Crop Science -- Echarte et al. 48 (2): 656 Figure IG3

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Figure 3. Leaf chlorophyll index (SPAD units) as a function of weeks from silking for an older (‘Pride 5’) and a newer (‘NK N25-J7’) maize (Zea mays L.) hybrid exposed to high (HN) and low (LN) N levels. Vertical bars represent ± SE and are not shown when smaller than the symbol size.