Average and maximum yield benefit from each year from the optimal dose rate plotted against rainfall during the growing season and during the grain filling period. The effects of DMNB-T6P on yield stimulation (yield potential reflected in maximum yield stimulation achieved data point) and the average stimulation were essentially independent of rainfall amount and timing but more strongly affected by timing of DMNB-T6P application (10 DAA, blue, versus 16 DAA, red). F statistics for treatment, genotype, genotype:treatment, respectively, are as follows: 2018: 12.1, 1.83, 0.71; 2020: 3.07, 0.33, 1.68; 2021: 3.23, 11.73, 1.47; 2022: 4.42, 2.57, 1.56, with the corresponding degrees of freedom being 2018: 2, 2, 4; 2020: 2, 2, 4; 2021: 2, 3, 6; 2022 2, 3, 6. df, degrees of freedom; ha, hectare.
