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Die Voortplantingsbiologie van Digitaria eriantha
Dissertation (MSc (Botany))--University of Pretoria, 1987.
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| Format: | Thesis |
| Language: | Afrikaans |
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University of Pretoria
2024
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| _version_ | 1867613481116631040 |
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| access_status_str | Open Access |
| author2 | Coetzer, Louw A. |
| author_browse | Coetzer, Louw A. |
| author_facet | Coetzer, Louw A. |
| collection | Thesis |
| dc_rights_str_mv | © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Botany))--University of Pretoria, 1987. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99599 |
| institution | University of Pretoria (South Africa) |
| language | afr |
| last_indexed | 2026-06-10T12:36:49.885Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/99599 Die Voortplantingsbiologie van Digitaria eriantha Coetzer, Louw A. Robbertse, P.J. (Petrus Johannes), 1932- Joubert, Marthinus Gerhadus Voortplantingsbiologie Digitaria eriantha UCTD Dissertation (MSc (Botany))--University of Pretoria, 1987. The purpose of this dissertation was to determine the reasons for the low seed set in D. eriantha. Aspects such as flower anthesis, pollen morphology, pollination, pollen viability, the morphology of the embryo sacs and seed set, were examined. While a high percentage of aborted pollen was found in the anthers, few problems exist in regard to pollen germination and viability. The reason for the low seed set in this species is probably to be found in the high percentage of sterile embryo sacs occurring here. This indicates a strong possibility of meiotic abnormality which may be related to the high percentage of aborted pollen in the anthers. On the strength of the 4-nucleate embryo sac found, it is also probable that facultative apomixis occurs in D. eriantha. An improved seed set could possibly be achieved by the use of clone selection and inbreeding. Plant Science MSc (Botany) 2024-11-27T09:16:25Z 2024-11-27T09:16:25Z 21/11/13 1987 Dissertation http://hdl.handle.net/2263/99599 afr © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Voortplantingsbiologie Digitaria eriantha UCTD Die Voortplantingsbiologie van Digitaria eriantha |
| title | Die Voortplantingsbiologie van Digitaria eriantha |
| title_full | Die Voortplantingsbiologie van Digitaria eriantha |
| title_fullStr | Die Voortplantingsbiologie van Digitaria eriantha |
| title_full_unstemmed | Die Voortplantingsbiologie van Digitaria eriantha |
| title_short | Die Voortplantingsbiologie van Digitaria eriantha |
| title_sort | die voortplantingsbiologie van digitaria eriantha |
| topic | Voortplantingsbiologie Digitaria eriantha UCTD |
| url | http://hdl.handle.net/2263/99599 |