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Published in Crop Sci 11:763-765 (1971)
© 1971 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Genetic Suppression of Shoot-trichomes in Pearl Millet, Pennisetum typhoides1

Jerrel B. Powell and Glenn W. Burton2

A new mutation in pearl millet, Pennisetum typhoides (Burm.) Stapf and C. E. Hubb that suppresses virtually all shoot-epidermis trichomes is described. Hairs on blade and sheath, barbs along leaf margins, short hairs and claws on veins of upper and lower leaf surface, cilia on ligules, hairs on nodes, wooly hairs below base of panicle, rachilla hairs, and scabrous and pennate properties of bristles are suppressed. The plumose stigmas are modified into fork-like stylar branches by the gene. Hair tufts at the apex of anthers, which have taxonomic significance, are absent. The trait is recessive and is inherited as a single gene pair.

Key Words: Plant hairlessness • Smooth leaf • Stigma-mutant millet • Anther-mutant millet • Leaf hairs • Glabrous leaf

1 Cooperative investigations of the Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, and the University of Georgia, College of Agriculture Experiment Stations, Coastal Plain Station, Tifton, Ga. This work was supported in part by the US Atomic Energy Commission Contract No. AT (40-1) 2976. Journal Series Paper No. 1039, University of Georgia, College of Agriculture Experiment Stations.

2 Research Geneticists, Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, and the University of Georgia, College of Agriculture Experiment Stations, Coastal Plain Station, Tifton, Ga.

Received for publication April 12, 1971.




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