Kirby, J.S. (2013) Manifestations of Heterosis in Grain Sorghum. PhD thesis, Lowa State University of Science and Technology.
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Abstract
The phenomenon of heterosis or hybrld vigor is of much interest to plant breeders, from both an academic and a practical point of view. The utilization of heterosis in various crops throughout the world has tremendously increased the production of hum* food and livestock feed. Probably the classic example of changes that can be brought about through the discovery, acceptance and utilization of the phenomenon of heterosis is the story of hybrid corn. The demonstration of inbreeding depression and the restored or increased vigor obtained upon crossing of the inbred lines is quite vivid in the cross-pollimted crop of corn. Inbreeding depression in self-pollinated crops is minlmal since inbreeding is the normal method of reproduction. Nevertheless, heterosis is evldent in many hybrids of self-p~lllnated plants and the primary factor limiting commercial utilization of hybrlds in these species is an economical method of producing the hybrid seed.....
| Item Type: | Thesis (PhD) |
|---|---|
| Author Affiliation: | Lowa State University of Science and Technology |
| Subjects: | Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 06 Jul 2013 07:22 |
| Last Modified: | 06 Jul 2013 07:22 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10927 |
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