Yield and its components according to maize sowing times at offseason in the Northern of Mato Grosso state, Brazil

Abstract

The objective with this work was to evaluate yield and its components of maize single crosses of early cycle sowed at off-season in the Northern of Mato Grosso State. Then, six experiments were installed at 7-days intervals of sowing time in Sinop-MT. The experimental design was randomized complete blocks with four replications. The three single crosses used were: Maximus; Truck (Syn7316) and Status (Syn7205) and the sowing times was done at 7-days intervals from the base date 01/26/2014. The sowing times in Days After Base Date (DADB) were: 1 st – 01/26/2014(0 DADB); 2 nd - 02/02/2014(7 DADB); 3 rd - 02/09/2014(14 DADB); 4 th – 02/16/2014(21 DADB); 5 th – 02/23/2014(28 DADB) and 6 th – 03/02/2014(35 DADB). The traits analyzed were: dry matter, chlorophyll index, number of grain rows, number of grains pre row, mass of a thousand grain and grain yield. The off-season maize sowing times had effect in all the traits evaluated. There were interaction between single crosses and sowing times for the yield components number of grain rows, number of grains per row and mass of a thousand grain. The single crosses did not differ regarding yield.