Banca de DEFESA: JOHNNESCLEY ANES DE MORAIS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOHNNESCLEY ANES DE MORAIS
DATA : 24/07/2019
HORA: 09:00
LOCAL: Auditório da Embrapa - Porto Velho RO
TÍTULO:

INTERACTION GENOTYPE  X ENVIRONMENTS OF THE BEVERAGE QUALITY OF Coffea canephora CLONES CULTIVATED IN THE WESTERN AMAZON

PALAVRAS-CHAVES:

Intervarietal hybrids; Robustas Amazônicos; Beverage quality.

PÁGINAS: 42
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Fitotecnia
ESPECIALIDADE: Melhoramento Vegetal
RESUMO:

n coffee, the expression of beverage quality is influenced by the effects of genotypes and environments. The differential response of plants to environmental variations makes evaluations in different environments essential for the development of new varieties. The objective of this work is to quantify the genotype x environment interaction of the beverage quality of C. canephora superior clones grown in the Western Amazon. For this purpose, the beverage quality of 20 clones with hybrid characteristics between the Conilon and Robusta botanical varieties was evaluated in experiments conducted in six environments of the states of Rondônia and Acre. The classification of the beverage was performed according to the Robusta Fine Tasting Protocol, which quantifies the quality from a note ranging from 0 to 100, highlighting the nuances of the clones. The performance of the clones in different environments was analyzed considering analysis of simple and joint variance, estimates of genetic parameters and dispersion in the plane of the centroid method. The F-test of the individual analyzes of variance indicates a significant difference among the clones in the evaluated environments. Estimates of the experimental coefficient of variation and individual heritability indicated good experimental conduction in the environments and predominance of the genotype effect in the expression of this characteristic. The interaction genotypes x environments was significant at 1% probability indicating the differential behavior of clones in different environments. The environmental index indicated that the environments of Alta Floresta do Oeste and Ouro Preto do Oeste were favorable for the quality of the drink. The environments Ariquemes, Porto Velho, Rio Branco irrigated and Rio Branco dryland presented negative environmental effect on the note of quality of the drink. In general, there is a small difference in the mean of the scores between the best and the worst environment. The dispersion in the centroid method shows that six clones approached the ideal plant of maximum quality in all environments. Clones BRS2314, 11 and 17 had the lowest values of i. The BRS2314 clone presented fine-type beverage quality with an overall average of 83.8 in all environments. The differentiated expression of the quality of the beverage in the evaluated environments subsidizes the development of new clones for the production of specialty coffees.

MEMBROS DA BANCA:
Presidente - 045.879.256-08 - RODRIGO BARROS ROCHA - EMBRAPA
Interno - 079.807.827-80 - JOSE ROBERTO VIEIRA JUNIOR - UFV
Interno - 089.333.417-06 - MARCELO CURITIBA ESPINDULA - UFV
Externo à Instituição - ENRIQUE ANASTACIO ALVES - EMBRAPA
Externo à Instituição - ALEXSANDRO LARA TEIXEIRA - EMBRAPA