Data/hora: 13/06/2024 09:23:23

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 23/11/2011
Data da última atualização: | 28/09/2017
Autoria: | COSTA, R. V. da; ZAMBOLIM, L.; COTA, L. V.; SILVA, D. D. da; RODRIGUES, J. A. S.; TARDIN, F. D.; CASELA, C. R.
Afiliação: | RODRIGO VERAS DA COSTA, CNPMS; LUCIANO VIANA COTA, CNPMS; DAGMA DIONISIA DA SILVA, CNPMS; JOSE AVELINO SANTOS RODRIGUES, CNPMS; FLAVIO DESSAUNE TARDIN, CNPMS; CARLOS ROBERTO CASELA, Pesquisador aposentado- CNPMS.
Título: | Genetic control of sorghum resistance to leaf anthracnose.
Ano de publicação: | 2011
Fonte/Imprenta: | Plant Pathology, London, v. 60, p. 1162-1168, 2011.
DOI: | 10.1111/j.1365-3059.2011.02469.x
Idioma: | Inglês
Conteúdo: | A study was carried out to investigate the inheritance of resistance to anthracnose, caused by Colletotrichum sublineolum, in sorghum. Crosses between resistant and susceptible parents and backcrosses between F1 plants and the susceptible parents were carried out under field conditions. The F1 generations and the segregant populations were evaluated under artificial inoculation conditions in the greenhouse. In the F1 generation of all crosses with the respective isolates, all of the plants presented a resistance reaction except for the F1 plants resulting from the BR009· SC283 cross. In the F2 generation, the frequencies of resistant and susceptible plants conformed to the hypothesis that one gene with two alleles controls host resistance, except in one cross. Out of the eight backcrosses, six presented segregation that corresponded to the hypothesis formulated. For most crosses, resistance was dominant, and the proportions of resistant and susceptible plants in the segregant populations conformed to the frequencies expected under the hypothesis of gene-for-gene resistance and dominant gene action.
Thesagro: | Antracnose; Doença de planta; Sorghum Bicolor; Sorgo.
Thesaurus Nal: | Colletotrichum sublineolum.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (24021-1) - UPC - AP - DD -  -  -  - DIS