Grados-dia para el desarrollo de Myzus persicae (Homoptera: Aphididae) colectados en Veracruz, Mexico.
1992
Villanueva Jimenez Juan Antonio | Ventura Godinez Jorge
Spanish; Castilian. Se determino en condiciones de temperaturas constantes (10, 15, 20, 25 y 30 grados C) la temperatura base de desarrollo (TB) de cada estadio ninfal (N) de Myzus persicae (Sulz.) (Homoptera: Aphididae): 6.45, 5.69, 3.78 y 3.31 grados C para N1, N2, N3 y N4, respectivamente, asi como una TB general de 4.93 grados C. Los grados-dia de desarrollo (GDD) obtenidos en cada estadio ninfal fueron los siguientes: 28.646, 25.437, 30.312 y 36.497 GDD para N1, N2, N3 y N4, respectivamente, asi como un requerimiento de GDD desde N1 hasta adulto de 120.892. A partir de la TB general obtenida en laboratorio, se evaluaron los requerimientos de GDD en condiciones de temperatura variable (invernadero), que fueron de 123.242 GDD.
Show more [+] Less [-]English. The basis threshold temperature (TB) for each nymphal stage (N) of Myzus persicae (Sulz.) (Homoptera: Aphididae) were determined under constant temperature conditions (10, 15, 20, 25 and 30 deg C): 6.45, 5.69, 3.78 and 3.31 deg C for N1, N2, N3 and N4, respectively, as well as a 4.93 deg C general TB. The Degree Days (DD) obtained for each nymphal stage were 28.646, 25.437, 30.312 and 36.497 DD for N1, N2, N3 and N4, respectively as well as a requirement of GDD from N1 to adult of 120.89 DD. The requirements of DD under variable temperature conditions (in greenhouse) were evaluated using the general TB obtained in laboratory, accumulating 123.242 DD for the whole nymphal development.
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