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Rubisco content expressed per unit leaf area (A) and per unit Chl (B). C, Ratio of Chl a to b. D, Chl content per unit leaf area of leaves according to canopy position for NPT variety IR65598-112-2. Measurements were made at the FL, and the next three leaves (2L, 3L, and 4L). Means ± se, n = 5 to 8 (individual plants).
