Camelina Seed Yield and Fatty Acids as Influenced by Genotype and Environment

• Published in: Agronomy journal Vol. 109; no. 3; pp. 947 - 956
• Main Authors: Obour, Augustine K., Obeng, Eric, Mohammed, Yesuf A., Ciampitti, Ignacio A., Durrett, Timothy P., Aznar‐Moreno, Jose A., Chen, Chengci
• Format: Journal Article
• Language: English
• Published: United States The American Society of Agronomy, Inc 01.05.2017; Alliance of Crop, Soil, and Environmental Science Societies
• Subjects: Antilocapra americana; application timing; arid lands; Camelina sativa; cultivars; ENVIRONMENTAL SCIENCES; fallow; fatty acid composition; genotype; Great Plains region; growing season; Kansas; linolenic acid; lipid content; monounsaturated fatty acids; oilseed crops; production technology; saturated fatty acids; seed yield; spring; streams; temperature; Great Plains region; Kansas
• ISSN: 0002-1962; 1435-0645
• DOI: 10.2134/agronj2016.05.0256

Core Ideas Genotype × environment affected camelina seed yield, oil and constituent fatty acids. Blaine Creek produced the greatest seed among the camelina genotypes studied. Camelina grown at Hays, KS, had less yields and oil content compared to Moccasin, MT. Camelina at Moccasin, MT had greater linolenic acid content compared to Hays, KS. Camelina (Camelina sativa L. Crantz) is an alternative oilseed crop with potential for fallow replacement in dryland cereal‐based crop production systems in the semiarid Great Plains. The interaction between genotype and environment was investigated on camelina seed yield, oil content, and fatty acid composition across two locations in the U.S. Great Plains. Treatments were three spring camelina genotypes (cultivars Blaine Creek, Pronghorn, and Shoshone), three growing seasons (2013, 2014, and 2015) and two locations (at Hays, KS, and Moccasin, MT). Results showed camelina grown at Hays yielded 54% less than that at Moccasin. Blaine Creek yielded 17 and 42% more than Pronghorn and Shoshone at Hays but yields were not different among genotypes at Moccasin. Oil content ranged from 262 g kg−1 at Hays to 359 g kg−1 at Moccasin. The proportion of polyunsaturated fatty acids (PUFAs) ranged from 51% at Hays to 55% at Moccasin, whereas monounsaturated fatty acid (MUFA) and saturated fatty acid (SFA) contents were greater at Hays. The linolenic acid content ranged from 26% when Pronghorn was planted at Hays to 35% when planted at Moccasin. In general, the variations in seed yield and fatty acid profile corresponded well with growing season precipitation and temperatures at each environment.