Brassicaceae oilseed crops have proven potential as vegetable oil feedstock for biofuels and food uses. However, meeting a growing demand for vegetable oils for food and industrial uses will require identifying oilseed species that are best suited for various growing environments within a particular region. The objective of this study was to compare growth dynamics, seasonal water use (WU), seed yields, and water use efficiency (WUE) of canola (Brassica napus L.), camelina (Camelina sativa L.), and white mustard (Sinapis alba L.) to determine their suitability under three different environments within the northern Great Plains. Comparisons were made among these species over three growing seasons between 2013 and 2016 at Morris, MN; Mandan, ND; and Sidney, MT, situated along a strong precipitation gradient from east to west. Generally, growing season precipitation was similar at Morris and Mandan, but both were considerably greater than at Sidney. Seasonal WU was similar among these oilseed species at Morris and Mandan but was greatest for camelina at the drier Sidney environment. Canola seed yield was the greatest at Morris and had higher WUE than camelina and white mustard. At Mandan and Sidney, canola and camelina had similar seed yields and WUE, which were generally greater than white mustard. Under abundant moisture and low stress (e.g., Morris), seed yield per millimeter of water used could be maximized by growing canola, while in a drier more stressful environment like Sidney, seed yield per millimeter of water used could be maximized by growing camelina.

中文翻译：

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高产和低产环境下三种十字花科油料的水分利用及水分利用效率


十字花科油籽作物已被证明具有作为生物燃料和食品用途的植物油原料的潜力。然而，为了满足食品和工业用途植物油日益增长的需求，需要确定最适合特定地区各种生长环境的油籽品种。本研究的目的是比较油菜 (Brassica napus L.)、亚麻荠 (Camelina sativa L.) 和白芥菜 (Sinapis) 的生长动态、季节性用水 (WU)、种子产量和水分利用效率 (WUE) alba L.）以确定它们在北部大平原三种不同环境下的适用性。在 2013 年至 2016 年明尼苏达州莫里斯的三个生长季节对这些物种进行了比较；北达科他州曼丹；蒙大拿州的悉尼，位于从东到西的强降水梯度上。一般来说，莫里斯和曼丹的生长季降水量相似，但都比悉尼多得多。莫里斯和曼丹的这些油籽物种的季节性 WU 相似，但在干燥的悉尼环境中，亚麻荠的季节性 WU 最大。莫里斯的双低油菜籽产量最高，其 WUE 高于亚麻荠和白芥菜。在曼丹和悉尼，油菜籽和亚麻荠的种子产量和水分利用效率相似，通常高于白芥菜。在水分充足和压力较低的情况下（例如莫里斯），通过种植双低油菜籽可以最大限度地提高每毫米用水量的种子产量，而在像悉尼这样干燥、压力更大的环境中，可以通过种植亚麻荠来最大限度地提高每毫米用水量的种子产量。