The Economic Impact of Diversifying the Genetic Resistance to Leaf Rust Disease in Modern Bread Wheats

摘要: The economic importance of the rust disease wheat is without question. rusts are major historical diseases and developing genetic resistance to them has been an objective plant breeding programs since turn this century (e.g., Howard Howard, 1909; Lupton, 1987; Macindoe Brown, 1968).1 Periodic epidemics were common in most decades century, although manipulation genes over last 40 years resulted more stable patterns (Singh Dubin, 1997). Genetic resistance, rather than use fungicides, remains principal means controlling rusts. This especially true wheat-producing countries world, where costs outbreaks relatively high.