Fig. 3. Relationship between leaf breadth of seedling leaves and leaf area for random families derived from a convergent cross population differing in vigor. Lines were grown in 10 m² field plots at Condobolin together with semidwarf check varieties Janz, Hartog, and Amery. Note that the Australian cultivars are amongst the lines with the lowest vigor. (Data adapted from Rebetzke and Richards, 1999.)

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