Resistance to Helicoverpa armigera in tomato genotypes obtained from the crossing of Solanum lycopersicum x Solanum galapagense
DOI:
https://doi.org/10.1590/S1678-3921.pab2016.v51.23462Keywords:
pest integrated management, plant breeding, indirect selection, leaf trichomesAbstract
The objective of this work was to verify the resistance to the Helicoverpa armigera (Lepidoptera: Noctuidae) caterpillar by tomato genotypes obtained from interspecific crossing of Solanum lycopersicum x S. galapagense, and the association of this resistence with the density of type IV glandular trichomes. Genotypes of the F2 population, obtained from the crossing of S. lycopersicum TOM‑684 x S. galapagense LA‑1401, selected for low and high densities of glandular trichomes, respectively, were subjected to two laboratory resistance tests, one for antibiosis and other for antixenosis. Genotypes of the F2 population, with high density of type IV glandular trichomes (BPX‑486‑17, BPX‑486‑62, BPX‑486‑10, BPX‑486‑46 and BPX‑486‑08), showed higher resistance levels, both by antibiosis and antixenosis, than the genotypes with low‑density glandular trichomes (BPX‑486‑313 and BPX‑486‑383) and the witnesses 'Santa Clara' and TOM‑684. Resistance levels were lower than those of the wild parent LA‑1401.Downloads
Published
2016-09-26
How to Cite
da Silva, A. A., Andrade, M. C., Carvalho, R. de C., Neiva, I. P., Santos, D. C., & Maluf, W. R. (2016). Resistance to <i>Helicoverpa armigera</i> in tomato genotypes obtained from the crossing of <i>Solanum lycopersicum<i/> x <i>Solanum galapagense<i/>. Pesquisa Agropecuaria Brasileira, 51(7), 801–808. https://doi.org/10.1590/S1678-3921.pab2016.v51.23462
Issue
Section
ENTOMOLOGY
