Contribuição ao desenvolvimento de linhagens de soja com resistência a patógenos.

RESUMO: As doenças que ocorrem na soja são responsáveis por severas perdas para os produtores em todo o mundo. Para o controle das principais doenças, a maneira mais prática e econômica tem sido o uso da resistência genética. Objetivando um melhor uso do germoplasma de soja disponível, métodos de seleção de plantas com resistência a Meloidogyne javanica, Heterodera glycines, Diaporthe phaseolorum, Microsphaera dissusa, Fusairum solani, Cercospora sojina e ao vírus da necrose da haste são apresentados. As linhagens avaliadas foram obtidas dos cruzamentos BRS 133 x PI 595099 e Coodetec 201 x PI 595099. Informações adicionais sobre os patógenos abordados e duraçãodo ciclo e produtividade das linhagens avaliadas são também apresentadas. ABSTRACT: Soybean diseases have been responsible for severe losses to the farmers around the world. The most practical, clean and economic way to control plant diseases is through the use of genetic resistance. In order to make the most effective use of available germoplam, methods for selection of soybeans plants with resistance to Meloidogyne javanica, Heterodera glycines, Diaporthe phaseolorum, Microsphaera diffusa, Fusarium solani, Cercospora sojina and cowpea mild mottle virus are presented. Moreover, information about the pathogens, soybean maturity group and yield are also presented.bitstream/item/69809/1/Boletim-de-pesquisa-e-desenvolvimento-1.pd

Indicação da cultivar de soja BRS Raimunda para Goiás e Distrito Federal.

ABSTRACT: The soybean cultivar BRS Raimunda is a result a Group Work formed by researcher of Embrapa Cerardos in conjunction with Embrapa Soja, with significant finantial support of Cerrados Fundation. In term of genealogy BRS Raimunda originated of a cross between Braxton X BR93-31857 and it was developed by modified genealogical and method of plant breeding. In the final research tests for variety release to the farms, the cultivars BRS Raimunda was superior in terms of grain production than the cultivars tests such as M-SOY 8800, DM 339 and Uirapuru. BRS Raimunda is a late cultivar indicated to the Cerrado Biome of Goias State and Federal District. Besides the high productivity and stability, the cultivar presents also resistence to the root-knot such as Meloidogyne incognita and Meloidogyne javanica.bitstream/CPAC-2009/26194/1/comtec_106.pd