Figure 2

(a) Photosynthetic rate averaged from V8 (eight fully expanded leaves) to R6 (maturity) and for N levels for the two genotypes (M37W and Carolight®). (b) Duration of photosynthesis (integral of area under the curve of photosynthetic rate vs time) from V8 to R6 for the two genotypes under N0 (0 kg ha−1 of N) and N200 (200 kg ha−1 of N) treatments. Data presented as means ± SD (n = 4).