Data/hora: 01/06/2024 15:11:16

Biblioteca(s): | Epagri-Sede.
Data corrente: | 10/11/2021
Data da última atualização: | 10/11/2021
Autoria: | SANTOS, T. L. B.; BALDIN, L. L.; RIBEIRO, L. P.; SOUZA, C. M.; SOARES, M. C.; FANELA, T. L. M.; LOURENÇÃO, L.
Título: | Resistance Sources and Antixenotic Factors in Brazilian Bean Genotypes Against Bemisia tabaci.
Ano de publicação: | 2021
Fonte/Imprenta: | Neotropical Entomology, Dordrecht, v. 50, p. 129-144, 2021.
Idioma: | Inglês

Conteúdo:

Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) Middle East Asia
Minor 1 is one of the most important pests of the common bean, due to
its potential of causing direct and indirect damage. This study aimed to
evaluate 78 bean genotypes to verify the occurrence of resistance of antixenosis
type against B. tabaci. Initially, multiple-choice trials were performed
to evaluate the oviposition preference and nymphs? establishment
at 3 and 15 days after infestation. Subsequently, 21 bean genotypes were
selected, and a no-choice test was conducted. Colorimetric analyses were
performed to establish correlations between leaf color and insect establishment.
In multiple-choice trial, the genotypes BRS Ametista, BRS Estilo,
BRS Esplendor, SCS 204 Predileto, BRS Notável, IPR Eldorado, CHIB 06, IPR
Quero-Quero, Iapar 81, CHIP 338, IPR Garça, Arcelina 4, SCS 202 Guará, IAC
Esperança, H96102-1-1-1-52, CHIP 348, Carioca Comum, CHIP 300, IAC
Carioca Eté, IAC Ybaté, and Tybatã were the least used for oviposition
and nymph establishment, demonstrating antixenosis or antibiosis. In
the no-choice trial, most genotypes were less attractive to whitefly, and
the genotypes CHIB 06, IPR Garça, CHIP 300, and IAC Esperança had less
oviposition. The most attractive genotypes presented high luminosity and
more intense green and yellow colors, indicating positive correlation.
Therefore, the genotypes BRS Ametista, SCS 204 Predileto, BRS Estilo,
IPR Eldorado, SCS-202 Guará, Carioca Comum, Arcelina 4, CHIP 348, and
IAC Esperança showed the highest resistance stability in the no-choice
trial, and they are promising sources of antixenotic factors for use in
breeding programs to obtain whitefly-resistant common bean lines.

Palavras-Chave: | antixenosis; colorimetry; host selection; Phaseolus vulgaris L; trichomes; Whitefly.
Categoria do assunto: | O Insetos e Entomologia
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_50291.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (106423-1) - UPC - AP - DD -  -  -  - DIS