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Fig. 5. Water use efficiency (WUE) [grain yield/(crop transpiration + evaporation from soil surface] as a function of yield for narrow-leafed lupin. The diamond symbols are from the 1998 Exp. 1, conducted at Moro and Pendleton. All other symbols are from the 2000 Exp. 3. Circles are for the 21 March planting date, squares for the 31 March planting date, and triangles for the 17 April seeding date. CH, DA, ME, YO, and KA represent the cultivars Chittick, Danja, Merrit, Yorrel, and Kalya, respectively.
