| Summary: | A genetic improvement of tomato for Senegal and other tropical countries. Two new tomato varieties, Romitel and Rotella, of the Rossol type, have been developed in a combined I.S.R.A./I.N.R.A. breeding programme. They are the result of a complex cross, disease resistance screenings under artificial conditions and several years of selection for agronomic performances. In comparison with cv. Rossol, the two cultivars show reduced vegetative development and larger and fleshier fruits. In addition to the resistance of Rossol to Fusarium, Verticillium and Meloidogyne sp., they are also resistant to Fusarium oxysporum f. sp. lycopersici pathotype 2 and to Stemphylium. This is the first time that resistance to all those diseases have been cumulated in a fixed variety for canning and therefore the two cultivars ought to be of special interest to the areas where the above mentioned fungi and nematodes are a limiting factor for tomato cultivation.
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