Backcross variability for grain yield in oat species crosses (Avena sativa L. x A. sterilis L.) |
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| Authors: | P K Lawrence K J Frey |
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| Institution: | (1) Department of Agronomy, Iowa State University of Science and Technology, 50010 Ames, Iowa, USA;(2) Present address: ICRISAT, 1-11-256 Begumpet, 500016, A.P. Hyderabad, India |
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| Abstract: | Summary
Avena sterilis introductions from the Middle East were useful sources of genes for improving the grain yield of adapted A. sativa cultivars for midwestern US. Introgression of genes from A. sterilis materials into A. sativa oat breeding populations was readily accomplished through a backcrossing procedure. Backcrossing successfully accomplished the recombination required to introgress complexly inherited traits. The BC1F2, BC2F2, BC3F2, and BC4F2 generations appeared to be best for selecting high-yielding transgressive segregates from the A. sativa x A. sterilis crosses.Journal Paper No. J-7919 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa 50010. Project No. 1752. |
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