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Table 2 Parameters of the fitted distributions

From: A method to estimate plant density and plant spacing heterogeneity: application to wheat crops

Sites Sowing density (seeds m−2) Cultivar Gamma Weibull
a b p value of Chi square test a b p value of Chi square test
Avignon 100 Apache 1.14 6.38 0.27 7.44 1.07 0.29
200 Apache 1.25 4.04 0.62 5.29 1.13 0.05
300 Apache 0.99 2.53 0.38 2.51 1.00 0.56
400 Apache 0.96 1.50 0.22 1.39 0.94 0.57
Toulouse 100 Apache 1.07 5.01 0.12 5.32 0.99 0.10
200 Apache 1.39 1.95 0.17 2.86 1.15 0.12
300 Apache 1.21 2.28 0.94 2.89 1.12 0.94
400 Apache 1.24 1.37 0.51 1.76 1.10 0.40
600 Apache 1.16 0.96 0.37 1.14 1.09 0.21
Grignon 150 Premio 1.12 3.37 0.70 3.85 1.06 0.68
150 Attlass 1.13 2.48 0.69 2.87 1.05 0.67
150 Flamenko 1.11 3.3 0.92 3.75 1.05 0.92
150 Midas 1.24 3.03 0.21 3.92 1.12 0.24
150 Koréli 1.15 2.89 0.24 3.48 1.15 0.18