Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery
Introduction. Several diseases affect the Andean blackberry cultivation in Colombia, where anthracnose (Colletotrichum spp.) stands out for generating total losses. Objective. To estimate the doses of N, P, K, and Ca that allow greater tolerance to C. gloeosporioides strain 52 in Andean blackberry seedlings. Materials and methods. The experiment was carried out in 2017, in a greenhouse located in Mosquera in the department of Cundinamarca (Colombia), with seedlings sown in a substrate based on a 3: 1 mixture of peat and rice husks. A randomized complete block design with a central composite arrangement of 25 treatments and 15 seedlings were used per experimental unit. The inoculation of plant material was carried out 53 days after had begun the application of the treatments, with mycelial discs at a concentration of 9.53×104 conidia. The severity percentage (Sev), incubation period (IP), disease development rate (r), plant height (PLH), stem diameter (StD), leaf area (LA), chlorophyll content index (CCI), dry weight of the aerial part, and concentration of nutrients were measured. The analysis of variance with Tukey’s test (p<0.05), correlation analysis, generation of response surface models, and principal component analysis with the t-test (p<0.05) was carried out. Results. The severity percentage showed significant differences in the plants that received the fertilization treatments, the allometric variables, and chlorophyll content index were negatively and significantly related with the severity percentage. Simple linear effects models and interaction between elements and four components were obtained, which explained 63 % of the observed variability. Conclusions. The doses of 55, 3, 14, and 9 g plant of N, P2O5, K2O, and CaO, respectively, allowed a higher tolerance of plants against strain 52, as well as higher values in growth variables.
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Universidad de Costa Rica
2022
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Bautista-Montealegre, Luis Gabriel DEantonio-Florido, Leidy Yibeth Cardona, William Andrés Bolaños-Benavides, Martha Marina Fischer, Gerhard |
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Bautista-Montealegre, Luis Gabriel DEantonio-Florido, Leidy Yibeth Cardona, William Andrés Bolaños-Benavides, Martha Marina Fischer, Gerhard Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
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Bautista-Montealegre, Luis Gabriel DEantonio-Florido, Leidy Yibeth Cardona, William Andrés Bolaños-Benavides, Martha Marina Fischer, Gerhard |
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Bautista-Montealegre, Luis Gabriel |
| title |
Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
| title_short |
Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
| title_full |
Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
| title_fullStr |
Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
| title_full_unstemmed |
Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery |
| title_sort |
mineral nutrition and tolerance to colletotrichum spp. of andean blackberry (rubus glaucus benth.) in nursery |
| description |
Introduction. Several diseases affect the Andean blackberry cultivation in Colombia, where anthracnose (Colletotrichum spp.) stands out for generating total losses. Objective. To estimate the doses of N, P, K, and Ca that allow greater tolerance to C. gloeosporioides strain 52 in Andean blackberry seedlings. Materials and methods. The experiment was carried out in 2017, in a greenhouse located in Mosquera in the department of Cundinamarca (Colombia), with seedlings sown in a substrate based on a 3: 1 mixture of peat and rice husks. A randomized complete block design with a central composite arrangement of 25 treatments and 15 seedlings were used per experimental unit. The inoculation of plant material was carried out 53 days after had begun the application of the treatments, with mycelial discs at a concentration of 9.53×104 conidia. The severity percentage (Sev), incubation period (IP), disease development rate (r), plant height (PLH), stem diameter (StD), leaf area (LA), chlorophyll content index (CCI), dry weight of the aerial part, and concentration of nutrients were measured. The analysis of variance with Tukey’s test (p<0.05), correlation analysis, generation of response surface models, and principal component analysis with the t-test (p<0.05) was carried out. Results. The severity percentage showed significant differences in the plants that received the fertilization treatments, the allometric variables, and chlorophyll content index were negatively and significantly related with the severity percentage. Simple linear effects models and interaction between elements and four components were obtained, which explained 63 % of the observed variability. Conclusions. The doses of 55, 3, 14, and 9 g plant of N, P2O5, K2O, and CaO, respectively, allowed a higher tolerance of plants against strain 52, as well as higher values in growth variables. |
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Universidad de Costa Rica |
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2022 |
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https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655 |
