Sceering of different soil-borne fungi and their disease severity of young robinia (Robinia pseudoacacia)‎ seedlings

المؤلفون المشاركون

Marzani, Qasim A.
Abd al-Rahman, Dlin N.
Hasan, Azhin M.

المصدر

مجلة جامعة دهوك

الناشر

جامعة دهوك

تاريخ النشر

2016-06-30

دولة النشر

العراق

عدد الصفحات

8

التخصصات الرئيسية

العلوم الزراعية

الملخص الإنجليزي

Six locations (Erbil , Minara, and Shanadar recreation parks, 40 and 60 metre road side plantations, and conference palace’s road)) planted with Robinia (Robinia pseudoacacia) in Erbil Province, Kurdistan Region- Iraq, were selected for investigation of pathogenic fungi attacking these trees.

Sampling of robinia plant roots and rhizosphere soil were taken for fungal isolation.

The results showed the presence of Rhizoctonia solani, Verticillium dahliae, Fusarium solani and Fusarium oxysporum in all locations.

The highest disease incidence was in Minara park (83%) and the lowest was in Erbil park (37%).

The pathogenicity of these fungi was evaluated and their disease severities were measured at two timing stages which included three-month old and one-year old seedlings.

The results of disease severity on 3-months old seedlings revealed that Verticillum dahliae was superior in causing symptoms of yellowing, leaflet drop, leaf drop, and dead tip with disease severity scores of 2.9, 3, 2.8, and 2.3, respectively.

On 1-year old seedlings, Fusarium solani was caused the highest score of yellowing (2.5) and leaflet drop (5.83), while the wilt fungus Fusarium oxysporum was the most pathogenic in causing leaf drops (4.8).

The highest score of dead tips was recorded by Rhizoctonia solani (2.17).

نوع البيانات

أوراق مؤتمرات

رقم السجل

BIM-797919

• APA
• MLA
• AMA