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Provedor de dados:  Agronomy
País:  Brazil
Título:  Resistance to Enneothrips flavens Moulton and genetic parameters estimation in interspecific genotypes of peanut
Autores:  Pirotta, Melina Zacarelli
Silva, Fabiana Mota da
Michelotto, Marcos Doniseti
Fávero, Alessandra Pereira
Godoy, Ignácio José de
Unêda-Trevisoli, Sandra Helena
Data:  2017-05-17
Ano:  2017
Palavras-chave:  5.01.03.05-9 Arachis hypogaea L.
Thrips
Resistance to insects
REML/BLUP
Melhoramento Vegetal
Resumo:   Peanut is an oilseed crop of great importance for Brazilian agribusiness. A major factor affecting its production is pest incidence, mainly thrips. This study aimed to evaluate the potential for resistance to Enneothrips flavens in genotypes derived from the cross between IAC 503 and the amphidiploid (A. magna x A. cardenasii)4x and to estimate the genetic and phenotype parameters in these genotypes, allowing for better targeting in the selection. The experiments were conducted in a Federer augmented block design with additional checks in two generations (F3 and F4). Resistance to thrips was evaluated by its natural infestation and the symptoms of attacks by the insect. They were also evaluated using agronomic trait indicators of interspecific segregating with cultivated species. The results indicated that the selected progeny exhibited high resistance to thrips compared to commercial genotypes, and they had the amphidiploid as the insect resistance source. Some progenies selected as resistant also had good production traits, but with the degree of suitability to the A. hypogaea L. genotypes still low, the use of a backcross as an alternative for the introgression of resistance genes and the consequent recovery of adapted genotypes of superior recurring parents is suggested. 
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32776

10.4025/actasciagron.v39i3.32776
Editor:  Universidade Estadual de Maringá
Relação:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32776/pdf
Formato:  application/pdf
Fonte:  Acta Scientiarum. Agronomy; v. 39, n. 3 (2017); 339-348

Acta Scientiarum. Agronomy; v. 39, n. 3 (2017); 339-348

1807-8621

1679-9275
Direitos:  Direitos autorais 2017 Acta Scientiarum. Agronomy
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