ABSTRACT uredospores/mL mineral oil (Soltrol). After inoculation, seedlings were kept in a growth chamber at 20°C ± 2, near 100% humidity, in the dark, for 20 hours. Fifteen days after… Click to show full abstract
ABSTRACT uredospores/mL mineral oil (Soltrol). After inoculation, seedlings were kept in a growth chamber at 20°C ± 2, near 100% humidity, in the dark, for 20 hours. Fifteen days after inoculation, the density of uredia/leaf was evaluated. The concentration of 40 x 10 3 uredospores/mL resulted in a disease intensity that allows safe differentiation between susceptible and resistant cultivars in the seedling stage, without causing leaf senescence due to high uredinium density. RESUMO A ferrugem da folha do trigo causada pelo fungo Puccinia triticina , pode causar danos de ate 62%. Esse trabalho objetivou testar o efeito de concentracoes de uredosporos no processo infeccioso de quatro racas fisiologicas. As racas MFJ-MN, MFT-MT 4002 S, TPT-HT e TDP-HT foram inoculadas, na primeira folha expandida no estadio de plântula, respectivamente nas cultivares Onix, Abalone, Morocco e Quartzo. Foram testadas as concentracoes de 0,0; 5 x 10 3 ; 10 x 10 3 ; 20 x 10 3 e 40 x 10 3 Turra, C.; Erlei M. Reis, E. M.; Barcellos, A. L. Efeito da densidade de uredosporos de racas de
Journal Title: Summa Phytopathologica
Year Published: 2017
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