Fig. 3. Change in the ratio of branch and main stem seed weight per plant at elevated (71 Pa, E) to that at ambient (40 Pa, A) carbon dioxide in relation to the increase in total seed yield for the entire plant. r² was significant for the change in branch seed weight per plant. AR = Arksoy; CN = CNS; DU = Dunfield; HA = Harrow; MA = Manchu; MN = Mandarin; MU = Mukden; S = S-100; WI = Williams. Data are from Run 3. Each point is the average of five plants

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