Incidence of alfalfa mosaic virus in alfalfa fields in Jordan.

Sawalha H.D.; Mansour A.N.

Incidence of alfalfa mosaic virus in alfalfa fields in Jordan.

1996

Sawalha H.D. | Mansour A.N.

A virus isolate was isolated fom fields in the Jordan Valley and Al-Hallabat areas. Identification as Alfalfa Mosaic Virus (AMV) was based on some preliminary studies on host range, mode of transmission and serology. Incidence of Alfalfa Mosaic Virus was highly correlated with the age of alfalfa plants, that ranged from 11-43% in the less than 1 year old fields, 50-70% in 1-2 years old fields, and 80-100% in 2-3 years old alfalfa fields. Maximum virus infectivity and /or content in alfalfa fields occured during the end of October and December in Al-Hallabat and the Jordan Valley, respectively. The minimum value occurred during summer months in both regions.

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Mots clés AGROVOC

aphidoidea elisa hosts identification immunologie immunology jordan jordania jordanie medicago sativa morbidite morbidity morbosidad pathogenicity patogenicidad plant viruses seasonal variation symptome symptoms test elisa vecteur de maladie vectores vectors virus de las plantas

Informations bibliographiques

D'autres materias

Virus des vegetaux; Hote; Sintomas; Variation saisonniere; Variacion estacional; Inmunologia; Huespedes; Pouvoir pathogene; Identificacion

Langue

anglais

Note

1 fig.; 13 ref. Summaries (Ar, En). AVAILABILITY: JORDOC, National Center for Agricultural Research and Technology Transfer, Baqa'a - Jordan

Type

Monograph; Summary; Non Conventional; Non-Conventional

Auteur institutionnelle

Jordan Univ., Amman (Jordan). Dept. of Plant Protection, Faculty of Agricultue

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Incidence of alfalfa mosaic virus in alfalfa fields in Jordan.

1996

Mots clés AGROVOC

Informations bibliographiques