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<p>Field pea (<i>Pisum sativum</i>&#xa0;L.) is an important cool-season food legume crop used for various diets owing to its high source of protein. However, productivity of field pea is affected by gall disease (<i>Physoderma viciae</i>) in the highlands of Ethiopia. A&#xa0;field survey was conducted to determine the distribution, intensity and relative importance of gall disease on field pea and to assess the associations of gall disease epidemic with farming practices, physical and biological factors in northwestern Ethiopia, during the 2019 and 2020 cropping seasons. Disease assessment was made across a&#xa0;total of 104 field pea farms in seven districts of three zones. Weather data of each district were obtained from meteorological stations and used for descriptive analysis. Ordinal logistic regression was used to analyse the associations of gall disease intensity in field pea with farming practices, physical and biological factors. The highest gall disease incidence (39.56%) and severity (24.99%) were assessed in field pea in South Gondar. The severity of gall disease in field pea was the highest in Lay Gayint (36.90%), followed by Tach Gayint (34.86%) and Sekela (15.58%) districts. Predictor variables, such as zone, year, growth stage, sowing date, weed management and altitude were significantly (<i>P</i> &lt; 0.05) associated with disease incidence and severity. Lower disease incidence and severity had a&#xa0;strong association with good weed management, May and July planting, altitude of &lt; 2800 m, mixed cropping and fungicide foliar spray and, thus, such variables should be considered as management strategies in field pea production areas.</p>

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Spatial and Temporal Analysis of Field Pea Gall (Physoderma viciae) Disease Epidemics and Its Association with Biophysical Factors in Highlands of Ethiopia

  • 期刊论文

  • 发表日期：

    2025年3月11日

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  • Getnet Yitayih,
  • Habtamu Terefe,
  • Chemeda Fininsa

摘要

Field pea (Pisum sativum L.) is an important cool-season food legume crop used for various diets owing to its high source of protein. However, productivity of field pea is affected by gall disease (Physoderma viciae) in the highlands of Ethiopia. A field survey was conducted to determine the distribution, intensity and relative importance of gall disease on field pea and to assess the associations of gall disease epidemic with farming practices, physical and biological factors in northwestern Ethiopia, during the 2019 and 2020 cropping seasons. Disease assessment was made across a total of 104 field pea farms in seven districts of three zones. Weather data of each district were obtained from meteorological stations and used for descriptive analysis. Ordinal logistic regression was used to analyse the associations of gall disease intensity in field pea with farming practices, physical and biological factors. The highest gall disease incidence (39.56%) and severity (24.99%) were assessed in field pea in South Gondar. The severity of gall disease in field pea was the highest in Lay Gayint (36.90%), followed by Tach Gayint (34.86%) and Sekela (15.58%) districts. Predictor variables, such as zone, year, growth stage, sowing date, weed management and altitude were significantly (P < 0.05) associated with disease incidence and severity. Lower disease incidence and severity had a strong association with good weed management, May and July planting, altitude of < 2800 m, mixed cropping and fungicide foliar spray and, thus, such variables should be considered as management strategies in field pea production areas.