Browsing by Autor "Edwin Marcelo Gonzales-Torrico"

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Biointensive and traditional production systems on agronomic parameters of vegetables
(Selva Andina Research Society, 2022) Edwin Marcelo Gonzales-Torrico; Fernando Pacasa-Quisbert; Juvenal Hurtado-Barrero
The Altiplano of Bolivia faces droughts and frequent frosts due to climate change, which affect yields and productivity of vegetables. Pro Rural, together with the Technical University of Oruro, has developed and implemented Biointensive Agroecological Family Units (UFABs) as an alternative to family agricultural production in the Altiplano, characterized by the efficient use of water, improving soil properties through localized fertilization and the substitution of agrochemicals for agro ecological inputs. The objective of this research was to determine two agricultural production systems on agronomic parameters of six vegetables. An experimental area was established in a factorial arrangement arranged in a randomized complete block design with six treatments (vegetable species) and two production systems (biointensive and traditional system), drip irrigation in the biointensive system and flooding in the traditional system. According to the results obtained on agronomic parameters, there is a statistical difference in yield and agronomic variables (plant weight, root length, and plant height) showing a superiority in the biointensive system, similar results are seen in leafy vegetables, the volume of water consumed shows that there is greater efficiency in the use of drip irrigation system with 90%, the amount of soil microorganisms is more than 50% in the biointensive system, similar results are seen in the chemical analysis of the soil.
Hongos endófitos asociados a la raíz del cultivo de la quinua (Chenopodium quinoa W.) en el altiplano de Bolivia
(2025) Edwin Marcelo Gonzales-Torrico
Los hongos endófitos presentan asociaciones mutualistas con las raíces de las plantas este tipo de asociaciones son importantes para la sobrevivencia de plantas en ambientes extremos. Actualmente, este tipo de hongos tienen un gran potencial biotecnológico en la resistencia de las plantas a factores abióticos. El objetivo del estudio fue describir la comunidad de hongos endófitos asociados con la raíz del cultivo de quinua que crecen en el altiplano sur de Bolivia. Se aislaron hongos endófitos de la raíz empleando el método de placas de fragmentos de quinua. Los aislados se identificaron por taxonomía morfologíca. Se aislaron 20 morfotipos, siendo los géneros más abundantes Fusarium (7 sp) y Penicillium (1 sp), sin embargo, 12 cepas no fueron identificados por métodos morfológicos tradicionales. Este estudio reporta la abundancia y diversidad de hongos endófitos en el cultivo de quinua del altiplano boliviano, algunos hongos tendrían un rol potencial de tolerancia a las condiciones de estrés abiótico.
Sistemas de producción biointensiva y tradicional sobre parámetros agronómicos de hortaliza
(Selva Andina Research Society, 2022) Edwin Marcelo Gonzales-Torrico; Fernando Pacasa-Quisbert; Juvenal Hurtado-Barrero
The Altiplano of Bolivia faces droughts and frequent frosts due to climate change, which affect yields and productivity of vegetables. Pro Rural, together with the Technical University of Oruro, has developed and implemented Biointensive Agroecological Family Units (UFABs) as an alternative to family agricultural production in the Altiplano, characterized by the efficient use of water, improving soil properties through localized fertilization and the substitution of agrochemicals for agro ecological inputs. The objective of this research was to determine two agricultural production systems on agronomic parameters of six vegetables. An experimental area was established in a factorial arrangement arranged in a randomized complete block design with six treatments (vegetable species) and two production systems (biointensive and traditional system), drip irrigation in the biointensive system and flooding in the traditional system. According to the results obtained on agronomic parameters, there is a statistical difference in yield and agronomic variables (plant weight, root length, and plant height) showing a superiority in the biointensive system, similar results are seen in leafy vegetables, the volume of water consumed shows that there is greater efficiency in the use of drip irrigation system with 90%, the amount of soil microorganisms is more than 50% in the biointensive system, similar results are seen in the chemical analysis of the soil.