2 documents found, page 1 of 1
Progress of Asian soybean rust and airborne urediniospores of Phakopsora pachyr...
Nascimento,Jefferson Fernandes do; Vida,João Batista; Tessmann,Dauri José; Zambolim,Laércio; Vieira,Rafael Augusto; Oliveira,Ricardo Ribeiro deAsian soybean rust, caused by the fungus Phakopsora pachyrhizi, was reported at epidemic levels in 2003/2004 and is the main soybean disease in Brazil. The aim of this study was to investigate the spread of Asian soybean rust and to quantify airborne urediniospores in the region of Campo Mourão, Paraná State, Brazil. Three experiments were conducted under field conditions during the 2007/08 and 2008/09 crop sea...
Cotton resistance to ramulose and variability of Colletotrichum gossypii f. sp....
Nascimento,Jefferson Fernandes do; Zambolim,Laércio; Vale,Francisco Xavier Ribeiro do; Berger,Paulo Geraldo; Cecon,Paulo RobertoFour cultivars and 21 lines of cotton were evaluated for resistance to ramulose (Colletotrichum gossypii f. sp. cephalosporioides) in a field where the disease is endemic. The seeds of each genotype were planted in 5 x 5 m plots with three replications. The lines CNPA 94-101 and 'CNPA Precoce 2'were used as standard susceptible and resistant references, respectively. The disease incidence (DI) was calculated fr...