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首页> 外文期刊>Journal of Natural Sciences Research >Severity of Chocolate Spot (Botrytis fabae) Disease on Yield and Yield Components of Faba Bean (Vicia Faba L.) Varieties at Guduru District, Horro Guduru Wollega Zone, Western Ethiopia
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Severity of Chocolate Spot (Botrytis fabae) Disease on Yield and Yield Components of Faba Bean (Vicia Faba L.) Varieties at Guduru District, Horro Guduru Wollega Zone, Western Ethiopia

机译：埃塞俄比亚州古古古鲁古鲁古尔图区古娃区甘豆（Vicia Faba L.）品种巧克力斑（Botrytis Fabae）疾病的严重程度

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Chocolate spot (Botrytis fabae Sard.) is one of the major diseases threatening faba bean (Vicia faba L.) production and limiting its productivity in Ethiopia. The yield losses reach up to 100% on susceptible cultivars. Although a number of faba bean varieties with good yield potential have been released, their reaction to this major disease and yield performance are little understood in western Ethiopia. Thus, chocolate spot severity on 14 improved faba bean varieties and one local cultivar were tested under natural infections at Guduru district in Horro Guduru Wollega zone of western Ethiopia. The experimental site was located at longitude 36 o 39’28.8”-37 o 40’11.2”E and latitude 9 o 9’24.6”-10 o 20’59.9”N with altitudes range from of 1500-2450m and annual range of rainfall 900mm-2000mm with temperature range of 15 o C -25 o C as well as 262km distance from Addis Ababa capital city of Ethiopia. The field experiments consisted of 15 treatments (14 varieties and a local cultivar) are laid out in a randomized complete block design (RCBD) with three replications during the 2017/18 crop season. The data were analyzed by SAS computer software version 9.1.3. The onset and progress of chocolate spot severity was assessed (with a 1-9 scale) and yield and yield components were recorded and statistically analysed. The varieties varied significantly (P < 0.05) in disease severity, grain yield, pod per plant, plant height and hundred seed weight. Degaga, Gora, Bulga-70 and Holeta-02 varieties were exhibited moderate to lower resistance to chocolate spot disease, whereas, Mesay, local cultivar and Kasa varieties were highly susceptible to chocolate spot disease. The yield performance of Gora and Degaga were also superior at the study area 993.33kg/ha and 941.83kg/ha, respectively and thus, are recommended for faba bean production in western Ethiopia. The effect of chocolate spot disease on yield and yield components from coefficient determination of linear regression show that grain yield was more stressed by disease than other yield components. Generally, the study indicated that improved faba bean varieties reacted differently to chocolate spot disease.
机译：巧克力斑（Botrytis fabae Sard。）是威胁弗吉亚豆类（Vicia Faba L.）生产和限制其在埃塞俄比亚的生产力之一的主要疾病之一。产量损失在易感品种上达到100％。虽然已经释放了许多具有良好产量潜力的Faba Bean品种，但在埃塞俄比亚西埃塞俄比亚中对这一主要疾病和产量表现的反应很少。因此，在埃塞俄比亚州西埃罗·古罗图·沃尔利加地区古鲁区的自然感染下，测试了14种改善的Faba Bean品种和一本地品种的巧克力点严重程度。实验部位位于经度36 o 39'28.8“-37 o 40'11.2”E和纬度9 o 9'24.6“-10 o 20'59.9”n，高度范围为1500-2450米和年降雨量900mm-2000mm，温度范围为15 o C-25 o C，距离亚的斯亚贝巴首都埃塞俄比亚262公里。该田间实验由15种治疗（14个品种和局部品种）组成，在2017/18作物季节中的三种复制中被任命的完整块设计（RCBD）中定制。数据通过SAS计算机软件9.1.3分析了数据。评估巧克力点严重程度的发作和进展（以1-9种规划），并记录产量和产量组分并进行统计分析。这些品种在疾病严重程度，谷物产量，每株植物，植物高度和百种子重量中有显着变化（P <0.05）。 Degaga，Gora，Bulga-70和Holeta-02品种都表现出中度至降低巧克力点疾病的抗性，而Mesay，局部品种和Kasa品种高度易受巧克力点疾病的影响。 Gora和Degaga的产量性能也在研究区993.33kg / ha和941.83kg / ha上优越，因此建议在埃塞俄比亚西部的Faba Bean生产中。巧克力点疾病对线性回归系数测定产量和产量组分的影响表明，粮食产量比疾病更加强调，而不是其他产量组分。通常，该研究表明，改进的Faba Bean品种与巧克力点疾病不同的反应。

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