Selection of conilon coffee clones tolerant to pests and diseases in Minas Gerais
Data
2019
Título da Revista
ISSN da Revista
Título de Volume
Editor
Crop Breeding and Applied Biotechnology
Resumo
In the northern Minas region, the dry-warm climate predisposes coffee plants to the occurrence of leaf miners, mites, cercosporiosis, and leaf scald. Aiming for the development of a cultivar adapted to these conditions, Coffea canephora Pierre ex A. Froehner clones were selected through genetic parameters under an irrigated system, without agrochemicals. Eighteen agronomic traits were evaluated. The survival rate, number of nodes per plagiotropic branch, leaf miner infestation and cercosporiosis incidence were chosen as characteristics for selection of ‘Vitória Incaper 8142’, once they have shown superiority of the genetic parameters. The survival rate variable was used to rank the EMCAPA 8141 Robustão Capixaba clones. Clones V2, V4, V6, V13, RC7, and RC9 were selected as more tolerant to pests and diseases and can provide genetic improvements in conilon breeding program for region. The genetic dissimilarity identified between clones allowed suitable clone combinations to be proposed for use in future crosses.
Descrição
Palavras-chave
Coffea canephora, Vitória Incaper 8142, EMCAPA 8141 Robustão Capixaba, Multivariate, Mixed models
Citação
SILVA, V. A. et al. Selection of conilon coffee clones tolerant to pests and diseases in Minas Gerais. Crop Breeding and Applied Biotechnology, Viçosa, v. 19, n. 3, p. 269-276, jul./set. 2019.