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In comparisons between tetraploid and related diploid red clover (Trifolium pratense) strains, the tetraploids averaged higher in forage but lower in seed yield. Wide genetic variability among and within the tetraploid strains indicated a good possibility for progress in selection.
Key Words: Induced polyploidy Colchicine
2 Associate Professor in the Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul. The assistance of two graduate students, Joseph Neubauer and Doo K. Kim, is gratefully acknowledged.
Received for publication November 22, 1968.
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