fresh and dry weights to 89.3 and 91.4% respectively, and the length of canopy and roots to 68.7 and 62.8% respectively and the chlorophyll content to 42% while the mixed infection by (ToMV) and (F.o.L.) was less effect on tomato plant especially when the fungus infected the plant firstly which caused resistance in plant against the virus. The disease incidence with two pathogens was 68.5% when the fungus attack the plants firstly compared with 81.5% when Plant infected with virus firstly tomato.