Productivity of sweet corn and green corn genotypes according to harvest intervalsSweet corn is a vegetable crop with high added value basically intended for human consumption due to the flavor of the grains. Brazil has the potential to expand its production, but more studies are needed to support and tune high yields and product quality. The productivity and grain yield of hybrid sweet corn and green corn were evaluated according to harvest intervals. The experiment was carried out at the Experimental Research Station of Syngenta Seeds Ltda., in the city of Uberlândia, Minas Gerais state, Brazil. The experimental design was a randomized block in factorial 8x4, corresponding to six hybrids of sweet corn (SWC03, SWC04, SWC05, SWC06, SWC07 and SWC08), and two hybrids of green corn (SWC01 and SWC02) and four harvest intervals [26, 28, 30 and 32 days after flowering (DAF)], with three replications. Sweet and green corn could be harvested when the grains contain from 72 to 78% humidity (milky stage), which occurs between 20 to 28 DAF. The hybrids SWC04 and SWC08 presented the highest productivity of ears with straw, productivity of grains and yield when harvested at 30 DAF (24.38 and 22.18 t ha -1 ; 11.70 and 10.95 t ha -1 and 47.96 and 49.30%, respectively).
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