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Diversity and pasture potential of legumes indigenous to southern Africa
Thesis (PhD)--University of Pretoria, 2013.
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| Language: | English |
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University of Pretoria
2014
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| _version_ | 1867613722146504704 |
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| access_status_str | Open Access |
| author2 | Van Wyk, Abraham Erasmus (Braam) |
| author_browse | Van Wyk, Abraham Erasmus (Braam) |
| author_facet | Van Wyk, Abraham Erasmus (Braam) |
| collection | Thesis |
| dc_rights_str_mv | © 2013 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 | Thesis (PhD)--University of Pretoria, 2013. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/40213 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:40:39.540Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| 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:2263/40213 Diversity and pasture potential of legumes indigenous to southern Africa Van Wyk, Abraham Erasmus (Braam) mtrytsman@arc.agric.za Trytsman, Marike Adaptation Biomes Bioregions Climate Fabaceae Fodder Genebank Leguminosae Plant genetic resources Tribes Soil UCTD Thesis (PhD)--University of Pretoria, 2013. This study records all known legume (Leguminosae/Fabaceae) species indigenous to South Africa, Lesotho and Swaziland to establish distribution patterns and optimum climatic and soil conditions for growth. The main purpose was to propose a list of legume species for further evaluation of their pasture potential. Collection data supplied by the National Herbarium (PRE) Computerised Information System were recorded to establish the distribution patterns of species based on the bioregions vegetation map. A total of 1 654 species are known to be indigenous, representing 24 tribes and 122 genera. The grouping of legume species into five main clusters and 16 Leguminochoria is ecologically described, with the highest legume species richness found in the Northern Mistbelt Forest. Key and diagnostic species are provided for each Leguminochorion. Soil pH and mean annual minimum temperature were found to be the main drivers for distinguishing between legume assemblages. The optimum climatic and soil conditions for growth are described as well as the available descriptive attributes for species recorded. Information on the range of tolerance of most species to abiotic factors is presented. Mean annual rainfall and soil pH are highly correlated with the distribution pattern of most species, followed by mean annual minimum temperature. Legume species adapted to a wide range of soil pH levels and low soil phosphorus levels are recorded. Existing data on the cultivation and grazing or browsing status of indigenous legumes were used to select 584 species found mainly in the Central Bushveld, Mopane and Lowveld Bioregions to be further evaluated for their pasture potential. Known characteristics were used to categorise species. Species contained in the tribe Phaseoleae are of special interest since it contains most of the genera with present-day agricultural value, i.e. Eriosema, Rhynchosia and Vigna species are listed as having high potential as pasture species. This study has shown that the descriptive and distribution data accumulated by botanists (notably taxonomists) could be of beneficial use in meeting agricultural objectives. Indigenous legumes are adapted to a wide range of soil and climatic conditions and represent a valuable but largely unexploited natural resource for pasture development and soil conservation practices. gm2014 Plant Science unrestricted 2014-06-17T13:01:46Z 2014-06-17T13:01:46Z 2014-04-09 2013 Thesis Trytsman, M 2013, Diversity and pasture potential of legumes indigenous to southern Africa, PhD thesis, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/40213> D14/4/116/gm http://hdl.handle.net/2263/40213 en © 2013 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 | Adaptation Biomes Bioregions Climate Fabaceae Fodder Genebank Leguminosae Plant genetic resources Tribes Soil UCTD Diversity and pasture potential of legumes indigenous to southern Africa |
| title | Diversity and pasture potential of legumes indigenous to southern Africa |
| title_full | Diversity and pasture potential of legumes indigenous to southern Africa |
| title_fullStr | Diversity and pasture potential of legumes indigenous to southern Africa |
| title_full_unstemmed | Diversity and pasture potential of legumes indigenous to southern Africa |
| title_short | Diversity and pasture potential of legumes indigenous to southern Africa |
| title_sort | diversity and pasture potential of legumes indigenous to southern africa |
| topic | Adaptation Biomes Bioregions Climate Fabaceae Fodder Genebank Leguminosae Plant genetic resources Tribes Soil UCTD |
| url | http://hdl.handle.net/2263/40213 |