Selection of Conilon coffee clones for the Zona da Mata region of Minas Gerais, Brazil

Autor: Waldênia de Melo Moura, Adriene Woods Pedrosa, Rebeca Lourenço de Oliveira, Paulo Roberto Cecon, Romário Gava Ferrão, Maria Amélia Gava Ferrão, Abraão Carlos Verdin Filho
Přispěvatelé: WALDÊNIA DE MELO MOURA, EMPRESA DE PESQUISA AGROPECUÁRIA DE MINAS GERAIS, ADRIENE WOODS PEDROSA, UNIVERSIDADE FEDERAL DE VIÇOSA, REBECA LOURENÇO DE OLIVEIRA, EMPRESA DE PESQUISA AGROPECUÁRIA DO RIO DE JANEIRO, PAULO ROBERTO CECON, UNIVERSIDADE FEDERAL DE VIÇOSA, ROMÁRIO GAVA FERRÃO, FACULDADES DE ENSINO, PESQUISA E EXTENSÃO DE VITÓRIA/MULTIVIX, MARIA AMELIA GAVA FERRAO, CNPCa, ABRAÃO CARLOS VERDIN FILHO, INSTITUTO CAPIXABA DE PESQUISA, ASSISTÊNCIA TÉCNICA E EXTENSÃO RURAL.
Rok vydání: 2022
Předmět:
Zdroj: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
ISSN: 1984-3909
Popis: Recently, the cultivation of Coffea canephora species has expanded as a consequence of climate change effects and emerging markets that use this coffee as raw material. To meet such demands of production, it is necessary to also improve yield in cultivated areas. Hence, this study aimed to evaluate Conilon coffee clones to identify the most promising fitting material for the Zona da Mata region of Minas Gerais, as well as to analyze the effect of the genotype x biennium interaction and estimate correlation coefficients among evaluated characteristics. Vegetative vigor, yield, main pests and diseases were evaluated in 36 clones from Incaper, ES. The statistical analyses considered the averages of each biennium: Biennium 1 (B1) - 2005/2006; Biennium 2 (B2) - 2007/2008; Biennium 3 (B3) - 2009/2010, and also the average of three biennia (A3B). Univariate and joint statistical analysis were performed, as well as estimates of phenotypic, genotypic and environmental correlation coefficients among assessed characteristics. A wide variability among clones was observed for most of the evaluated characteristics for both each biennium and the average of three biennia. The severities of most diseases have reduced over the years of cultivation. The genotypic correlation coefficients have overcome phenotypic and environmental ones. In general, pests and diseases severities showed significant and negative correlations with vegetative vigor and yield. On the other hand, the last two characteristics were positively correlated. It was also evidenced a certain diversity among clones for most of the evaluated traits. Clone x biennium interaction was significant only for yield and leaf rust severity. There are negative correlations among the characteristics associated with yield and pests and diseases occurrences, which make it possible the use of yield variable as a selection parameter. Clones 24, 23, 28, 26, 21, 29 and 06 MG/ES present a higher potential for cultivation in the Zona da Mata of Minas Gerais. Made available in DSpace on 2022-09-21T21:07:10Z (GMT). No. of bitstreams: 1 Coffee-Science-Wal-MG.pdf: 722583 bytes, checksum: b2accb9f39e34fdc78f415ba5dd7ffed (MD5) Previous issue date: 2022
Databáze: OpenAIRE
Externí odkaz: