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5 results on '"García González, Marcos Tulio"'

3. Policultivos para el manejo de Spodoptera frugiperda (J Smith) y la entomofauna benéfica asociada en el maíz (Zea mays L.)

Author

García González, Marcos Tulio, Rodríguez Coca, Liuder Isidoro, Rodríguez Jáuregui, Marcia María, Fernández Cancio, Yander, García González, Marcos Tulio, Rodríguez Coca, Liuder Isidoro, Rodríguez Jáuregui, Marcia María, and Fernández Cancio, Yander

Abstract

The objective of the research was to evaluate the use of monoculture corn (M), corn-pumpkin (M+P), corn-pea bean (M+P B), corn-bean (M+B) and corn-sunflower (M+S) cropping systems in the management of Spodoptera frugiperda and the associated beneficial entomofauna. It was carried out in two sowing periods defined for Cuba (rainy and low rainfall) and in two agroecosystems (plain (70 m.s.n.m.) and pre-mountain (150 m.s.n.m.). The experimental design was a randomized block design, with five treatments (cropping systems) and four replicates in each year. The levels of Spodoptera frugiperda infestation and the associated entomofauna (predators and parasitoids) in these systems were determined. It was found that the M+P B and M+S cropping systems presented lower incidence of S. frugiperda than the corn monoculture. The number of beneficial insect species found was higher in the polyculture systems for both agroecosystems., El objetivo de la investigación fue evaluar el empleo de los sistemas de cultivos maíz monocultivo (M), maíz-calabaza (M+C), maíz-frijol caupí (M+F), maíz-ajonjolí (M+A) y maíz-girasol (M+G) en el manejo de Spodoptera frugiperda y la entomofauna benéfica asociada. Fue realizado en dos periodos de siembra definidos para Cuba (lluvioso y poco lluvioso) y en dos agroecosistemas (llano (70 m.s. n. m.) y premontaña (150 m.s. n. m.). El diseño experimental fue de bloques al azar, con cinco tratamientos (sistemas de cultivos) y cuatro réplicas en cada año. Se determinaron los niveles de infestación de Spodoptera frugiperda y la entomofauna asociada (depredadores y parasitoides) a estos sistemas. Se comprobó que los sistemas de cultivos M+C y M+A presentaron menor incidencia de S. frugiperda, que el monocultivo del maíz. El número de especies de insectos benéficos encontrados fue superior en los sistemas de policultivos para ambos agroecosistemas.

Published
2022

5. Uso de bioestimulantes en cultivos sometidos a condiciones de estrés hídrico.

Author

García Pérez, Erik Alexander, García González, Marcos Tulio, Rodríguez Coca, Liuder Isidoro, García Pérez, Dairy Esther, and Lorenzo Marcial, Idaileisy

Subjects
*ALGAE, *SOIL moisture, *CHITOSAN, *BRASSINOSTEROIDS, *AGRICULTURE, *CROP development, *DROUGHT tolerance, *SCIENCE publishing, *CROP physiology, *CROP yields, *PLANT roots
Abstract

This work was carried out with the objective of documenting the main biostimulants used in the world to mitigate the effects of water stress, as well as the physiological, morphological and biochemical effect that these substances cause in the crops that have been studied. A review of scientific articles published in national and international journals, as well as master's and doctoral theses from different universities and scientific centers was carried out. The application of biostimulants is one of the most promising agricultural practices to mitigate the effects of drought on plants. There are numerous microorganisms in the world, as well as synthetic or naturally occurring substances that have a positive effect on crop development, yields and drought tolerance. They can optimize biochemical, physiological and anatomical processes such as regulating stomatal conductance, increasing the concentration of proline and cellular osmolytes, increasing photosynthetic efficiency, inducing the production of LEA proteins and antioxidant enzymes, reducing cell membrane damage, maintaining leaf water content and increasing the soil exploration capacity of the root system. [ABSTRACT FROM AUTHOR]

Published
2022

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