Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :

Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :

In order to delect the capacity survival differences of races II (v5) and XXII (v5, 6) of Hemileia vastatrix Berk and Br., the latter of greater genotypical complexity, two trials were carried out in a common host plant, Caturra variety, under controlled conditions. In the first experiment, the races were individually inoculated on Caturra coffee plants and their aggressiveness was evaluated. In the second one, their competition capacity was determined inoculating Caturra coffee plants with urediniospore mixture (1:1) of both races. To compare the results obtained under controlled conditions with the relative survival under natural conditions, samples of urediniospores were collected on Caturra variety planted in three experimental plots. The rust sample of each plot was inoculated on differential hosts. Confidence intervals for the evaluated characteristics showed no statistical differences between the two races. When races were inoculated in mixture on Caturra, race XXII tended to diminish as the competition cycles increased. Reaction of the differential host coffee plants to inoculation with rust isolates collected on Caturra, showed the presence of more than one race and also that race XXII is not the predominant one in the population, and neither the more complex races are.

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Bibliographic Details
Main Authors: 112138 Rodríguez Medina, K., 96555 Moreno Ruíz, G.
Format: biblioteca
Language:eng
Published: Jul-
Subjects:COFFEA ARABICA, HEMILEIA VASTATRIX, ROYA, ENFERMEDADES FUNGOSAS, PATOGENICIDAD, INOCULACION, COLOMBIA,
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id KOHA-OAI-BVE:88807
record_format koha
institution IICA
collection Koha
country Costa Rica
countrycode CR
component Bibliográfico
access En linea
databasecode cat-sibiica
tag biblioteca
region America Central
libraryname Sistema de Bibliotecas IICA/CATIE
language eng
topic COFFEA ARABICA
HEMILEIA VASTATRIX
ROYA
ENFERMEDADES FUNGOSAS
PATOGENICIDAD
INOCULACION
COLOMBIA
COFFEA ARABICA
HEMILEIA VASTATRIX
ROYA
ENFERMEDADES FUNGOSAS
PATOGENICIDAD
INOCULACION
COLOMBIA
spellingShingle COFFEA ARABICA
HEMILEIA VASTATRIX
ROYA
ENFERMEDADES FUNGOSAS
PATOGENICIDAD
INOCULACION
COLOMBIA
COFFEA ARABICA
HEMILEIA VASTATRIX
ROYA
ENFERMEDADES FUNGOSAS
PATOGENICIDAD
INOCULACION
COLOMBIA
112138 Rodríguez Medina, K.
96555 Moreno Ruíz, G.
Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
description In order to delect the capacity survival differences of races II (v5) and XXII (v5, 6) of Hemileia vastatrix Berk and Br., the latter of greater genotypical complexity, two trials were carried out in a common host plant, Caturra variety, under controlled conditions. In the first experiment, the races were individually inoculated on Caturra coffee plants and their aggressiveness was evaluated. In the second one, their competition capacity was determined inoculating Caturra coffee plants with urediniospore mixture (1:1) of both races. To compare the results obtained under controlled conditions with the relative survival under natural conditions, samples of urediniospores were collected on Caturra variety planted in three experimental plots. The rust sample of each plot was inoculated on differential hosts. Confidence intervals for the evaluated characteristics showed no statistical differences between the two races. When races were inoculated in mixture on Caturra, race XXII tended to diminish as the competition cycles increased. Reaction of the differential host coffee plants to inoculation with rust isolates collected on Caturra, showed the presence of more than one race and also that race XXII is not the predominant one in the population, and neither the more complex races are.
format
topic_facet COFFEA ARABICA
HEMILEIA VASTATRIX
ROYA
ENFERMEDADES FUNGOSAS
PATOGENICIDAD
INOCULACION
COLOMBIA
author 112138 Rodríguez Medina, K.
96555 Moreno Ruíz, G.
author_facet 112138 Rodríguez Medina, K.
96555 Moreno Ruíz, G.
author_sort 112138 Rodríguez Medina, K.
title Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
title_short Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
title_full Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
title_fullStr Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
title_full_unstemmed Supervivencia relativa de las razas II y XXII de Hemileia vastatrix :
title_sort supervivencia relativa de las razas ii y xxii de hemileia vastatrix :
publishDate Jul-
work_keys_str_mv AT 112138rodriguezmedinak supervivenciarelativadelasrazasiiyxxiidehemileiavastatrix
AT 96555morenoruizg supervivenciarelativadelasrazasiiyxxiidehemileiavastatrix
_version_ 1756059869468688384
