Abstract Screening new alternative vegetable oil sources as biodiesel feedstocks has attracted worldwide attention as world oil reserves decline and environmental concerns increase. Blessed thistle (Cnicus benedictus L.) has recently been identified as a multipurpose crop with optimal economic yield in poor soils. Blessed thistle was seeded into three different site soil conditions (site 1: silt clay loam, site 2: sandy loam, site 3: saline sandy loam) in eastern North Dakota, USA to evaluate agronomic performance and seed properties as well as biodiesel potential. The highest biomass and plant heights were obtained from the sandy loam soil, while plants grown in saline sandy loam soil had similar seed and oil yield, and similar oil content as plants grown in other site soil conditions. Biodiesel obtained from blessed thistle oil in the saline site was an excellent substitute for fossil fuels. The saline soil did not influence the blessed thistle oil yield; however, the saline soil did affect the fatty acid composition and biodiesel properties with some improvement in biodiesel quality. Results showed that blessed thistle was a promising species for biodiesel feedstock, especially for marginal soils such as the saline soil conditions in North Dakota.

中文翻译：

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有福蓟是美国北达科他州边缘土地上有前途的物种：农艺生产力、石油特性和生物柴油潜力

摘要 随着世界石油储量下降和环境问题的增加，筛选新的替代植物油来源作为生物柴油原料已经引起了全世界的关注。有福蓟（Cnicus benedictus L.）最近被确定为在贫瘠土壤中具有最佳经济产量的多用途作物。在美国北达科他州东部的三个不同场地土壤条件下（场地 1：粉砂粘壤土，场地 2：砂壤土，场地 3：盐碱砂壤土）播种有福蓟，以评估农艺性能和种子特性以及生物柴油潜力。从沙壤土获得最高的生物量和植物高度，而在盐渍沙壤土中生长的植物与在其他土壤条件下生长的植物具有相似的种子和油产量以及相似的含油量。从盐碱地的受祝福的蓟油中获得的生物柴油是化石燃料的极好替代品。盐渍土不影响福蓟油产量；然而，盐渍土确实影响了脂肪酸组成和生物柴油的特性，并在一定程度上改善了生物柴油的质量。结果表明，有福蓟是一种很有前途的生物柴油原料物种，特别是对于边缘土壤，例如北达科他州的盐渍土壤条件。