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Published in Crop Sci 10:531-534 (1970)
© 1970 Crop Science Society of America
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Single Height-Gene Effects in Doubled Haploid Sorghum bicolor (L.) Moench1

K. F. Schertz2

A comparison of short and tall sorghum, Sorghum bicolor (L.) Moench, determined the effects on morphological and agronomic characteristics of a single gene for height. Short doubled haploids, recessive at four major height loci (4-dwarfs), were compared with tall mutant derivatives, recessive at three loci (3-dwarfs) and dominant at one locus. The short and tall plants differed in height, internode length, leaf-blade length, leaf-sheath length, panicle width, and grain weight. Differences in height and internode length are due to a single gene difference. The other differences are either a direct effect or an indirect effect of this gene.

Key Words: Grain sorghum • Internode length • Dwarf • Isogenic • Tall Mutant • Four-dwarf • Three-dwarf

1 Contribution from the Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture and Texas A&M University, Soil and Crop Sciences Department, College Station, Texas.

2 Geneticist, Crops Research Division, ARS-USDA, College Station, Texas.

Received for publication February 26, 1970.




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