الكشف عن الفطر Fusarium verticillioides في حبوب الذرة الصفراء و اختبار فاعلية بعض عوامل الاستحثاث الكيميائية في التقليل من الإصابة

Abstract EN

The study was conducted in order to detect fungus Fusarium verticillioides and evaluate the effectiveness of the factors forcing ( Algibberellin , Alsalicylic and zinc sulfate) against Fusarium verticillioides fungus that infects maize grain and causing it rot disease Albdhuerulfhh seedling, the insulation results showed, diagnosis and presence of 15 species of fungi belonging to 8 Races innate of maize grain.

It was cleared that the highest value of the total frequency was of the genus Fusarium which found in all samples and record type F.

verticillioides the highest rate of frequency (45%).

and found that the rate of infection in some samples was 100%.As for the estimated test pathogenicity of isolates fungus F.

verticillioides and isolated from maize Aranas using maize grain in the center Zorai water ager (WA), the results showed that all isolates was a nurse and caused significant reduction in the percentage of germination of maize grain.

Also the results of the study showed that steeping maize seeds factors forcing different periods and then grown in contaminated soil fungus F.

verticillioides led to the reduction of the negative impact of the fungus pathogen F.

verticillioides drenching for 1 hour marinating compared 12 and 24 hours where germination rate rose from 44.44% in contaminated soil fungus Fusarium verticillioides to 100.00 and 88.89 and 88.89%, respectively.

when we added zinc sulfate, Alsalicylic and Algibberellin respectively.