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Fig. 3 Leaf development of Tonic and Lancelot plantain and Puna, La Certa, and Forage Feast chicory in field plots at Rock Springs, PA plotted against days after planting in spring (May to July; 3a), fall (September to November; 3b) 1997, and spring 1999 (May to July; 3c). Each data point is the mean of five replications. Regression lines and equations in spring and fall 1997 apply to all data. RMSE = root mean square error. Individual regression equations for spring 1999 were: Lancelot plantain,

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