AVALIAÇÃO DA RESISTÊNCIA EM POPULAÇÃO F3 ORIUNDA DO CRUZAMENTO CNC-0434 X IPA-206 DE FEIJÃO-CAUPI AO MOSAICO SEVERO
2012
ERLEN KEILA CANDIDO E SILVA | ANA VERÔNICA SILVA DO NASCIMENTO | ALISSON ESDRAS COUTINHO | JOSÉ CARLOS DA COSTA | LUCIANE VILELA RESENDE
In the Northeastern part of Brazil, the mosaics caused by viruses, emerge as the most important diseases for the cowpea, thus becoming a limiting factor of production. Genetic resistance has been considered as the best alternative of controlling Cowpea severe mosaic virus. Thus, the aim was to evaluate the F3 population behavior developed for the resistance against different isolated CPSMV collected from different areas of cultivation. Leaf samples presenting cowpea mosaic symptoms were collected from plantations from the states of Pernambuco and Paraiba. There was inoculation on susceptible cultivars of cowpea kept in house vegetation. The isolates were also diagnosed by reactions RT-PCR using specific primers. Of the 185 F3 plants inoculated 183 plants were resistant to different isolates of CPSMV.
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