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首页> 外文期刊>Genetic Resources and Crop Evolution >Phenotypic diversity in wild barley (Hordeum vulgare L. ssp spontaneum (C. Koch) Thell.) accessions collected in Jordan
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Phenotypic diversity in wild barley (Hordeum vulgare L. ssp spontaneum (C. Koch) Thell.) accessions collected in Jordan

机译：在约旦收集的野生大麦（大麦（S. spontaneum（C. Koch）Thell。）种的表型多样性

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摘要

Wild barley, Hordeum vulgare L. ssp. spontaneum (C. Koch) Thell., is the progenitor of cultivated barley. Almost unanimously the center of diversity is considered to be in the Fertile Crescent of the Near East, where wild barley grows under a wide range of environmental and climatic conditions. Jordanian wild barley is expected to harbor genes useful for the improvement of cultivated barley, particularly those associated with tolerance to drought. This study evaluated 103 wild barley accessions collected from different areas of Jordan along with 29 cultivated barley genotypes for several morphological and agronomical traits. The Hordeum vulgare ssp. spontaneum C. Koch accessions were grouped into six populations according to the longitude, latitude, altitude, and rainfall zone of the collection site, and the cultivated barley in one population. The evaluation was conducted during the 2004-2005 growing season under field conditions in three locations in Jordan; namely, Khanasri, Ramtha, and Maru with 123.0, 222.9, and 429.2 mm annual rainfall, respectively. We used an unreplicated design with two systematic checks (the cultivars Rum and Mu'ta) each repeated 15 times. The results showed the existence of high variability among the Hordeum vulgare ssp. spontaneum C. Koch accessions for most of the traits, especially for plant height, tiller number, days to heading, days to anthesis, peduncle length, and peduncle extrusion. Plant height, earliness, peduncle length, and peduncle extrusion were found to be adaptive traits under drought conditions and several superior genotypes for each trait were identified. Genetic variation within population was much higher than between populations. Clustering of populations was according to their ecological geographical pattern.
机译：野生大麦，大麦L. ssp。自发性大麦（C. Koch），是栽培大麦的祖先。几乎一致地，多样性的中心被认为是在近东的肥沃新月，那里的野生大麦在各种环境和气候条件下生长。预计约旦野生大麦将包含对改善栽培大麦有用的基因，尤其是与耐旱性相关的基因。这项研究评估了从约旦不同地区收集的103种野生大麦种质，以及29种栽培的大麦基因型的几种形态和农艺性状。大麦属植物。根据收集地点的经度，纬度，高度和降雨区以及一个大麦中的栽培大麦，将自发C. Koch的种质分为六个种群。这项评估是在2004-2005年生长期期间在约旦三个地点的田间条件下进行的。分别是Khanasri，Ramtha和Maru，年降雨量分别为123.0、222.9和429.2 mm。我们使用了无重复设计，并进行了两次系统检查（品种Rum和Mu'ta），每次重复15次。结果表明，大麦属植物之间存在高度变异性。自发C. Koch的大部分性状，特别是株高，分er数，抽穗天数，花期天数，花序长和花序膨大。在干旱条件下，发现株高，早熟，花序长和花序挤压是适应性状，并确定了每种性状的几种优良基因型。种群内部的遗传变异远高于种群之间的遗传变异。人口聚集是根据其生态地理格局。

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