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dc.contributor.author
Galindo Rodríguez, Lyda Constanza
dc.contributor.author
Sterling, Armando
dc.contributor.author
Muñoz Ramirez, Herminton
dc.contributor.author
Martinez Moyano, Edgar
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Fonseca Restrepo, Jesica Andrea
dc.contributor.author
Loaiza Molina, Luis Carlos
dc.date.available
2024-04-19T16:05:48Z
dc.date.issued
2024-03-18
dc.identifier.citation
Galindo Rodríguez, Lyda Constanza; Sterling, Armando; Muñoz Ramirez, Herminton; Martinez Moyano, Edgar; Fonseca Restrepo, Jesica Andrea; et al.; Dynamic analysis of resistance in Colombian elite Hevea brasiliensis genotypes as a breeding strategy for enhancing South American leaf blight management under disease non-escape conditions in the Amazon region; Springer; European Journal of Plant Pathology; 18-3-2024; 1-14
dc.identifier.issn
0929-1873
dc.identifier.uri
http://hdl.handle.net/11336/233627
dc.description.abstract
South American Leaf Blight (SALB) is the primary limitation to the establishment of new rubber (Hevea brasiliensis) crops in Latin America. This study aimed to assess the temporal dynamics of resistance to SALB in 99 elite Colombian genotypes and the IAN 873 cultivar (control) of H. brasiliensis in small-scale clone trials conducted under conditions with a high disease prevalence in the northwestern Colombian Amazon. Resistance monitoring was carried out on a monthly basis and analyzed over five climatic periods. Three variables were recorded: attack severity (AT, ranging from 0 to 4), reaction type (TR, ranging from 1 to 6) and stromal density (ST, ranging from 0 to 4). The maximum scores for TR and ST were used to classify the level of resistance of the genotypes. Highly significant differences in the mean values of AT, TR and ST among the genotypes, across the periods, and in the interaction between genotype and period were found. Over time, an increase in symptoms (AT) and signs (TR and ST) of SALB was observed. During the rainy periods, SALB intensity was highest, resulting in a leaf area affected ranging from 16 to 30%. Eight genotypes showed partial resistance (PR) (TR < 5 and ST < 2), while 16 genotypes demonstrated complete resistance (CR) (TR < 3 and ST = 0), and 76 genotypes were highly susceptible (HS) (TR > 5 or ST > 2). The temporal analysis identified 23 Colombian superior genotypes with varying degrees of SALB resistance, which can be a valuable breeding resource for improving SALB management in the Colombian Amazon region.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Hevea brasiliensis
dc.subject
Elite genotypes
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Genetic resistance
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Pseudocercospora ulei
dc.subject.classification
Ciencias de las Plantas, Botánica
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Dynamic analysis of resistance in Colombian elite Hevea brasiliensis genotypes as a breeding strategy for enhancing South American leaf blight management under disease non-escape conditions in the Amazon region
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-04-16T09:47:48Z
dc.identifier.eissn
1573-8469
dc.journal.pagination
1-14
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Galindo Rodríguez, Lyda Constanza. Universidad de la Amzonia; Colombia
dc.description.fil
Fil: Sterling, Armando. Universidad de la Amzonia; Colombia
dc.description.fil
Fil: Muñoz Ramirez, Herminton. Universidad de la Amzonia; Colombia
dc.description.fil
Fil: Martinez Moyano, Edgar. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
dc.description.fil
Fil: Fonseca Restrepo, Jesica Andrea. Universidad de la Amzonia; Colombia
dc.description.fil
Fil: Loaiza Molina, Luis Carlos. Universidad de la Amzonia; Colombia
dc.journal.title
European Journal of Plant Pathology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s10658-024-02840-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10658-024-02840-1
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