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.