spelling KOHA-OAI-BVE:888072020-02-03T21:56:29ZSupervivencia relativa de las razas II y XXII de Hemileia vastatrix : 112138 Rodríguez Medina, K. 96555 Moreno Ruíz, G. Jul-Set 2002engIn order to delect the capacity survival differences of races II (v5) and XXII (v5, 6) of Hemileia vastatrix Berk and Br., the latter of greater genotypical complexity, two trials were carried out in a common host plant, Caturra variety, under controlled conditions. In the first experiment, the races were individually inoculated on Caturra coffee plants and their aggressiveness was evaluated. In the second one, their competition capacity was determined inoculating Caturra coffee plants with urediniospore mixture (1:1) of both races. To compare the results obtained under controlled conditions with the relative survival under natural conditions, samples of urediniospores were collected on Caturra variety planted in three experimental plots. The rust sample of each plot was inoculated on differential hosts. Confidence intervals for the evaluated characteristics showed no statistical differences between the two races. When races were inoculated in mixture on Caturra, race XXII tended to diminish as the competition cycles increased. Reaction of the differential host coffee plants to inoculation with rust isolates collected on Caturra, showed the presence of more than one race and also that race XXII is not the predominant one in the population, and neither the more complex races are.Se evaluó en condiciones controladas la capacidad de sobrevivencia de la raza II (v5) y la raza XXII (v5-6) de roya Hemileia vastatrix Berk. y Br. existentes en Colombia en un susceptible común, la var. Caturra. En un primer experimento se inocularon por separado y se evaluó su agresividad. En el segundo, se determinó la capacidad de las razas para competir después de ser mezcladas en iguales proporciones. Un tercer experimento confrontó los resultados con la supervivencia relativa bajo condiciones naturales, utilizando inóculo proveniente de muestras de variedad Caturra de tres lotes experimentales. La muestra de roya de cada lote se inoculó en hospedantes diferenciales. Los intervalos de confianza para las características evaluadas indicaron que no existen diferencias estadísticas significativas entre las dos razas cuando se inoculan por separado. Sin embargo, cuando se inocularon en mezcla en la var. Caturra, la raza XXII tendió a disminuir a medida que los ciclos de competencia aumentaron. Además, el espectro de reacción de los diferenciales a la inoculación con las muestras de inóculo tomado bajo condiciones naturales sobre var. Caturra, indicó que las muestras estaban conformadas por más de una raza y que la raza XXII no es la predominante en la población, como tampoco lo son razas muy complejas.In order to delect the capacity survival differences of races II (v5) and XXII (v5, 6) of Hemileia vastatrix Berk and Br., the latter of greater genotypical complexity, two trials were carried out in a common host plant, Caturra variety, under controlled conditions. In the first experiment, the races were individually inoculated on Caturra coffee plants and their aggressiveness was evaluated. In the second one, their competition capacity was determined inoculating Caturra coffee plants with urediniospore mixture (1:1) of both races. To compare the results obtained under controlled conditions with the relative survival under natural conditions, samples of urediniospores were collected on Caturra variety planted in three experimental plots. The rust sample of each plot was inoculated on differential hosts. Confidence intervals for the evaluated characteristics showed no statistical differences between the two races. When races were inoculated in mixture on Caturra, race XXII tended to diminish as the competition cycles increased. Reaction of the differential host coffee plants to inoculation with rust isolates collected on Caturra, showed the presence of more than one race and also that race XXII is not the predominant one in the population, and neither the more complex races are.Se evaluó en condiciones controladas la capacidad de sobrevivencia de la raza II (v5) y la raza XXII (v5-6) de roya Hemileia vastatrix Berk. y Br. existentes en Colombia en un susceptible común, la var. Caturra. En un primer experimento se inocularon por separado y se evaluó su agresividad. En el segundo, se determinó la capacidad de las razas para competir después de ser mezcladas en iguales proporciones. Un tercer experimento confrontó los resultados con la supervivencia relativa bajo condiciones naturales, utilizando inóculo proveniente de muestras de variedad Caturra de tres lotes experimentales. La muestra de roya de cada lote se inoculó en hospedantes diferenciales. Los intervalos de confianza para las características evaluadas indicaron que no existen diferencias estadísticas significativas entre las dos razas cuando se inoculan por separado. Sin embargo, cuando se inocularon en mezcla en la var. Caturra, la raza XXII tendió a disminuir a medida que los ciclos de competencia aumentaron. Además, el espectro de reacción de los diferenciales a la inoculación con las muestras de inóculo tomado bajo condiciones naturales sobre var. Caturra, indicó que las muestras estaban conformadas por más de una raza y que la raza XXII no es la predominante en la población, como tampoco lo son razas muy complejas.COFFEA ARABICAHEMILEIA VASTATRIXROYAENFERMEDADES FUNGOSASPATOGENICIDADINOCULACIONCOLOMBIACenicafé (Colombia)

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