Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.iniap.gob.ec/handle/41000/5190
Tipo de Documento: Revista
Artículo
Autor : Vásquez G., José
Mora C., Eloy
Título : Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador
Título de la serie: Euphytica 153: 339-342
Palabras clave : MAÍZ;ZEA MAYS;RAYADO FINO;VIRUS;PÉRDIDAS DE RENDIMIENTO;ECUADOR
Fecha de publicación : 2007
Código: *EC-INIAP-BEESC-MGC. Quito (Euphytica 153:339-342 2007)
Páginas: p. 339-342
Estación: E. E. Santa Catalina
Resumen : 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.
Citación : Vásquez G., J., & Mora C., E. (2007). Incidence of and yiel loss caused by maize rayado fino virus in maize cultivars in Ecuador. Euphytica, 153, 339-342. doi 10.1007/s 10681-006-3889-4
URI : http://repositorio.iniap.gob.ec/handle/41000/5190
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