Fig. 3
From: A method to estimate plant density and plant spacing heterogeneity: application to wheat crops
The autocorrelation of the spacing among plants along the row direction illustrated with sowing density of 300 seeds m−2 observed over the Toulouse experiment. The lag is expressed as the number of plant spacing between 2 plants along the row direction (X axis). Lags 1–20 are presented. The upper and lower horizontal line represent the 95% confidence interval around 0