Studies on genetic resistance to bacterial wilt and root-knot nematode in tomato. [Conference paper]
1993
Nirmaladevi, S. | Tikoo, S.K. (Indian Inst. of Horticultural Research, Bangalore)
Studies were made of 6 lines resistant to bacterial wilt and 12 resistant to the nematode, and their crosses. F1 plants of parents with dominant sources of resistance were resistant to both diseases in the field. The interaction of pathogens has modified the genetic ratios of the crosses. A significant correlation between ooze and gall indices indicated that the nematodes predisposed the plants to bacterial wilt. Lines selected in one geographical area showed differing reactions to isolates of P. solanacearum from other regions.
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