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首页> 外文期刊>Agricultural Sciences >Identification of Ethiopian Yam (&i&Dioscorea&/i& spp.) Collections and Their Phenotypic Diversity Study
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Identification of Ethiopian Yam (&i&Dioscorea&/i& spp.) Collections and Their Phenotypic Diversity Study

机译：鉴定埃塞俄比亚山药（＆ i＆ dioscorea＆ spp。）收藏品及其表型多样性研究

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Yam plant has a major role in Ethiopia particularly in densely populated areas of south, southwestern, and western parts of the country. It grows in a wide range of soils with an altitude range of 1140 to 2200 masl. This study was done to identify yam species collected from major producing areas of the country. The total of sixty yam accessions from ten different geographic origins of South and Oromiya region of Ethiopia were used. The collected samples were planted in complete randomized block design at two research sites of South Agricultural Research Institute. Forty-five qualitative morphological characterizations were used to characterize and identify Dioscorea species. Among these qualitative characters observed in the study presence and absence of spines on stems and roots, number of male and female inflorescence, stem length, twining direction, and flesh color were the major traits considered for species identification. The organoleptic properties evaluation was carried out using fifteen selected local farmers. Statistical analysis was done using Numerical Taxonomy and Multivariate Analysis System Version 2.02 NTSYpc software program and the data reduction function of SPSS for windows. Based on this study, sixty yam germplams of ten major growing areas of the country were identified into six Dioscorea species. These identified Dioscorea species were again subjected to qualitative morphological characterization and 33 morphological traits revealed variability. This implies presence of high diversity in yam ( Dioscorea species) of Ethiopia. Most of the morphological variations among the yam genotypes were contributed by young petiole color, tendency of tuber to branch, and tuber flesh color. Hence, these morphological traits could be taken as useful traits for identification of yam cultivars.
机译：山药厂在埃塞俄比亚具有重要作用，特别是在南部，西南和西部地区的密集地区。它在各种各样的土壤中增长，海拔1140至2200马斯。完成了该研究以识别从该国的主要产区收集的山药物种。使用了来自埃塞俄比亚南部和奥罗米亚地区的十个不同地理起源的六十山药的含量。在南农业研究所的两项研究地点种植收集的样品，在南部农业研究所的两个研究遗址中完成了完整的随机块设计。用于表征和鉴定二十次物种的四十五个定性形态学特征。在研究存在和缺乏茎和根部的情况下观察到的这些定性特征中，雄性和雌性花序的数量，茎长，缠绕方向和肉颜色是物种鉴定所考虑的主要性状。通过十五种所选局部农民进行感官特性评价。使用数值分类和多变量分析系统版本2.02 NTSYPC软件程序以及SPSS for Windows的数据减少功能进行统计分析。基于这项研究，六十山地区的全国主要生长地区的六十山地区被鉴定为6种六种司法区。这些鉴定的二晕物种再次进行定性形态表征和33种形态特征揭示了变异性。这意味着埃塞俄比亚山药（Dioscorea）的高多样性。大多数山药基因型的形态变异是由年轻的叶柄颜色，块茎的倾向和分支的倾向，以及块茎肉颜色。因此，这些形态特征可以作为鉴定山药品种的有用特征。

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