Academic Journal
Influence of Metrological Parameters on the Development of Exserohilum turcicum (Pass.) Leonard and Suggs on Maize in Tanzania
| العنوان: | Influence of Metrological Parameters on the Development of Exserohilum turcicum (Pass.) Leonard and Suggs on Maize in Tanzania |
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| المؤلفون: | Nwanosike, Martin Royal Okechukwu, Mabagala,, Robert B |
| المساهمون: | Authors are very grateful to Tertiary Education Trust Fund, Abuja and Federal College of Education, Zaria, Nigeria for the funding and study fellowship that facilitated the study in the Sokoine University of Agriculture (SUA), Morogoro, Tanzania. |
| المصدر: | International Journal of Agricultural and Food Research; Vol 6, No 3 (2017) |
| بيانات النشر: | Science Target |
| سنة النشر: | 2018 |
| المجموعة: | Science Target Manuscript Tracking System (E-Journals) |
| الوصف: | Twenty maize varieties and inbred lines were used to determine the effect of weather parameters on the development of Exserohilum turcicum, incitant of northern leaf blight disease in Tanzania. Artificially inoculated field experiments were conducted in Morogoro, Arusha, and Mbeya Regions in 2013 and 2014 in a 15 m² plot size, replicated three times in a randomized complete block design. The disease severity indexes were recorded at weekly interval from 65 days after sowing and subsequently for 5 weeks, while weather reports were obtained from Tanzania Meteorological Agency. Data were subjected to ANOVA, correlation coefficient, and coefficient of determination (R²), while means were separated using LSD (P ≤ 0.05). Results on disease severity index indicated high significant (P ≤ 0.05) differences in the region, year, and interaction between region and year. Rainfall, relative humidity, and temperature significantly favored maize infection by E. turcicum in Mbeya, Arusha, and Morogoro to 76.1%, 58.3%, and 41.8%, respectively. Negative significant (P ≤ 0.05) correlation coefficients were found between minimum temperature and severity index in Morogoro (r = -0.694) and Arusha (r = -0.748) Regions while significantly positive correlation existed between relative humidity and severity index (r = 0.739) in Mbeya Region. Although the weather parameters encouraged prevalence of northern leaf blight disease in all the regions, relative humidity (69%) in Mbeya favored high development of the pathogen, while minimum temperatures encouraged infection in Morogoro (18.6ᵒC) and Arusha (14.2ᵒC) Regions. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://www.sciencetarget.com/Journal/index.php/IJAFR/article/downloadSuppFile/802/2341; https://www.sciencetarget.com/Journal/index.php/IJAFR/article/view/802 |
| DOI: | 10.24102/ijafr.v6i3.802 |
| الاتاحة: | https://www.sciencetarget.com/Journal/index.php/IJAFR/article/view/802 https://doi.org/10.24102/ijafr.v6i3.802 |
| رقم الانضمام: | edsbas.2F8FA17B |
| قاعدة البيانات: | BASE |
| DOI: | 10.24102/ijafr.v6i3.802 |
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