Asian Vegetable Research and Development Center, Shanhua, Tainan, Taiwan, p 201–203. In: Czosnek (ed) Tomato yellow leaf curl virus disease. The resistant lines identified in the present evaluation can be utilized to develop cultivars for potential durable resistance to multiple diseases.Ībhary M, Patil BL, Fauquet CM (2007) Molecular biodiversity, taxonomy, and nomenclature of tomato yellow leaf curl-like viruses. There was significant correlation between the phenotypic and genotypic based screening. PDRT-104, PDRT-118, PDRT-122, PDRT-124 and PDRT-125 were found to provide multiple disease resistant. The lines which showed resistance and moderately resistance responses under field and artificial conditions were exposed for MAS of major resistant genes ( Ty-1, Ty-2, Ty-3, Ph-2, Ph-3 and Mi-1.2). Punjab Chuhhara (check) was used as susceptible for all three diseases, while PVB-4, LBR-10 and NR-14 were the resistant checks for ToLCD, LB and RKN, respectively. In the present study, BC 2F 6 population comprising 132 elite tomato lines were evaluated using different screening techniques including marker assisted selection (MAS) during 2019–20–2021. Though, work on development of resistant cultivars against multiple diseases are very confined due to non-availability of the resistant sources. Reportedly, the most efficient way to manage these multiple diseases is to adopt resistant cultivars.
Several tactics are being considered for the management of these diseases. The leaf curl disease (ToLCD), late blight (LB) and root knot nematode (RKN) are the major obstacles for rainy season tomato production all over the world.
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