authors |
Ammar Azzawi, Hussein al-Dakhil , Thamer Hanish |
Abstract |
In order to test the sensitivity of some sugar beet varieties to powdery mildew disease Which is caused by fungus Erysiphe betae (Vaňha) Weltzien. In Deir-Ezzor. The results showed that only four varieties of 32 species have the ability to resist disease, A: Semper,Humber, Ghazira and poly emeraude, Where including the Severity of the infection ranged between 1.33 and 2.00 degrees, After 14 weeks of infection fungus pathogen. While the severity of the infection ranged in sensitive varieties's 8 between 4.33 and 5.66 degrees. The results showed delayed disease resistant Varieties injury about two weeks compared to the items sensitive conditions in the study area, The average weekly increase in the amount of disease (incidence) of 1.4 and 7.1% in sensitive and resistant varieties respectively. The results also show low amount of disease (AUDPC) in resistant varieties by 82-85% compared with sensitive varieties. The rates of loss in weight of the roots, and the degree of sweetness in the category of disease-resistant Sempero 1.99 and 4.11%. As she was in the category most affected by Helios, 32.67 and 28.53%, respectively.
Keywords: powdery mildew, sugar beet, resistant varieties, and epidemiological Erysiple betae, |
الكاتب |
عمار عزاوي , حسين الدخيل , ثامر حنيش |
الملخص |
أظهرت نتائج اختبار حساسية عدة أصناف من الشوندر السكري لمرض البياض الدقيقي في ظروف SemperGhazira, Humber, و poly emeraude ، وتراوحت فيهم شدة الإصابة بين1.33 بينت النتائج تأخر إصابة الأصناف المقاومة بالمرض بحوالي السبوعين مقارنة بالأصناف %85-82مقارنة بالحساسة. وبلغت معدلات الفاقد في وزن الجذور، ودرجة الحلاوة في الصنف المقاوم للمرض Semper الكلمات المفتاحية: البياض الدقيقي، الشوندر السكري، مقاومة أصناف، وبائية الفطر Erysiphe betae |
Alfurat University @ 2024 by SyrianMonster | All Rights Reserved