Pioneer Hi-Bred Launches Breakthrough Technology That Significantly Increases Soybean Yields

Proprietary innovation increases yields up to 12 percent

DES MOINES, Iowa, Sept. 26, 2007 - Pioneer Hi-Bred, a DuPont business, announces it is commercializing soybean varieties developed using a technology that increases yields by as much as 12 percent per acre. Pioneer is introducing five varieties with the technology for 2008 planting, pending wide-area product advancement trial results.

This announcement officially launches one of the company's three soybean yield traits from its pipeline to commercial status. It will be commercially known as Accelerated Yield TechnologyTM (AYTTM). AYTTM uses proprietary molecular breeding techniques to rapidly scan and identify genes that increase yield then incorporate them into elite soybean genetics.

"AYTTM allows us to take a giant step forward on our promise to deliver industry-leading improvements in soybeans. Our customers are seeing dramatic increases in PioneerĀ® soybean variety yields that have never been seen in such a short period of time," says William S. Niebur, vice president DuPont Crop Genetics Research and Development. "This technology embodies our business philosophy to increase the productivity and profitability of our customers to help them meet the rising demand for food, feed, fuel and materials."

Until now, molecular breeding techniques used by the seed industry have only produced single-gene defensive traits in commercial varieties. There are multiple genes in complex networks that determine the final yield level achieved. AYTTM builds on Pioneer industry-leading molecular breeding techniques by allowing researchers to simultaneously select multiple genes to significantly boost yields. AYTTM is not transgenic, so soybeans developed from this process are not subject to additional regulatory approvals.

The first AYTTM varieties are higher yielding versions of the newest Pioneer elite soybean genetics. Pending final trial results this fall, Pioneer hopes to introduce an AYTTM version of PioneerĀ® brand 94M80, which set the world record soybean yield of 139 bushels per acre in 2006. New unique genetics also are being developed using AYTTM and other molecular breeding techniques.

"Full implementation of AYTTM combined with molecular breeding technologies will enable Pioneer to make a new class of soybeans that has unprecedented yield potential relative to anything we have ever seen," Niebur says. "These technologies allow us to incorporate a complete package of offensive and defensive characteristics that could make 100-plus bushel soybean yields a common occurrence in the very near future."

Pioneer Hi-Bred, a DuPont business, is the world's leading source of customized solutions for farmers, livestock producers and grain and oilseed processors. With headquarters in Des Moines, Iowa, Pioneer provides access to advanced plant genetics in nearly 70 countries. DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

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