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| Fonseca, Rafaela Souza Alves; Neves, Paula Rodrigues; Lemes, Natanael Marcos; Decloquement, Jennifer; Lima, Milton Luiz da Paz. |
| The objective of this work was to identify the time of the thermal shock that promotes the greater release of zoospores/sporangia. The experiments were carried out with five treatments, varying the thermal variation time (20', 30', 40', 50' and 60') of sporangia suspension of 7.105 sporangia mL-1 under 5 °C temperature. The incidence of sporangia germinated by 20 times whose It was evaluated100 units at random, using an optical microscope at 40 times magnification. The F and Tukey test were used to compare the means. The sexual phase (presence of oospores) was identified in the isolate derived from purslane. In purslane leaves (infected by Albugo portulacae) the time of 20-30' promoted a greater number of zoospores released, whereas for the isolate from... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2018 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/1634 |
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| Caetano, Alicionon de Oliveira; Diniz, Rayane Louise Candida; Lemes, Natanael Marcos; Rietjens, Anderson Rodrigues; Lima, Milton Luiz da Paz. |
| Many diseases are affecting tomato fruits in the field and greenhouse. The objective of this work was to identify, to verify the symptomatology, pathogenicity and hosts of C. cassiicola causal agent of tomato fruit rot. Symptomatic tomato fruit were isolated in medium agar-water (AW). After 48 hours, the mycelia were replicated on potato-dextrose-agar (PDA) medium. The inoculation was used mycelia discs, for treatments with and without injury, in fruits of tomato, okra, bell pepper, eggplant, zucchini, and noni were present. Both treatments, confirming the aggressiveness and pathogenicity on the original host. Among the other hosts, pathogenicity was confirmed only in okra, bell pepper, and tomato, in treatments with injury only. The comparative analysis,... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2018 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/1410 |
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