Why no tetraploid cultivar of foxtail millet? |
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| Authors: | Adam Ahanchede Simone Poirier-Hamon Henri Darmency |
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| Institution: | (1) Département de Productions Végétales, Faculté des Sciences Agronomiques, Université Nationale du Bénin, 04, Cotonou;(2) Centre National de la Recherche Scientifique, Gif sur Yvette, France;(3) Unité de Malherbologie et Agronomie, Institut National de la Recherche Agronomique, Dijon, 21065, France (e-mail |
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| Abstract: | Autotetraploid material was induced by colchicine treatment of a pure line of foxtail millet and an interspecific hybrid between foxtail millet and giant green foxtail. Compared with diploid material, tetraploids were smaller, flowered later, and had a two-fold reduced fertility (number of grain per cm of spike). Grain weight increased by 20% with polyploidy, but total grain yield decreased by 46%. This work illustrates the difficulty of breeding polyploid lines of foxtail millet that are of agronomic use. |
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| Keywords: | Setaria italica grain weight plant breeding tetraploids |
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