African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12405

Full Length Research Paper

Incidence and distribution of seed-borne fungi associated with wheat in Markazi Province, Iran

  Masomeh Hajihasani, Abolfazl Hajihassani* and Shahab Khaghani        
Young Researchers Club, Arak Branch, Islamic Azad University, Arak, Iran.
Email: [email protected]

  •  Accepted: 14 March 2012
  •  Published: 20 March 2012

Abstract

 

53 seed samples collected from harvested seed loads of irrigated wheat fields in Markazi province in the central of Iran was used for this study. Isolation and identification of seed-borne fungi were conducted according to standard tests described by the International Seed Testing Association (ISTA). A total of 15 fungal species including Tilletia laevisTilletia triticiUstilago triticiFusarium graminearum,Fusarium culmorumMicrodochium nivaleBipolaris sorokinianaAlternaria alternata,Curvularia sp., Aspergillus nigerAspergillus candidusAspergillus flavusPenicilliumsp., Mucor sp. and Rhizopus sp. were identified in three wheat cultivars of Backcross Roshan, Alvand and C-78-14. The average of infection level in tested samples to bothT. laevis and T. tritici was estimated as much as 7.1% in the province and the minimum and maximum infection levels were found in Lilian (Khomein) and Jirya regions (Arak), respectively. The average of infection rate by U. tritici in seed samples was 1.3% while it was as much as 17.4% for both F. culmorum and B. sorokiniana in the province. The frequency of A. niger and Penicillium sp. was predominant with an infection range of 37.8 and 29.1%, respectively. For the first time, the incidence and infection level of seed-borne fungi in wheat seeds have been determined in the central part of Iran.

 

Key words: Infection rate, seed-borne fungi, seed quality, wheat.