This study compared severity of angular leaf spot in common bean lines, based on the healthy and diseased leaf area, and the graded scale. We used 12 common bean lines in the dry and rainy seasons. Two contiguous experiments were conducted in each season, with and without chemical control of the pathogen. We evaluated the percentage of the healthy and diseased leaf area; severity based on a graded scale and the area under the disease progress curve; and yield. The diseased or healthy leaf area is efficient to evaluate the severity of angular leaf spot with a sample of 20 to 30 leaflets per plot. For all traits, the results of central and border areas did not differ, indicating that the evaluation of border rows is unnecessary and, finally, the severity assessment of the upper plant half can discriminate the lines more efficiently.
Analisou-se as propriedades físico-químicas e a aceitação sensorial de amostras de aguardente de cana envelhecidas em tonel de carvalho nos tempos 0, 12, 24, 36 e 48 meses e também de duas amostras comerciais, sendo uma envelhecida e outra não. Determinou-se acidez fixa e volátil, pH, graduação alcoólica, teor de cobre e intensidade de cor. Realizou-se também estudo de aceitação das amostras em relação ao aroma, sabor, impressão global e cor. Observou-se aumento significativo nos resultados de acidez total, fixa e volátil, bem como de intensidade da cor, com o decorrer do tempo, além de diminuição considerável nos teores de cobre e na graduação alcoólica. A aceitação aumentou significativamente (p≤0,05) para todos os atributos avaliados, confirmando que a técnica de envelhecimento de aguardente proporciona a obtenção de produtos com qualidade superior.
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