Teff Grain Physical and Chemical Quality Responses to Soil Physicochemical Properties and the Environment
Teff Grain Physical and Chemical Quality Responses to Soil Physicochemical Properties and the Environment
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DOI：
10.3390/agronomy9060283
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发表时间：
2019-06-01
期刊：
影响因子：
3.7
通讯作者：
Payne, William
中科院分区：
文献类型：
--
作者：
Abewa, Anteneh;Adgo, Enyew;Payne, William
画眉草是画眉草属唯一栽培的谷类作物，是埃塞俄比亚人的主要主食。在埃塞俄比亚，画眉草的品质和市场价格主要取决于其颗粒颜色。本研究的目的是评估埃塞俄比亚阿姆哈拉州和奥罗米亚州两个主要画眉草种植区多个地点的土壤理化特征对画眉草籽粒颜色和单一品种营养品质的影响。谷物和土壤样品是从种植流行画眉草品种 Quncho' (DZ-Cr-387/RIL-355) 的 24 个田间地点采集的。对从 24 个地点采集的苔麸谷物样品进行了谷物颜色、近似成分、氨基酸成分和谷物矿物质浓度的评估，并对土壤样品的理化性质进行了分析。样本位置均值被视为不同，p < 0.05。画眉草谷物颜色指数的色调 (H)、饱和度 (S) 和亮度 (V)、谷物近似成分、氨基酸成分和矿物质浓度因地点而异 (p < 0.05)。籽粒S色值与土壤pH、SOC、Ca、Mg、S、Na呈显着负相关。 pH 值、SOC、Ca、Mg 和 S 较高的土壤通常具有较低的 S 值，因此画眉草颗粒颜色较白。土壤和画眉草籽粒理化性质的测量参数存在相当大的变化。结果表明，有必要进行管理干预，以实现埃塞俄比亚两个主要地区种植的同一品种苔麸的谷物颜色和化学成分的一致性。
Teff is the only cultivated cereal crop from the genus Eragrostis and it is the major staple food of Ethiopians. In Ethiopia, the quality of teff and its market price are primarily determined by its grain color. The objective of this study was to evaluate the effects of soil physicochemical characteristics across multiple locations in the two main teff growing regions of Amhara and Oromia states in Ethiopia on teff grain color and nutritional quality of a single variety. Grain and soil samples were collected from 24 field sites cultivated with the popular teff variety Quncho' (DZ-Cr-387/RIL-355). The teff grain samples collected from the 24 locations were evaluated for grain color, proximate composition, amino acid composition, and grain mineral concentration and the soil samples were analyzed for their physicochemical properties. Sample location means were considered different p < 0.05. Teff grain color indices of hue (H), saturation (S), and brightness (V), grain proximate composition, amino acid composition, and mineral concentration differed among locations (p < 0.05). There were significant negative correlations between grain S color value and soil pH, SOC, Ca, Mg, S, and Na. Soils with greater pH, SOC, Ca, Mg, and S generally had lower S values and thus, whiter color teff grains. There were considerable variations in the measured parameters for soil and teff grain physicochemical properties. The results indicated an opportunity for management interventions necessary to obtain uniformity in grain color and chemical composition for the same variety of teff grown in the two major regions in Ethiopia.