Direct and Joint Effects of Genotype, Defoliation and Crop Density on the Yield of Three Inbred Maize Lines

The aim of this study was to observe direct and joint effects three factors (genotypes, ecological environmental conditions the applied crop density) on level defoliation intensity yield. Three inbred lines (G) maize (G1–L217RfC, G2–L335/99 G3–L76B004) were used in study. trials performed two years (Y) (Y1 = 2016 Y2 2017) locations (L) (L1 L2) under four year–location interaction (E1–E4) densities (D1 D2) (50,000 65,000 plants ha−1). Prior tasselling, following five treatments detasseling (T) applied: T1—control, no leaf removal only detasseling, T2–T5—removal tassels top leaves (from one leaves). had most pronounced effect yield reduction G1 (T1–Tn+1… T5), p < 0.05. variability expressed poor weather (E3 E4), while lower less favorable for application treatments. result lowest grain (896 kg/ha) G3 variant E3D1 T2 highest (11,389 E2D2 T1. smallest treatment kernel row number (KRN).