Dwarf cashew antibiotic and antixenotic resistance to the whitefly Aleurodicus cocois
| Autor: | ELAINE S.S. GOIANA, NIVIA S. DIAS-PINI, FRANCISCO C. VIDAL-NETO, ANTÔNIO A. GOMES FILHO, CHERRE S. BEZERRA DA SILVA, WENNER V.A. SARAIVA |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 92, Iss suppl 1 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1678-2690 0001-3765 42958504 |
| DOI: | 10.1590/0001-3765202020180663 |
| Popis: | Abstract The aim of the present study was to identify Aleurodicus cocois resistant genotypes among five dwarf cashew clones available in the germplasm bank of Embrapa/Centro Nacional de Pesquisa Agroindústria Tropical. Free-choice and no-choice tests were applied in order to evaluate the relative attractiveness of the clones and the oviposition preferences, egg-to-adult development times and adult emergence rates of the pest. In comparison with other clones, PRO143/7 exhibited the lowest attraction to the whitefly and was least preferred for oviposition in the free-choice test. Conversely, CCP76 attracted the highest number of A. cocois and was preferred for oviposition. In the no-choice test, the rates of emergence of adults from clones BRS274, CCP76 and PRO143/7 varied between 53.0 and 56.8%, values that were significantly lower (p < 0.05) than those of clones BRS226 and EMBRAPA51, which were 72.34 and 75.16%, respectively. Some of the cashew clones tested showed antibiotic (CCP76, PRO143/7 and BRS274) and antixenotic (PRO143/7 and BRS226) resistance to A. cocois. These clones are good candidates for use in breeding programs of cashew. |
| Databáze: | Directory of Open Access Journals |
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