183 research outputs found
Evaluation efficiency of severity of angular leaf spot in common bean based on diseased and healthy leaf area.
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
Sementes de sorgo sacarino ao longo da maturação.
Edição dos Anais do XIX Congresso Brasileiro de Sementes, Foz do Iguaçu, 2015
Análise de imagens na caracterização de genótipos de sorgo.
O objetivo deste trabalho foi avaliar a divergência genética de 25 genótipos de sorgo sacarino de acordo com o desenvolvimento de plântulas e germinação das sementes, utilizando técnicas descritas nas Regras de Análise de Sementes e correlacionando com análise de imagens das plântulas pelo Software ImageJ.Evento online
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