Contribuição ao estudo do «vermelhão» do algodoeiro (Gossipium herbaceum)
During the years 1948, 1949 and 1951 a disease occurred in the cotton crops of the state of S. Paulo Brazil (S. Am.), which caused a severe drop in yields. The abnormality was characterized by a typical reddish - purple color of the leaves, being by this reason, called "vermelhão", that is...
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Universidade de São Paulo
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