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Figure 1. Mean kernel weight (A and B) and weight of kernels located at the middle of the ear (C and D) as a function of post-flowering source/sink ratio quantified as plant leaf area duration per kernel (A and C) or plant weight gain per kernel (B and D). Symbols represent mean values of each pollination treatment of both pollinators (DK752 and 5MG). Lines indicate the models fitted to the data. For A: Kernel weight = 186.4 + 79.9 source/sink ratio (r2 = 0.80, n = 16, P < 0.001), for source/sink ratio < 1.54 m2 °Cd k–1, Kernel weight = 309.5 mg, for source/sink ratio 
1.54 m2 °Cd k–1. For B: Kernel weight = 163.6 + 0.42 source/sink ratio (r2 = 0.77, n = 16, P < 0.001), for source/sink ratio < 312 mg k–1, kernel weight = 295.6 mg, for source/sink ratio 312 mg k–1. For C: Kernel weight = 210.1 + 67.8 source/sink ratio (r2 = 0.56, n = 16, P < 0.001), for source/sink ratio < 1.37 m2 °Cd k–1, kernel weight = 302.9 mg, for source/sink ratio 1.37 m2 °Cd k–1. For D: Kernel weight = 201.5 + 0.29 source/sink ratio (r2 = 0.62, n = 16, P < 0.001), for source/sink ratio < 348.6 mg k–1, kernel weight = 302.9 mg, for source/sink ratio 348.6 mg k–1.
