IDENTIFICATION OF PHYTOPHTHORA SPECIES ASSOCIATED WITH PISTACHIO GUMMOSIS IN SOUTHERN IRAN

Z. Banihashemi
In recent years the pistachio (Pistacia vera L.) production has greatly increased in Iran and extended from Kerman province to neighboring provinces of Yazd and Fars. Due to high salt tolerance of pistachio trees, may lands not suitable to other crops, have been used for pistachio production. Among fungal pathogens, Phytophthoras are the limiting factor under both high and salt contents. Attempts were made to isolate Phytophthora species from infected root and crown tissues. Citrus leaf baiting technique combined with antibiotic medium was used for soil assay. Although Phytophthora citrophthora assumed to be the predominant species in most pistachio growing regions, P. Drechsleri appears to be also of great concern in different areas in Kerman province. Other Phytophthora species like P. cryptogea and P. nicotianae were occasionally isolated. The latter species was isolated only from soil. All Phytophthora species were pathogenic on pistachio seedlings. P. citrophthora was more aggressive than other species to different cultivars of P. vera.
Banihashemi, Z. (1995). IDENTIFICATION OF PHYTOPHTHORA SPECIES ASSOCIATED WITH PISTACHIO GUMMOSIS IN SOUTHERN IRAN. Acta Hortic. 419, 349-352
DOI: 10.17660/ActaHortic.1995.419.58
https://doi.org/10.17660/ActaHortic.1995.419.58

Acta Horticulturae