Tratamento fungicida em semente de milho super-doce

Abstract

The objective of this research was to evaluate the effect of fungicide treatment on the physiological potential and seed health of DO-04 super sweet corn hybrid seeds classified by differences in shape. For this, pure seeds of the DO-04 hybrid harvested in 2004 were used. A completely random design was used in a 2 x 3 x 4 factorial scheme, i.e. two seed shape classes (flat and round), three seed lots and four fungicide treatments (untreated seeds, Fludioxonil, Captan TS + Thiabendazol, and Captan TS + Thiram PS). After the fungicide treatments, germination, vigor (germination speed, cold test, accelerated aging) and seed health tests were performed. Results showed that germination and vigor of round DO-04 hybrid super sweet corn seeds were higher than the flat ones. In addition, combinations of Captan + Thiabendazol and Captan + Thiram were efficient to control F. moniliforme, Cephalosporium sp. and Penicillium sp and were beneficial to seed vigor.