Seed production, viability and germination of Citrullus Lanatus at the King Nehale conservancy select="/dri:document/dri:meta/dri:pageMeta/dri:metadata[@element='title']/node()"/>

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Show simple item record Kaura, Uazamo en_US 2014-02-07T14:08:06Z 2014-02-07T14:08:06Z 2009 en_US
dc.description.abstract Abstract provided by author en_US
dc.description.abstract Citrullus lanatus (Thumb.) Matsumura & Nakai seeds are valued for their oil for both household consumption and in the cosmetic and pharmaceutical industry. The immense monetary value offered for its seeds has resulted in over-exploitation of C. lanatus. This study investigated the ethnobotany, seed production, germination and viability of C. lanatus under controlled greenhouse and natural field conditions. An ethnobotanical study was carried out were resource users and key informants were interviewed on the plant resource utilization. Seed collection and germination trials of C. lanatus seeds took place at the University of Namibia main campus and the King Nehale Conservancy (KNC). Harvested fruits were collected, weighted and measured. Tetrafolium was used to test seed viability. Seed production was estimated by quantifying the number of seeds in randomly selected fruits from the wild. Seeds were then exposed to various treatments methods including scarification, treatment with essential microbes (EM) and water imbibition, and some kept as controls. Germination rates were expressed as the percentage of seeds germinated within 21 days after sowing the seeds. The data were subjected to statistical treatment using ANOVA, Kruskal-Wallis and T-tests en_US
dc.description.abstract Ethnographic studies revealed that villagers are keen to intercrop C. lanatus with local traditional crops to increase the seed yield required for commercial trade. Lack of awareness with regard to the decrease of melon seeds or fruits being harvested is a major threat to the survival of this species in the wild. There was no significant difference in the germination rate (p 0.05) among seeds obtained from fruits of different sizes. Smaller fruits do not necessarily contain immature seeds. In addition, seed weight did not influence the germination success of the seeds. Pre-chilling of seeds and the exposure of the seeds to H2SO4 and Essential Microorganisms improved the germination success of the seeds. Mechanical scarification did not improve the germination of the seeds of C. lanatus. Seeds obtained from herbivore manure attained less than 50 germination en_US
dc.description.abstract It is recommended that long-term monitoring is needed to assess the harvesting regimes and the recruitment of C. lanatus in the wild. Future investigations should be carried out on the seed yields and the oil yield of the melon. To gain better scientific knowledge, treatments should be extended to a greater variety of germination stimulators and inhibitors such as Gibberellic and Abscisic Acid en_US
dc.format.extent vi, 134 p en_US
dc.language.iso eng en_US
dc.source.uri en_US
dc.source.uri en_US
dc.subject Melons en_US
dc.subject Watermelons en_US
dc.title Seed production, viability and germination of Citrullus Lanatus at the King Nehale conservancy en_US
dc.type Thesis en_US
dc.identifier.isis F004-199299999999999 en_US Windhoek en_US Namibia en_US University of Namibia en_US Masters of Science in Biodiversity Management and Research en_US
dc.description.status en_US
dc.masterFileNumber 3536 en_US

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