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Cerutti,Paulo Henrique; Grigolo,Sibila; Melo,Rita Carolina de; Fioreze,Ana Carolina da Costa Lara; Guidolin,Altamir Frederico; Coimbra,Jefferson Luís Meirelles. |
ABSTRACT When different gene groups are combined by hybridization, the expression of predominant genes for a trait must be known. This understanding is fundamental to the decisions made by breeders in the stages of cultivation and selection of segregating populations during the breeding program. Thus, the objective of this study was to determine the effects of combining ability and gene action for the root distribution traits of the Andean and Mesoamerican common bean gene groups. Six common bean parents from the Andean and Mesoamerican groups were hybridized in a complete diallel mating scheme, resulting in 30 F1 hybrids. The parents and hybrids were planted in the field in a simple lattice design. The target trait was root distribution, calculated as the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gene action; Andean and mesoamerican gene pool; Diallel analysis.. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100226 |
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Blat,Sally Ferreira; Costa,Cyro Paulino da; Vencovsky,Roland; Sala,Fernando Cesar. |
The use of fungicides to control powdery mildew in sweet pepper has been ineffective and genetic resistance is the best alternative. Resistance sources identified in Capsicum annuum L. are rare and unsatisfactory. The purpose of this work was to study the inheritance of C. annuum reaction to powdery mildew. Three homozygous powdery mildew resistant parents, HV-12, Chilli and #124 and three susceptible lines, 609, 442 and 428 were used to obtain seven F1's and respectively their generations F2: HV-12 x 609, 442 × HV-12, 428 × HV-12, Chilli × 609, #124 × 609, Chilli × HV-12 and #124 × HV-12. The powdery epidemic was natural using inoculum from highly sporulating susceptible pepper host. Powdery mildew host reaction evaluations were carried out during the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sweet pepper; Powdery mildew; Genetic resistance; Gene action; Allelism. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100008 |
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