Divergent Selection for Seedling Tiller Number in Big Bluestem and Switchgrass
Alexander J. Smart*,a,
Kenneth P. Vogelb,
Lowell E. Moserc and
Walter W. Stroupd
a South Dakota State Univ., Dep. of Animal and Range Sci., Box 2170, Brookings, SD, 57007
b USDA-ARS, 344 Keim Hall, P.O. Box 830937, Lincoln, NE 68583
c Agronomy and Horticulture Dep., 279 Plant Sci., P.O. Box 830915, Lincoln, NE 68583
d Biometry Dep., 103 Miller Hall, Univ. of Nebraska, Lincoln, NE 68583

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Fig. 1. Estimated frequency distribution of number of tillers per plant averaged across two experiments of big bluestem populations developed by two cycles of divergent selection for seedling tiller number while selecting for high shoot weight 6 to 8 wk after planting.
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Fig. 2. Estimated frequency distribution of number of tillers per plant averaged across two experiments of switchgrass populations developed by two cycles of divergent selection for seedling tiller number while selecting for high shoot weight 6 to 8 wk after planting.
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Copyright © 2003 by the Crop Science Society of America.