| [susceptibility of six arabic coffee cultivars to fruit flies (diptera: tephritoidea) under shaded and unshaded organic management in valença, state of rio de janeiro, brazil]. | the infestation indices by fruit flies were determined for six cultivars of coffea arabica l. in shaded and unshaded systems under organic management. the experiment was set in a completely randomized design with a split-split-plot arrangement and four replicates. a 250g-sample of maturing fruits per plot was harvested in may 2005. the cultivars icatu amarelo and catucaí amarelo were the least susceptible to attack by tephritids in both systems. as for lonchaeids, oeiras, catucaí amarelo and cat ... | 2007 | 17607461 |
| adaptability and genotypic stability of coffea arabica genotypes based on reml/blup analysis in rio de janeiro state, brazil. | biannuality in coffee culture causes temporal variability in plant productivity. consequently, it is essential to evaluate genotypes during various crop years to ensure selection of productive and stable genotypes. we evaluated the effectiveness of simultaneous selection of coffee genotypes along harvests, based on productivity, stability, and adaptability, via mixed models, for indication of varieties suitable for rio de janeiro state. we evaluated 25 genotypes during 4 crop seasons (2009-2012) ... | 2013 | 23979879 |
| agronomic performance of arabica coffee genotypes in northwest rio de janeiro state. | considering the productive potential of arabica coffee in the rio de janeiro state and the shortage of breeding programs for this species in the state, this study aimed to evaluate the vegetative and productive characteristics of 25 arabica coffee genotypes to indicate 1 or more varieties for the northwest rio de janeiro region. the experiment was in varre e sai, rj, brazil, and plants were planted in 2007 with a spacing of 2.5 x 0.8 m. five plots were used, consisting of 8 plants per plot to me ... | 2014 | 25117324 |