Assessment of Sanitary Status of Certified Citrus Nursery Production in Souss Massa Valley, Morocco
The aim of this study was to assess the sanitary status of nurseries in the most important citrus growing area in Morocco (Souss Massa Valley). Samples were collected from the two main certified citrus nurseries and from the surrounding commercial citrus groves. Sanitary conditions of certified mother trees (budwood sources) were ascertained for the main virus and virus-like diseases through serological, molecular and biological assays. Furthermore, detection of Phytophthora spp. in rootstock rhizosphere and in the soil under the pots was performed by the soil dilution plate method using a selective medium. Seasonal variation of Phytophthora spp. was also investigated from March to July. The collected isolates were identified morphologically and also by molecular means using specific primers. P. nicotianae was the only species detected, which showed the highest inoculum density and root infection in one nursery in July. Both monitored nurseries were free from the investigated virus and virus-like agents, whereas the surveyed citrus groves around the nurseries displayed only infections with Citrus psorosis virus (CPsV) and Citrus infectious variegation virus (CIVV).
Citrus nursery Sanitary status Phytophthora spp. Morocco
A. El Aimani M. Achouri K. Djelouah A. M. D Onghia A. Ippolito
Institut Agronomique et Viterinaire Hassan II, P. 0. B. 18/S, 80000 Agadir, Morocco Centre International de Hautes Etudes Agronomiques Miditerraniennes (CIHEAM/MA1B), Via Ceglie 9, 700 Dipartimento di Protezione delle Piante e Microbiologia Applicata, University of Bari, Via Amendola
国际会议
11th International Citrus Congress(第11届国际柑橘大会)
武汉
英文
1163-1168
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）