Summary
Five spring wheat crosses were evaluated over a 6-year period using comparisons between F2 and F3 data and between near-isogenic F4 populations selected for flag leaf area. Nonsignificant r values for F2 vs. F3 flag leaf measurements may be due to the effect of environment on flag leaf area, but are probably also an indication of low heritability for this plant character. Near-isogenic populations selected on the basis of flag leaf area showed little difference in grain yield, an indication that other plant parts must be more influential in determining grain yield. Flag leaf area, by itself, appears not to be a good index to plant performance.
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Joint contribution of ARS/USDA and the Montana Agricultural Experiment Station. Published with approval of the Director of the Montana Agricultural Experiment Station as Paper No. 725. Journal Series. Use of data from Research Centers at Moccasin. Havre. Huntley, and Kalispell is gratefully acknowledged.
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Mcneal, F.H., Berg, M.A. Flag leaf area in five spring wheat crosses and the relationship to grain yield. Euphytica 26, 739–744 (1977). https://doi.org/10.1007/BF00021700
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DOI: https://doi.org/10.1007/BF00021700