Coffee Science
URI permanente desta seção${dspace.url}/handle/123456789/3355
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Item The application of arbuscular mycorrhizal fungi and mycorrhizae helper bacteria combined with compost to reduce the Pratylenchus coffeae population in an Arabica coffee plantation(Editora UFLA, 2024-10-31) Hindersah, Reginawanti; Asyiah, Iis NurArbuscular mycorrhizal fungi (AMF) and mycorrhiza helper bacteria (MHB) are potential biological agents that control Pratylenchus coffeae, a major endoparasitic nematode in coffee plantations. An experiment was conducted to determine the role of AMF and MHB inoculants combined with compost in reducing plant damage and the number of nematodes in the soil and roots, as well as increasing the AMF infection rate in juvenile (JP) and mature (MP) Arabica coffee plants. The field experiment with a randomized block design was conducted with both juvenile (JP) and mature plants, consisting of 8 combination treatments and one control with three replications. The JP and MP plants received 1.5-50 g and 25-100 g AMF inoculant/plant and compost at doses of 5 or 7.5 and 10 or 15 kg/plant, respectively, while the MHB liquid inoculant concentrations were 10 mL and 100 mL, respectively. The control plants were not treated with AMF, MHB, or compost. The AMF and MHB inoculants combined with compost reduced leaf and root damage, but increased the degree of AMF infection in the roots of JP and MP. The nematode populations in roots and shoots of treated JP were reduced by 48.7-74.5% and 56.0 80.5%, respectively; in mature plants, the reductions ranged from 40.5 to 74.4% in roots and 44.0 to 75.4% in the soil. These results suggest that AMF, MHB, and compost effectively reduced P. coffeae infection in Arabica coffee plants under field conditions.Item Biocontrol of root-knot nematode Meloidogyne incognita in arabica coffee seedling by using fortified bacterial consortium(Universidade Federal de Lavras, 2023-01-11) Pradana, Ankardiansyah Pandu; Hoesain, Mohammad; Asyiah, Iis Nur; Adiwena, Muh; Budiman, Aris; Yousif, Ahmed Ibrahim AlrashidThe damage caused by the southern root-knot nematode (Meloidogyne incognita) in coffee plants has been reported in various countries, including Indonesia. The measures to control the nematodes on coffee seedlings and fields depend on synthetic nematicides. Addressing this issue requires not only a more environmentally friendly and cheaper technology but also equal effectiveness comparable to synthetic nematicides. This study aimed to test the effectiveness of fortified bacterial consortium (FBC) involving a combination of liquid organic fertilizer (LOF), botanical pesticide, and a bacterial consortium to control M. incognita infection in Coffea arabica seedlings. The treatments in this study consisted of control, synthetic nematicide with the active ingredient fluopyram, and various FBC concentrations ranging from 20%, 40%, 60%, 80%, and 100%. The results demonstrated that the application of 60% to 100% FBC increased plant growth. The most effective and efficient treatment for increasing plant growth was the application of 60% FBC. When compared with control plants, 60% FBC treatment resulted in 6.8% longer root, 9.5% higher plant, 5.3% heavier plant fresh weight, and 4.8% heavier root fresh weight. We also found that the application of 60% to 100% FBC increased the amount of chlorophyll in leaves. FBC application also reduced the number of nematodes in the soil up to 60.6%, the number of galls up to 286.4%, and the severity of root damage up to 118.2%. This study indicates that the application of 60% FBC is the most effective and efficient in controlling M. incognita and stimulating the growth of C. arabica seedlings.