ورقة علمية منشورة : Seed-borne mycoflora of alfalfa (Medicago sativa L.) in the Riyadh Region of Saudi Arabia

Journal Article

Al-Askar, Abdulaziz A. . 2011

• نوع عمل المنشور: بحث
• المجلة \ الصحيفة: Springer-Verlag and the University of Milan
• رقم العدد: 16
• رقم الإصدار السنوي: 2012
• الصفحات: 273-281

مستخلص المنشور

Seed-borne mycoflora of alfalfa (Medicago sativa L.) in the Riyadh Region of Saudi Arabia           Abstract Fifteen seed samples of local alfalfa (Medicago sativa L.) cultivar (Hegazy) collected from fields at different  governorates of the Riyadh region in Saudi Arabia were screened for their seed-borne mycoflora. Standard moist blotter and deep-freezing blotter methods recommended by the International Seed Testing Association, in addition to an innovative alkaline seed-bed method were applied. A total of 24 genera and 35 species of fungi were isolated using the above-mentioned techniques. Alternaria alternata, Cladosporium sp., Aspergillus sp., Stemphylium sp. and Penicillium sp. were the genera most commonly isolated. Among the various techniques adopted for detection, the alkaline NaOH method was found to be effective and yielded the maximum number of pathogenic fungi. Syndromes of seed discoloration were also investigated. The alkaline seed-bed method using NaOH was used to detect saprophytic and pathogenic seed-borne fungi).