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oai:portal.ucr.ac.cr:article486552023-06-16T13:43:27Z Mineral nutrition and tolerance to Colletotrichum spp. of Andean blackberry (Rubus glaucus Benth.) in nursery Nutrición mineral y tolerancia a Colletotrichum spp. de mora andina (Rubus glaucus Benth.) en vivero Bautista-Montealegre, Luis Gabriel DEantonio-Florido, Leidy Yibeth Cardona, William Andrés Bolaños-Benavides, Martha Marina Fischer, Gerhard Optimal dose plant nutrition response surface integrated management plant health dosis óptima nutrición de plantas superficie de respuesta manejo integrado sanidad vegetal Introduction. Several diseases affect the Andean blackberry cultivation in Colombia, where anthracnose (Colletotrichum spp.) stands out for generating total losses. Objective. To estimate the doses of N, P, K, and Ca that allow greater tolerance to C. gloeosporioides strain 52 in Andean blackberry seedlings. Materials and methods. The experiment was carried out in 2017, in a greenhouse located in Mosquera in the department of Cundinamarca (Colombia), with seedlings sown in a substrate based on a 3: 1 mixture of peat and rice husks. A randomized complete block design with a central composite arrangement of 25 treatments and 15 seedlings were used per experimental unit. The inoculation of plant material was carried out 53 days after had begun the application of the treatments, with mycelial discs at a concentration of 9.53×104 conidia. The severity percentage (Sev), incubation period (IP), disease development rate (r), plant height (PLH), stem diameter (StD), leaf area (LA), chlorophyll content index (CCI), dry weight of the aerial part, and concentration of nutrients were measured. The analysis of variance with Tukey’s test (p<0.05), correlation analysis, generation of response surface models, and principal component analysis with the t-test (p<0.05) was carried out. Results. The severity percentage showed significant differences in the plants that received the fertilization treatments, the allometric variables, and chlorophyll content index were negatively and significantly related with the severity percentage. Simple linear effects models and interaction between elements and four components were obtained, which explained 63 % of the observed variability. Conclusions. The doses of 55, 3, 14, and 9 g plant of N, P2O5, K2O, and CaO, respectively, allowed a higher tolerance of plants against strain 52, as well as higher values in growth variables. Introducción. El cultivo de mora en Colombia es afectado por varias enfermedades, donde sobresale la antracnosis (Colletotrichum spp.), que puede generar pérdidas totales. Objetivo. Estimar las dosis de N, P, K y Ca que permitan mayor tolerancia a C. gloeosporioides cepa 52 en plántulas de mora. Materiales y métodos. El experimento se realizó en 2017 en un invernadero ubicado en Mosquera en el departamento de Cundinamarca (Colombia), con plántulas sembradas en sustrato a base de la mezcla 3:1 turba y cascarilla de arroz. Se utilizó un diseño experimental de bloques completos al azar con arreglo compuesto central de veinticinco tratamientos y quince plántulas por unidad experimental. El material vegetal se inoculó 53 días después de iniciada la aplicación de los tratamientos, con discos de micelio a una concentración de 9,53×104 conidias. Se registró el porcentaje de severidad (Sev), período de incubación (PI) y tasa de desarrollo de la enfermedad (r); altura de planta (AP), diámetro del tallo (StD), área foliar (AF), índice de contenido de clorofilas (ICC), peso seco de la parte aérea y concentración de nutrientes. Se realizó análisis de varianza con prueba Tukey (p≤0,05), análisis de correlación, generación de modelos de superficie de respuesta y análisis de componentes principales con prueba t (p≤0,05). Resultados. El porcentaje de severidad mostró diferencias significativas en las plantas que recibieron los tratamientos de fertilización; las variables alométricas y el índice de contenido de clorofilas se correlacionaron negativa y significativamente con el porcentaje de severidad. Se obtuvieron modelos de efectos lineales simples e interacción entre elementos y cuatro componentes que explicaron 63 % de la variabilidad observada. Conclusiones. Las dosis de 55, 12, 14 y 9 g/planta de N, P2O5, K2O y CaO, respectivamente, permitieron mayor tolerancia de las plantas de mora frente a C. gloeosporioides cepa 52, así como los valores más altos en variables de crecimiento. Universidad de Costa Rica 2022-08-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article text/xml application/pdf application/epub+zip text/html audio/mpeg audio/mpeg https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655 10.15517/am.v33i3.48655 Agronomía Mesoamericana; 2022: Agronomía Mesoamericana: Vol. 33, Issue 3 (September-December); 48655 Agronomía Mesoamericana; 2022: Agronomía Mesoamericana: Vol. 33, Nº 3 (setiembre-diciembre); 48655 Agronomía Mesoamericana; 2022: Agronomía Mesoamericana: Vol. 33, Issue 3 (September-December); 48655 2215-3608 1021-7444 eng spa https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52361 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52362 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52363 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52364 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52365 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/48655/52366 Copyright (c) 2022 Luis Gabriel Bautista-Montealegre, Leidy Yibeth DEantonio-Florido, William Andrés Cardona, Martha Marina Bolaños-Benavides, Gerhard Fischer |