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eturn to table of

eturn to table of contents MANAGEMENT OF PIONEER ® BRAND PLENISH ® HIGH OLEIC SOYBEANS by Steve Butzen, Agronomy Information Consultant SUMMARY • Pioneer ® brand Plenish ®^ high oleic soybean developed by DuPont Pioneer is a key product innovation with the potential to take back soybean markets lost to alternative edible oils. • Plenish high oleic soybean varieties have demonstrated yields and agronomics comparable to commodity soybean varieties in five years of wide-scale field testing. • Extensive testing has shown that Plenish high oleic soybeans maintain a stable fatty acid profile across a range of environments even with significant weather stress. • Plenish high oleic soybean varieties were found to perform similarly to comparative soybean varieties when planted over a wide range of dates in both full-season and double-crop systems. • Selected Plenish high oleic soybean varieties responded to high-yield practices with a 16.1 bu/acre yield increase and oleic acid profiles similar to the nontreated check. • Plenish high oleic soybean varieties responded similarly to commodity soybean varieties when treated with herbicides or when manganese was applied. Oleic acid levels were similar across treatments. 110

eturn to table of contents INTRODUCTION Soybean oil is by far the most widely used edible oil in the United States (Figure 1). However, in the last decade, soybean oil has lost market share to other oils due to the transition away from partially hydrogenated oils, which are the primary dietary source of trans-fats, by the food industry. Commodity soybean oil requires a hydrogenation process to gain the stability and functionality necessary for many food applications, and this process elevates the trans-fat content of the oil. Consequently, about 12 million acres of soybean oil market share has been lost to substitutes, such as palm and canola oil, that are naturally more stable than commodity soy oil. U.S. Edible Vegetable Oil Consumption (%) Soy 57% Oil Soy Canola Corn Palm Coconut Other Figure 1. U.S. edible vegetable oil consumption, 2015.* Source: Economic Research Service, USDA. *Total usage: 34,699 million lbs (15.7 million metric tons). Market Share 57% 14% 11% 7% 3% 8% Plenish high oleic soybeans developed by DuPont Pioneer are a key product innovation with the potential to take back markets lost to alternative edible oils. The oil from Plenish high oleic soybeans has a fatty acid profile similar to olive oil with an abundance of heart-healthy monounsaturated oleic acid and a 20% reduction in saturated fats compared to traditional soybeans. Because of the high oleic acid content (approximately 75%) and low amount of polyunsaturated fats (typically less than 10%), the oil is extremely heat stable, resisting oxidative breakdown and reducing polymer formation. These desirable attributes make the oil ideal for deep frying and improve its shelf life in packaged food products. These same attributes are beneficial in industrial applications that require high heat and oxidative stability. Plenish ® high oleic soybeans were made using the simple approach of suppressing an enzyme in the oil biosynthetic pathway to modify the overall composition of the oil. This enzyme, omega 6 desaturase, ordinarily carries out the reaction of converting oleic acid to linoleic acid. By suppressing this enzyme through insertion of a soy-based gene, production of linoleic acid is greatly reduced, and oleic acid accumulates in the oil. Directing enzyme suppression to the seed only, such that other plant parts are not affected, further enhances the outcome of this approach. Plenish high oleic soybeans have been well-received by the industry, resulting in a doubling of acreage in each of the last few years. This rate of growth is expected to continue as large scale end users are able to convert their formulations as a result of the increased supply. The United Soybean Board and the industry estimate the long-term market potential for high oleic soybeans is 15 to 20 million acres. If realized, this would be the fourth largest row crop in the U.S. and would represent 40 to 50% of U.S. soybean crush capacity. As the number of growers and acres increases, more farmers can benefit from improved management practices associated with this new product. Primarily, growers may be interested in how traditional soybean management practices apply to Plenish high oleic soybeans. This article will discuss recent research results and the similarities or differences compared to managing commodity soybeans. YIELD OF PLENISH ® HIGH OLEIC SOYBEAN VARIET- IES VS. COMMODITY SOYBEAN VARIETIES Plenish high oleic soybean varieties are developed using Pioneer elite germplasm and cutting-edge breeding and development technologies. Plenish high oleic soybean varieties have demonstrated yields on par with Pioneer ® brand elite soybean varieties in 5 years of extensive field testing that included over 700 observations (Figures 2 to 4). Only products that have demonstrated yield parity or better and composition specifications within industry norms are brought to market. Yield (bu/acre) 70 60 50 40 30 20 10 0 Varieties: Locations: Plenish High Oleic Soybeans 54.1 53.7 55.4 57.3 2011 12 7 Observations: 64 2012 16 15 150 61.4 61.1 2013 14 11 142 Pioneer Brand Elite Soybeans 63.7 64.4 65.0 65.3 2014 14 10 100 2015 16 36 277 Figure 2. Yield of Plenish high oleic soybean varieties compared to Pioneer brand elite soybean varieties by year. Source: DuPont Pioneer research plot yield data, 723 observations in Indiana and Ohio. These products could stand on their own for their yield and agronomic performance even without a premium payment, and that will continue to be the benchmark for commercial release going forward. Yield (bu/acre) 70 60 50 40 30 20 10 0 Plenish High Oleic Soybeans Pioneer Brand Elite Soybeans Figure 3. Yield of Plenish high oleic soybean varieties and Pioneer brand elite soybean varieties. Source: DuPont Pioneer research plot yield data, 723 observations in Indiana and Ohio, 2011 to 2015, averaged across years. 111

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