Paper Details

PJB-2018-535

SCREENING FUSARIUM WILT RSISTANT TOMATO HYBRIDS FOR RESISTANCE TO LATE BLIGHT (PHYTOPHTHORA INFESTANS).

Agbolade,James Oludare
Abstract

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Late Blight (LB), caused by oomycete Phytophthora infestans, is a highly disastrous disease of tomato all over the world. The disease is responsible for an appreciable reduction of tomato yield in Nigeria. Resistant hybrid tomato accessions to LB were evaluated in the screen house experiment. Nine accessions of tomato (Solanum lycopersicum L.) were sown under screen house conditions to assess each plant for height, number of leaves, flowers and fruits; also disease incidence and disease severity in a bid to determine their resistance to late blight disease caused by Phytophthora infestans. Data collected were subjected to analysis of variance (ANOVA) and means separation using Duncan Multiple Range Test (DMRT). Lower percentage of infected leaves and fruits were recorded by some varieties namely FUN/TC/AV/12/0135(33.33%), FUN/GT/12/0161(61.11%), FUN/TC/AV/12/0122(66.67%) and FUN/TC/AV/12/0111(77.78%); indicating their better resistance to late blight infection under the screen house condition, while others are categorized under very high susceptibility. These resistant genotypes could therefore be selected as resistant varieties to late blight infection and as well be considered in hybridization programme as a source of resistant genes to late blight infection in developing varieties.

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