Brazil is a world leader in coffee production, however, the quality of the grain differs between the different production systems, which influences the price paid for the product in the national and international market.
Aims: Therefore, the objective of this study was to assess the influence of Arabica coffee afforestation on the physical and sensorial quality of the bean.
Methodology: The study was carried out in the Caparaó region, which involves part of the Espírito Santo state region and another part of the Minas Gerais state, Brazil. For the experiment, nine properties with of coffee. Catuaí vermelho IAC-44 was cultivated in two different situations: a plot of land on the full sole and another of wooded land. In each property, two samples were collected, one per area, representing the coffee in full sun and the other the wooded coffee, and in one of the properties samples were collected in two different areas of wooded coffee. Thus, in total, nine samples of crops in full sun and 10 of forest crops with different species were used, such as cedar, eucalyptus, palm heart, polyculture (characterized by shading with species of fruit and wood) and bananas. The samples consisted of seven liters of cherry coffee, selectively harvested, in the middle third of 20 randomly chosen plants.
Results: The results showed that the quality of the coffee, physical and sensorial, is influenced by the cultivation system (wooded and in full sun), the degree of influence depends on the type of companion plant.
Conclusion: Systems in forest crops with cedar and eucalyptus showed the least number of defects in raw beans and the highest proportion of flat beans (% CG). Treatment of wooded coffee with polyculture showed a higher percentage of coarse mocha (% MG). The cultivation of forested coffee with polyculture has an even better sensory quality, compared to the other treatments studied.
The aim of this study was to estimate and quantify the degree of association between phytotechnical variables for simultaneous selection of maize genotypes suitable to produce baby corn. Seven genotypes were arranged in field in randomized complete block design with four replicates. Genetic parameters, simple, path and canonical correlations of phytotechnical variables were estimated. The variables production of marketable spikes, length of marketable spikes, final plant stand and plant height showed over 80% heritability and variation index higher than the unity, indicating that superior genotypes can be obtained and selection gains. Significant phenotypic and genotypic correlations were observed for production of marketable spikes, positive and of high magnitude with crude protein, dry mass and final plant stand. However, the direct effect between dry mass and production of marketable spikes was pronounced negative (-0.7085), whereas the phenotypic correlation was positive and showed medium magnitude (0.5343), which should be considered the indirect effect of final plant stand (0.7367), to take advantage of the gains of these two traits. The final plant stand is determinant to increase the production of dry matter and marketable spikes, both direct and indirectly. Given the data, we could identify promising variables for plant breeding which can be indicative to select maize genotypes for baby corn production.
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