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Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador

Three sowing date trials, each planted with one cultivar, were performed to measure the natural in¬cidence of the Maize rayado fino virus (MRFV). The lowest incidences (1-6%) were obtained at the sowing dates normally practised in the tested regions. Earlier or later sowing dates had higher to much...

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Autores Principales: Vásquez G., José, Mora C., Eloy
Formato: Artículos
Lenguaje:en
Publicado: 2018
Materias:
MAÍZ
ZEA MAYS
RAYADO FINO
VIRUS
PÉRDIDAS DE RENDIMIENTO
ECUADOR
Acceso en línea:http://repositorio.iniap.gob.ec/handle/41000/5190
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spelling ir-:41000-51902018-09-27T21:02:31Z Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador Euphytica 153: 339-342 Vásquez G., José Mora C., Eloy MAÍZ ZEA MAYS RAYADO FINO VIRUS PÉRDIDAS DE RENDIMIENTO ECUADOR Three sowing date trials, each planted with one cultivar, were performed to measure the natural in¬cidence of the Maize rayado fino virus (MRFV). The lowest incidences (1-6%) were obtained at the sowing dates normally practised in the tested regions. Earlier or later sowing dates had higher to much higher inci¬dences (up to 18 and 32%). Two cultivar trials, one with four cullivars and one with eight cultivars, showed sig¬nificant differences in incidence, ranging from 14.0% in ‘Iniap-160’ to 2.0% in 'Cadet-2’. In one trial with plots of 1000m2, the cultivar Iniap-122 was sown at three sowing dates. In each plot, plants that developed MRFV symptoms at the 8-10 leaf stage, at the 12-14 leaf stage and at the emergence of tassels were marked. Marked MRFV-al'fected plants were compared with non-MRFV-affected plants in their neighbourhood to estimate yield loss due to MRFV. The yield losses at the three sowing dates were 2.5, 1.6 and 4.8%, respec¬tively. It was concluded that the yield loss due to MRFV is quite small provided sowing is restricted to the nor¬mal sowing period. 2018-09-27T21:01:11Z 2018-09-27T21:01:11Z 2007 Revista Artículo *EC-INIAP-BEESC-MGC. Quito (Euphytica 153:339-342 2007) http://repositorio.iniap.gob.ec/handle/41000/5190 en Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ p. 339-342 application/pdf E. E. Santa Catalina
institution INIAP
collection Repositorio INIAP
biblioteca Biblioteca INIAP
language en
format Artículos
topic MAÍZ
ZEA MAYS
RAYADO FINO
VIRUS
PÉRDIDAS DE RENDIMIENTO
ECUADOR
spellingShingle MAÍZ
ZEA MAYS
RAYADO FINO
VIRUS
PÉRDIDAS DE RENDIMIENTO
ECUADOR
Vásquez G., José
Mora C., Eloy
Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
description Three sowing date trials, each planted with one cultivar, were performed to measure the natural in¬cidence of the Maize rayado fino virus (MRFV). The lowest incidences (1-6%) were obtained at the sowing dates normally practised in the tested regions. Earlier or later sowing dates had higher to much higher inci¬dences (up to 18 and 32%). Two cultivar trials, one with four cullivars and one with eight cultivars, showed sig¬nificant differences in incidence, ranging from 14.0% in ‘Iniap-160’ to 2.0% in 'Cadet-2’. In one trial with plots of 1000m2, the cultivar Iniap-122 was sown at three sowing dates. In each plot, plants that developed MRFV symptoms at the 8-10 leaf stage, at the 12-14 leaf stage and at the emergence of tassels were marked. Marked MRFV-al'fected plants were compared with non-MRFV-affected plants in their neighbourhood to estimate yield loss due to MRFV. The yield losses at the three sowing dates were 2.5, 1.6 and 4.8%, respec¬tively. It was concluded that the yield loss due to MRFV is quite small provided sowing is restricted to the nor¬mal sowing period.
author Vásquez G., José
Mora C., Eloy
author_facet Vásquez G., José
Mora C., Eloy
author_sort Vásquez G., José
title Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
title_short Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
title_full Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
title_fullStr Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
title_full_unstemmed Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
title_sort incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in ecuador
publishDate 2018
url http://repositorio.iniap.gob.ec/handle/41000/5190
_version_ 1635512274426789888
score 11,871979

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