For 2013, DuPont Pioneer is offering 42 new SCN varieties available to growers from late Group 0 to mid-late Group V maturities, says Don Schafer, DuPont Pioneer senior soybean marketing manager.
“SCN populations continue to build and move further north, east, west and south,” he says. “Each year we’re striving to provide more resistant varieties in every maturity zone. Not too long ago, South Dakota used to be non-cyst geography, but we’re now bringing SCN-resistant products to that marketplace as well, because SCN continue to move west into South Dakota. We’re even in the testing process for introducing a late Group 00 maturity for the northern Red River Valley in northern Minnesota and into Manitoba and northern Ontario.”
DuPont Pioneer offers three different sources of SCN resistance: PI 88788, Peking, and PI 437654 (the source from which Hartwig was derived), according to Schafer. “Recently, we have been significantly increasing commercially available varieties with Peking resistance and now have more varieties with this source of resistance than any of our competitors,” he says.
“By expanding our sources of resistance, we are trying to stay ahead of SCN race shifts,” Schafer continues. “Recently, we’ve been finding places in central Illinois, near Peoria, where PI 88788 resistance isn’t holding up. One of our new products for 2013 is a mid- to early-Group III variety (93Y25) with SCN resistance from Peking that will be helpful to combat the races that are prevalent in these areas.”
DuPont Pioneer is now moving Peking into both late Group II and Group III maturities, Schafer notes. “A number of our highest-performing products in the early maturity groups are now varieties with Peking resistant sources,” he says. “With new gene-marking technology, we’ve learned how to bring a product along faster without the yield penalties that we once had in the past.
“A majority of our soybean product, over 75% of the volume we sell, is an SCN-resistant variety,” Schafer says. “For 2013, we will also have a new soybean variety (95Y60) available with PI 437654 resistance for mid-Group V maturity zones and we have pre-commercial products in research testing for Group IV maturity zones.”
DuPont Pioneer is also very close to introducing aphid-resistant soybean varieties. “We are working on three different resistant sources (Rag1, Rag 2, Rag 3) and have pre-commercial products in testing,” Schafer says.
Bt traits for soybeans are also in the pipeline. “Bt soybean traits are being developed to control Lepidoptera insects and Hemiptera insects,” Schafer adds. “Our initial target marketplace for them is in Brazil and Argentina, with the southern United States as the secondary target market.”