Rust-resistant soybeans to debut in Brazil
Brazil is to have another tool to combat Asian soybean rust ( Phakopsora pachyrhizi). The Brazilian agricultural research corporation, the Embrapa, is to launch rust-resistant soybeans named BRSGO 7560 for the 2009-10 planting season. The product will be available in four states this year. Embrapa researcher Odilon Lemos advises the continued use of “other rust management practices”. The advantage of the new variety is its reduced exposure period to the disease, “completing the cycle in 110 days” rather than 150 days for “normal” soybean lines, he explains. The disease has appeared progressively later since farmers delayed planting until 90 days after harvest ( Agrow No 560, p 18), leading to fewer fungicide applications. The International Institute of Tropical Agriculture (Ibadan) is launching a rust-resistant variety called TGx 1835-10E in Nigeria.