Uso de dos tipos de parafilm y métodos alternativos para el control de la podredumbre de la corona en el periodo poscosecha de banano de exportación.
Fecha
2018-12
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Universidad EARTH
Resumen
El objetivo de este trabajo fue evaluar el uso de un tipo de Parafilm, específicamente el ParaSeal, así como de tratamientos alternativos para el control de los patógenos que provocan la pudrición de corona en bananos de exportación en periodo poscosecha. Siete tratamientos fueron evaluados: Parafilm médico, ParaSeal, aceite de linaza más una solución de fungicidas sintéticos utilizados como tratamiento poscosecha, aceite de linaza puro, el testigo comercial, el cual consistió en evaluar la mezcla de dos tipos de fungicidas (Tiabendazol® y Azoxystrobin®), el testigo referencial que fue inoculado solo con la suspensión de esporas del hongo y el testigo absoluto, el cual no cuenta con la aplicación de ningún producto. Todos los tratamientos, exceptuando el testigo absoluto fueron inoculados con una suspensión de esporas de hongos a una concentración de 7.0 x 105 ufc/mL aplicados directamente a la corona de los bananos y fueron evaluados por un periodo de 27 días simulando el tiempo de transporte hasta llegar al mercado. Se registraron diferencias significativas entre los tratamientos siendo el testigo comercial el mejor a lo largo del tiempo y alcanzó un grado de 6.17 en la escala de Frossard a los 27 días comparados con el testigo referencial 7.28. Asimismo tanto el Parafilm médico como el ParaSeal fueron efectivos para el control de pudrición de corona y los tratamientos con aceite de linaza y la mezcla de fungicidas y solo aceite de linaza tuvieron resultados peores que el testigo. Por otro lado, los tratamientos que redujeron el menor grado de madurez fueron el ParaSeal y Parafilm médico con un grado de 2.10 y 2.21 en maduración, respectivamente y el testigo comercial que alcanzó mayor maduración con 2.90. Por lo tanto, tanto el testigo comercial como los dos tipos de parafilm pueden ser usados para exportación, ya que reducen la pudrición de corona y no afectan la maduración de la fruta.
The objective of this work was to evaluate the use of a type of Parafilm, specifically ParaSeal, as well as alternative treatments for the control of pathogens that cause crown rot in post-harvest export bananas. Seven treatments were evaluated: medical Parafilm, ParaSeal, EARTH commercial treatment base on synthetic fungicides plus linseed oil, pure linseed oil, EARTH commercial treatment base on the mixture of two types of fungicides (Tiabendazol® y Azoxystrobin®), referential control, which was just applied with spore suspension of the fungus and absolute control, did not have the application of any product. All the treatments, except for the absolute control were inoculated with a spore suspension of the fungus concentration 7.0 x 105 cfu/mL applied directly to the crown of the bananas and were evaluated for 27 days, simulating the transport time until reaching the market. There were significant differences between the treatment and the best performance was registered by the EARTH commercial treatment with 6.17 on the index of rot crown on the Frossard scale compared with the referential control 7.39. In addition, the ParaSeal and medical Parafilm were also effective registered 6.72; 6.67 respectively. On the other hand, the linseed oil and the mix the chemical and linseed oil were not effective registered 7.56, 7.39 respectively. Concerning to the repining of the fruit the best treatments were the ParaSeal and medical Parafilm the due recorded 2.10; 2.21 respectively, compared to the chemical control obtaining the highest value on the repeating scale 2.90. Base on the results of the research the EARTH commercial treatment and both ParaSeal and medical Parafilm can be used for exporting fruit due to reduced crown rot as well has no effect on ripening of the fruit.
The objective of this work was to evaluate the use of a type of Parafilm, specifically ParaSeal, as well as alternative treatments for the control of pathogens that cause crown rot in post-harvest export bananas. Seven treatments were evaluated: medical Parafilm, ParaSeal, EARTH commercial treatment base on synthetic fungicides plus linseed oil, pure linseed oil, EARTH commercial treatment base on the mixture of two types of fungicides (Tiabendazol® y Azoxystrobin®), referential control, which was just applied with spore suspension of the fungus and absolute control, did not have the application of any product. All the treatments, except for the absolute control were inoculated with a spore suspension of the fungus concentration 7.0 x 105 cfu/mL applied directly to the crown of the bananas and were evaluated for 27 days, simulating the transport time until reaching the market. There were significant differences between the treatment and the best performance was registered by the EARTH commercial treatment with 6.17 on the index of rot crown on the Frossard scale compared with the referential control 7.39. In addition, the ParaSeal and medical Parafilm were also effective registered 6.72; 6.67 respectively. On the other hand, the linseed oil and the mix the chemical and linseed oil were not effective registered 7.56, 7.39 respectively. Concerning to the repining of the fruit the best treatments were the ParaSeal and medical Parafilm the due recorded 2.10; 2.21 respectively, compared to the chemical control obtaining the highest value on the repeating scale 2.90. Base on the results of the research the EARTH commercial treatment and both ParaSeal and medical Parafilm can be used for exporting fruit due to reduced crown rot as well has no effect on ripening of the fruit.
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BANANOS, MUSA (BANANOS), SISTEMAS POSTCOSECHA, CONTROL DE ENFERMEDADES EN PLANTAS, PATOGENESIS, FUNGICIDAS, PELICULA PLASTICA