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العنوان
Studies on Certain Diseases of Wheat Caused by Seed-Borne Fungi in Upper Egypt /
المؤلف
El-Eraky, Amal Mohamed Ibrahim.
هيئة الاعداد
باحث / امال محمد ابراهيم
مشرف / عبد المنعم محمود
مناقش / عبد الرازق عبد العليم
مناقش / محمد نظيم سيد
الموضوع
Fungi
تاريخ النشر
1993.
عدد الصفحات
100 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم النبات
الناشر
تاريخ الإجازة
14/3/1993
مكان الإجازة
جامعة أسيوط - كلية الزراعة - Plant Protection.
الفهرس
Only 14 pages are availabe for public view

from 119

from 119

Abstract

The present investigation was concerned with damping— off diseases of wheat incited by fungi associated with grains in Upper Egypt.
Results of this study can be summarized as following:
— Twenty seven fungai species belonging to fourteen genera were found to be associated with wheat grain sanip— les collected from different localities in Upper Egypt. The most frequent fungi were Aspergillus niger and Alternaria alternate however, the least frequent ones
were Fusarium spp., Curvularia lunata and Rhizoctonia solani.
2 - Number of fungi obtained from wheat grains varied by locality, New Valley Governorate gave the highest number of fungi followed by Assiut then Sohag and finally
Kena and El—Minia Governorates.
3 - Alternaria alternata, C. lunate, F. Spp., Drechslera
spp., and R. solani caused post-emergence damping—off on Stork, Giza 164, Giza 160 and Sakha 69 wheat cul— tivars. However, the tested fungi except F. sanibu— cinum and F. oxysporurn caused pre-emergence damping-j
off.
4 — Fungi varied in their ‘athogenicity in the tested wheat cultivars. The highest incidence of pre-emergence