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首页> 外文期刊>The Kasetsart Journal >Phenotypic Diversity of Ethiopian Finger Millet [Eleusine coracana (L.) Gaertn] in Relation to Geographical Regions as an Aid to Germplasm Collection and Conservation Strategy
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Phenotypic Diversity of Ethiopian Finger Millet [Eleusine coracana (L.) Gaertn] in Relation to Geographical Regions as an Aid to Germplasm Collection and Conservation Strategy

机译：埃塞俄比亚小米[Eleusine coracana（L.）Gaertn]的表型多样性与地理区域的关系，以帮助种质资源的收集和保存

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Sixty-four accessions (960 individuals) of landraces collected from five former regions of Ethiopia and Eritrea covering different agro-ecologies were characterized for growth habit, ear shape, grain shape, grain surface, grain color and pericarp persistence. The objective was to study the pattern and phenotypic diversity of some characters in finger millet. The experiment was laid down in a randomized complete block design (RCBD) with three replications. The percentage frequencies of the phenotypic classes of each character were calculated. The Shanon-Weaver diversity index (H') was used to estimate the magnitude of diversity. One way analysis of variance of the non-normalized H using regions was under taken for individual characters. All the character considered showed marked differences in their distribution and variation. In no cases monomorphic classes were observed. Regional wise, Gojam and Welega revealed the highest diversity (H' = 0.84) while Eritrea showed the lowest (H' = 0.67). There was an increasing trend of diversity from north to south. Overall characters revealed intermediate to high diversity ranging from 0.60 for pericarp persistence to 0.99 for grain surface. Ear shape (P ≤ 0.01), grain shape (Pd ≤ 0.05) and grain surface (Pd ≤ 0.01) showed different levels of diversity among regions as opposed to growth habit, grain color and pericarp persistence whose variations were attributed to among accessions. The overall mean diversity estimate was high (H' = 0.82). Generally, the result revealed the existence of a vast range of diversity in the indigenous finger millet germplasm.
机译：从埃塞俄比亚和厄立特里亚的五个以前地区收集的六十四份（960份）地方品种的生长习性，穗形，粒形，粒面，粒色和果皮持久性特征涵盖了不同的农业生态。目的是研究小米某些字符的模式和表型多样性。实验被安排在具有三个重复的随机完整块设计（RCBD）中。计算每个字符的表型类别的百分比频率。 Shanon-Weaver多样性指数（H'）用于估计多样性的大小。对单个字符进行了非标准化H使用区域方差的一种方法分析。所考虑的所有字符在其分布和变化上都显示出明显的差异。在任何情况下都没有观察到单态类。从地区来看，戈雅姆和韦莱加的多样性最高（H'= 0.84），而厄立特里亚的多样性最低（H'= 0.67）。从北到南，多样性呈上升趋势。总体特征显示中等至高度的多样性，从果皮持久性的0.60到谷物表面的0.99。穗形（P≤0.01），谷粒形（Pd≤0.05）和籽粒表面（Pd≤0.01）在区域之间表现出不同的多样性水平，与生长习性，谷粒颜色和果皮持久性相反，其差异归因于不同种质。总体平均多样性估计很高（H'= 0.82）。通常，该结果揭示了土著手指小米种质中存在广泛的多样性。

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