Ananda Rosa Beserra Santos, L. R. C. Dias, Paulo Henrique Soares da Silva, Delson Laranjeira, Candido Athayde Sobrinho, Luana Maria Alves da Silva
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引用次数: 0
摘要
由真菌 Sclerotium rolfsii 引起的豇豆枯萎病是一种低效的化学防治方法。精油具有抗真菌特性，是农用化学品的替代品。在这里，我们从种子处理的角度评估了精油在控制 S. rolfsii 方面的效率及其对种子萌发的影响。根据浓度为 8.0 毫升/千克种子-1 的 S. rolfssi 真菌菌落的直径，L. sidoides、L. origanoides 和 C. zehntneri 精油分别减少了 61.5%、67.2% 和 40% 的菌丝生长。发芽率的降低发生在浓度最高时。真菌对所有评估的精油都很敏感，但对 Lippia 精油更为敏感。精油浓度为 4.0 毫升/千克-1 时对种子处理有效。
Seed treatment with essential oils to control Sclerotium rolfsii Sacc
The sclerotia wilt in cowpea caused by the fungus Sclerotium rolfsii has in chemical control an inefficient option. Essential oils have antifungal properties, constituting an alternative to agrochemicals. Here, we evaluated the efficiency of essential oils in the control of S. rolfsii, from seed treatment, as well as their effect on seed germination. Based on the diameter of the colonies of the fungus S. rolfssi submitted to a concentration of 8.0 ml/kg of seed-1, the oils of L. sidoides, L. origanoides and C. zehntneri reduced mycelial growth by 61.5, 67.2 and 40% respectively. The reduction in the percentage of germination occurred at the highest concentrations. The fungus was sensitive to all evaluated oils, being more sensitive to Lippia oils. Seed treatment with essential oils is effective at a concentration of 4.0 ml/kg-1.
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