Fig. 2From: Estimating the impact on maize production by the weed Parthenium hysterophorus in PakistanYield loss of maize (Zea mays ‘CORTEVA 30K08’) as affected by various densities of Parthenium hysterophorus. Symbols show means from ten replications, five in 2019 and five in 2020 (Data were pooled across both years). The blue line represents the best fit a quadratic model, and grey shading represents 95% confidence intervals around the fitBack to article page