Total dry biomass and grain yield
At full grain maturity and after plants were fully dried, all aboveground biomass was harvested and weighed to determine total dry matter (TDM) for each plot. Grain was then threshed using Wintersteiger thresher apparatus. Grain was weighed to determine grain yield per plot (GY) and Harvest index (HI) was calculated as the ratio between GY and TDM.