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Breeding For Tomato Resistance To Spider Mite Tetranychus Urticae Koch (Acari: Tetranychidae), Ammar Sami Al-Bayati
Breeding For Tomato Resistance To Spider Mite Tetranychus Urticae Koch (Acari: Tetranychidae), Ammar Sami Al-Bayati
Theses and Dissertations--Plant and Soil Sciences
Cultivated tomato plants are extremely susceptible to the two-spotted spider mite Tetranychus urticae Koch. Selection for pest resistance is usually a crucial step required to achieve successful genetic resistance transfer from wild into cultivated tomato genotypes. S. habrochaites LA2329, a wild relative of tomato, is highly resistant to arthropods. Its resistance has been attributed to the presence of a high density of type IV and type VI trichomes and abundant production of 7-epi-zingiberene, a sesquiterpene hydrocarbon. The interspecific backcross hybrids used in this research were derived from the cross between the wild relative tomato, S. habrochaites LA2329, and the cultivated …