Fig. 2. Rhizoma peanut leaf in vitro organic matter digestibility (IVOMD) [Harvest (H) 1 (): y = 704 + 0.421x, r² = 0.50, root mean square error (RMSE) = 11.4; Harvest 2: not significant, mean = 678 g kg^-1; Harvest 3 (•): y = 667 + 0.28x, r² = 0.33, RMSE = 10.8] and neutral detergent fiber (NDF) response to percentage of incident photosynthetic photon flux density (PPFD) for harvests in 1990 [Harvest 1 (): y = 343 + 0.98x - 0.013x², R² = 0.84, RMSE = 9.6; Harvest 2 (): 319 + 2.58x - 0.021x², R² = 0.66, RMSE = 9.4; Harvest 3: not significant, mean = 387 g kg^-1].

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