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Determination of Major Factors Associated with Fungal Contamination of Wheat Under Storage Conditions

机译:储存条件下小麦真菌污染相关的主要因素

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Storage fungi are among the major factors causing post-harvest deterioration of crop produce worldwide. However, their association to the major factors that contribute to fungal contamination under storage conditions remains under studied in many parts of Sub-Saharan Africa including Ethiopia. Therefore, the current work was carried out with the objectives to identify major factors that contribute to fungal contamination of wheat grains under storage conditions. For this purpose mycological analysis was carried out using 180 wheat grain samples collected from three major wheat growing zones (Arsi, West Arsi and Bale) of South East Ethiopia. Results of the mycological analysis revealed the contamination of wheat grains by fungal species at different locations and storage time with different frequencies. Fungal contamination of samples indicated that highest incidence was observed at West Arsi (96.98%) followed by Bale (91.76%) and Arsi (86.43%). Fungal contamination also varied with storage period with the highest incidence of (98.62%) followed by (89.78%) and (86.77%) was observed after six months, upon harvest and three months of storage, respectively. The highest fungal incidence (98.62%) was recorded after six months storage of wheat grain. Fungal incidence was highly associated with two of the independent variables, namely, temperature and relative humidity of storage in a logistic regression model. However, there is no significant association (p0.05) with grain moisture content and storage type of wheat grains under storage conditions.
机译:储存真菌是在全球范围内产生收获后收获后的主要因素之一。然而,他们与储存条件下有助于真菌污染的主要因素的关系仍然在包括埃塞俄比亚在内的撒哈拉以南非洲的许多地区进行了遗骸。因此,目前的工作是以目的为识别储存条件下对小麦颗粒进行真菌污染的主要因素。为此目的,Mycological分析采用来自东南埃塞俄比亚的三大小麦生长区(Arsi,West Arsi和Bale)收集的180个小麦谷物样品进行。 Mycological分析的结果显示不同位置的真菌物种污染小麦籽粒和不同频率的储存时间。样品的真菌污染表明,在西Arsi(96.98%)下观察到最高发病率,然后是BALE(91.76%)和ARSI(86.43%)。真菌污染也因储存期而变化,最高发病率(98.62%),然后在六个月后观察到(86.77%)分别在收获和三个月的储存后观察到(86.77%)。六个月储存小麦籽粒后,记录了最高的真菌发病率(98.62%)。真菌发病率与两个独立变量高度相关,即逻辑回归模型中的储存温度和相对湿度。然而,在储存条件下没有显着的关联(P <0.05),晶粒水分含量和储存类型的小麦颗粒。

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