التفاصيل البيبلوغرافية
| العنوان: |
Bio regulation of Meloidogyne incognita (Kofoid & White) Chitwood and M. javanica (Treub) Chitwood complex in coffee roots. |
| Alternate Title: |
Bio regulación del complejo Meloidogyne incognita (Kofoid & White) Chitwood y M. javanica (Treub) Chitwood en raíces de café. (Spanish) |
| المؤلفون: |
María Castro-Toro, Ángela, Alberto Rivillas-Osorio, Carlos |
| المصدر: |
Revista de Ciencias Agricolas; Jul-Dec2022, Vol. 39 Issue 2, p128-142, 15p |
| مصطلحات موضوعية: |
SOUTHERN root-knot nematode, ROOT-knot nematodes, TRICHODERMA harzianum, METARHIZIUM anisopliae, BEAUVERIA bassiana, COFFEE |
| Abstract (English): |
The Meloidogyne incognita and M. javanica complex cause damage to the coffee plants' roots with loss of productive potential. Traditional management against this complex is based on the use of chemical molecules which causes problems in soil health and harmful to the environment. In this regard, the Micosplag® biotechnological input [Paecilomyces lilacinus (Thom) Samson, 1974, Metarhizium anisopliae (Metsch) Sorokin and Beauveria bassiana (Balsamo) Vuillemin] and Tricho-D® (Trichoderma harzianum Rifai, 1969) were evaluated under greenhouse conditions against root-knot nematode complex. A dose of 2g. L-1 of water was used for Micosplag® and 10g. L-1 of water for Tricho-D®, applying a volume of 20mL.1 per plant. The nematode inoculation was carried out eight days after the sowing, using 2500 eggs per plant. Bioinputs were applied preventively and also as bioregulators of an existing nematodes population. Nine treatments, which corresponded to different moments of application of bioinputs in soil and soil plus vermocompost were evaluated. Results showed the lowest levels of infection when the Micosplag® bioinput was applied preventively (infection level of 6%), followed by the Tricho-D® treatment (infection 12%). There were statistical differences with the controls which were inoculated alone with the nematodes. When the two Bioinputs were applied preventively, they offered greater protection to the roots against nematodes. Dry weights of root and the aerial part of the plants showed the lowest values in treatments where the nematode was inoculated. Six months after the experiment was established, the three fungi that compose the Micosplag® Bioinput were isolated from the rhizosphere of the coffee plants. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): |
El complejo Meloidogyne incognita y M. javanica ocasiona daños en las raíces de las plantas de café con pérdidas de su potencial productivo. El manejo tradicional contra este complejo se basa en el uso de moléculas químicas que han causado problemas en la salud del suelo y son nocivas para el medio ambiente. En condiciones de invernadero se evaluaron los insumos biotecnológicos Micosplag® [Paecilomyces lilacinus (Thom) Samson, 1974, Metarhizium anisopliae (Metsch) Sorokin y Beauveria bassiana (Balsamo) Vuillemin] y Tricho-D® (Trichoderma harzianum Rifai, 1969) en la protección de raíces de café contra el complejo de nematodos noduladores. Se empleó una dosis de 2g.L-1 de agua para Micosplag® y 10g. L-1 para Tricho-D® aplicando 20mL.1 por planta. La inoculación del nematodo se efectuó ocho días después de la siembra, empleando 2500 huevos por planta. Los Bioinsumos se aplicaron de manera preventiva y curativa. Se evaluaron nueve tratamientos, correspondientes a diferentes momentos de aplicación de los Bioinsumos en suelo y en suelo más lombricompuesto. Los niveles más bajos de infección se obtuvieron con el Bioinsumo Micosplag® de forma preventiva (infección de 6%), seguido de Tricho-D® (infección 12%). Hubo diferencias estadísticas con los testigos inoculados sólo con los nematodos. Los Bioinsumos de manera preventiva, ofrecieron mayor protección a las raíces contra los nematodos. Los pesos secos de raíz y parte aérea de las plantas registraron los valores más bajos donde se inóculo el nematodo. A los seis meses de establecido el experimento, en la rizósfera de las plantas de café se aislaron los tres hongos del Bioinsumo Micosplag. [ABSTRACT FROM AUTHOR] |
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