Fig. 3 Petiole ureide concentration (A.) and leaf ureide concentration (B.) for Jackson and KS4895 during a drying cycle for a field experiment in 1997. Except where indicated, data were averaged over foliar manganese treatments (n.s.). Within a day, * indicates that ureide concentrations differed significantly between cultivars as determined by an F-test (P 0.05). LSD bar in panel A is for comparisons of means on Day 4

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