| dc.contributor | Dueñas Alvarado, Dario | |
| dc.creator | Lombeida Naranjo, Darwin Erdulfo | |
| dc.date | 2023-05-24T16:47:33Z | |
| dc.date | 2023-05-24T16:47:33Z | |
| dc.date | 2023 | |
| dc.date.accessioned | 2023-08-08T17:08:13Z | |
| dc.date.available | 2023-08-08T17:08:13Z | |
| dc.identifier | http://dspace.utb.edu.ec/handle/49000/13875 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8044190 | |
| dc.description | The document produced deals with detailed information on the management of Rhizoctonia solani in cotton cultivation. R. solani is a pathogen with worldwide distribution that causes important economic losses in most perennial and annual plants, including cotton, the diseases commonly caused being the so-called drowning of seedlings and root rot. It was prepared by collecting information from virtual libraries, updated texts, magazines and articles, presentations, conferences and all scientific bibliographic material that contributes to the development of this documentary research. The conclusions determine that the disease of the cotton stem (Gossypium hirsutum), caused by the fungus Rhizoctonia solani Kuhn, produces severe losses in the crop because it considerably reduces the planting density. The increase in the price of agrochemicals has limited their use in combating this disease; it is also known as damping off, caused by the Rhizoctonia solani fungus present in the soil, which causes necrosis in the hypocotyl at the neck level and the death of the seedlings; Usually, the control of this disease is based on the use of fungicides to cure synthetic seeds, although the treatments are not always effective and produce adverse effects on the environment; but for farmers, its control lies in treating the seed with Vitavax in doses of 300 g per 45 kg of seed and applying two kilos per hectare of Captan mixed with pre-emergent herbicides to the soil and as a biological control measure, it is the use of bacteria. antagonists of the fungus that can multiply and establish themselves rapidly in the rhizosphere such as Bacillus and Pseudomonas, being Thichoderma to a lesser extent. | |
| dc.description | The document produced deals with detailed information on the management of Rhizoctonia solani in cotton cultivation. R. solani is a pathogen with worldwide distribution that causes important economic losses in most perennial and annual plants, including cotton, the diseases commonly caused being the so-called drowning of seedlings and root rot. It was prepared by collecting information from virtual libraries, updated texts, magazines and articles, presentations, conferences and all scientific bibliographic material that contributes to the development of this documentary research. The conclusions determine that the disease of the cotton stem (Gossypium hirsutum), caused by the fungus Rhizoctonia solani Kuhn, produces severe losses in the crop because it considerably reduces the planting density. The increase in the price of agrochemicals has limited their use in combating this disease; it is also known as damping off, caused by the Rhizoctonia solani fungus present in the soil, which causes necrosis in the hypocotyl at the neck level and the death of the seedlings; Usually, the control of this disease is based on the use of fungicides to cure synthetic seeds, although the treatments are not always effective and produce adverse effects on the environment; but for farmers, its control lies in treating the seed with Vitavax in doses of 300 g per 45 kg of seed and applying two kilos per hectare of Captan mixed with pre-emergent herbicides to the soil and as a biological control measure, it is the use of bacteria. antagonists of the fungus that can multiply and establish themselves rapidly in the rhizosphere such as Bacillus and Pseudomonas, being Thichoderma to a lesser extent. | |
| dc.description | El documento realizado trata la información detallada sobre manejo de Rhizoctonia solani en el cultivo de algodón. R. solani es un patógeno de distribución mundial que ocasiona pérdidas económicas importantes en la mayoría de las plantas perennes y anuales, incluyendo el algodón, siendo las enfermedades comúnmente causadas es el llamado ahogamiento de las plántulas y la pudrición de las raíces. Se elaboró mediante la recolección de información de bibliotecas virtuales, textos actualizados, revistas y artículos, ponencias, congresos y todo material bibliográfico de carácter científico que aporte al desarrollo de esta investigación documental. Las conclusiones determinan que el mal del talluelo del algodón (Gossypium hirsutum), causado por el hongo Rhizoctonia solani Kuhn, produce severas perdidas en el cultivo debido a que reduce considerablemente la densidad de siembra. El aumento del precio de los agroquímicos ha limitado su utilización en el combate de esta enfermedad; se conoce también como damping off, causada por el hongo Rhizoctonia solani presente en el suelo, que produce necrosis en el hipocótilo al nivel del cuello y la muerte de las plántulas; usualmente, el control de esta enfermedad se basa en el uso de fungicidas cura semillas sintéticas, aunque los tratamientos no siempre son efectivos y producen efectos adversos sobre el ambiente; pero para los agricultores su control radica en tratar la semilla con Vitavax en dosis de 300 g por 45 kg de semilla y aplicar al suelo dos kilos por hectárea de Captan mezclado con los herbicidas preemergentes y como medida de control biológico, es la utilización de bacterias antagonistas del hongo que pueden multiplicarse y establecerse rápidamente en la rizosfera como Bacillus y Pseudomonas, siendo en menor escala Thichoderma. | |
| dc.format | 19p. | |
| dc.format | application/pdf | |
| dc.language | es | |
| dc.publisher | BABAHOYO: UTB, 2023 | |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | |
| dc.subject | Algodón | |
| dc.subject | Enfermedades | |
| dc.subject | Mal del talluelo | |
| dc.title | Manejo de Rhizoctonia solani en el cultivo de algodón | |
| dc.type | bachelorThesis | |
