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Title:   Author  item
                                            Gesch, Russell

                                                         - *Russ*item
                                            Allen, Brettitem
                                            Archer, Daviditem
                                            Banuelos, Garyitem
                                            Behrman, Kathrineitem
                                            BROWN, J - University Of Idahoitem
                                            Hatfield, Jerryitem
                                            Jabro, Jalal

                                                         - *Jay*item
                                            Kiniry, Jamesitem
                                            Long, Danielitem
                                            Vigil, Merle
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 9/19/2014
                                    Publication  Date: 9/19/2014
                                    Citation: Gesch, R.W., Allen, B.L., Archer, D.W., Banuelos, G.S., Behrman, K.D., Brown, J., Hatfield, J.L., Jabro, J.D., Kiniry, J.R., Long, D.S., Vigil, M.F. 2014. Agronomic comparison of several brassica species in the U.S. Corn Belt as feedstock for hydrotreated jet fuel [abstract]. In: Miller, T., Alexopoulou, E. and Berti, M.T., editors. International Conference in Industrial Crops and 26th Annual Meeting of the Association for the Advancement of Industrial Crops (AAIC). Program and Abstracts. September 13-19, 2014, Athens, Greece.Interpretive Summary:
                                Technical Abstract: Through a patented process developed in the U.S., hydrotreated renewable jet fuel (HRJ) derived from plant oils has been commercially demonstrated. However, full-scale production has not yet come to fruition because HRJ is not economically competitive with petroleum-based fuels due to high feedstock cost. Identifying suitable feedstock while developing crops attractive to farmers will be key to producing affordable HRJ and creating a dependable alternative fuel supply. Several oilseed species in the Brassicaceae family have shown potential for HRJ feedstock, but selecting genotypes agronomically and economically best suited for a given region will likely differ with environment and current cropping systems.

The primary objectives of this study were to evaluate and compare agronomic characteristics of 18 Brassica genotypes (6 winter and 12 spring types) representing six different species (Brassica napus, B. rapa, B. juncea, B. carinata, Sinapis alba, and Camelina sativa) and identify environmental factors most influencing their growth and oil production. Results presented are from a study conducted in west central Minnesota, U.S. in 2013 on a Barnes loam soil using a randomized complete block design. This is part of a larger project focused on evaluating the same set of oilseeds across nine locations spanning several different ecoregions in the U.S.
	
Despite late emergence due to drought, camelina (cv. Joelle) was the only autumn-sown winter type in the study that survived the harsh Minnesota winter. It formed good stands and yielded about 1,000 kg ha-1 of seed. The range of seed yield for the 12 spring-sown crops was from 1,000 to 3,700 kg ha-1 with a range in oil yield of 348 to 1,909 L ha-1. Plant lodging was a serious issue that may have affected yields and it varied widely among genotypes. Cultivars of B. napus and B. carinata produced the greatest seed and oil yields, although B. carinata was the latest maturing species in the study and had one of the lowest harvest indices. Only minor incidences of pest damage arose during the study and this was confined to certain species and cultivars.

For any given ecoregion, striking a balance among crop yield, agricultural input cost, and the best choice of species and cultivar for a particular cropping system will be important for providing a reliable and affordable feedstock for HRJ.


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