期刊
HORTICULTURA BRASILEIRA
卷 34, 期 3, 页码 387-391出版社
ASSOC BRASILEIRA HORTICULTURA
DOI: 10.1590/S0102-05362016003013
关键词
Solanum lycopersicum; Solanum habrochaites; allelochemicals; Tetranychus urticae; Bemisia tabaci
类别
资金
- Fundacao Araucaria de Apoio ao Desenvolvimento Cientifico e Tecnologico do Parana (Foundation for Support on Scientific and Technological Development of Parana State)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) (National Council for Scientific and Technological Development)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) (Coordination for Improvement of Higher Education Personnel)
Tomato cultivars resistant to arthropod pests are an important tool to reduce the use of pesticides. Resistance sources can be found in wild Solanum species such as S. habrochaites, which shows high levels of zingiberene (ZGB). This study aimed to evaluate the resistance of a tomato F-2 progeny to spider mite and whitefly by evaluating the ZGB content, in laboratory, in plants from the F-2 population of the interspecific crossing Solanum lycopersicum cultivar Redencao x Solanum habrochaites var. hirsutum (PI-127826), F-1 plants, susceptible plants (cultivar Redencao) and plants of the wild species (PI-127826). From the F-2 population, six plants with high content and three with low content of ZGB were selected. For evaluating the impact of ZGB on the spider mite behavior, the distance walked by spider mites from a central point was measured on the selected plants and their parents. For whitefly, the number of eggs and nymphs were quantified. Spider mites travelled shorter distances in plants with high ZGB content. Also, the number of whitefly eggs and nymphs was lower in these plants. Higher ZBG contents affected negatively both the spider mite and the whitefly behavior.
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