dc.contributor.author | Atwongyeire, Osebart | |
dc.date.accessioned | 2019-11-08T09:49:14Z | |
dc.date.available | 2019-11-08T09:49:14Z | |
dc.date.issued | 2019-09 | |
dc.identifier.citation | Atwongyeire, O.(2019). A comparative study of water stress tolerance between Dioscorea Rutondata and Dioscorea Alata Yam Species. Unpublished undergraduate Thesis,Makerere University. | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12281/7030 | |
dc.description | A research project report submitted to the Department of Plant Sciences, Microbiology and Biotechnology in partial fulfillment of the requirements for the award of the Degree of Bachelor of Science of Biotechnology of Makerere University. | en_US |
dc.description.abstract | This study focused on comparing the water stress tolerance of two yam species of
D. rutondata the white and D. alata using tissue culture techniques with the aim of
screening for a more drought tolerant variety. Yam is important for food security as the mainstay for at least 60 million people and income generation. Given the vulnerability of yams to drought, swamps and wetlands would be ideal for sustained production of this crop yet these two habitats are disappearing drastically due to human activities, there is therefore a need to identify drought tolerant yam varieties which can be used to improve the drought tolerance traits of other varieties if the yam industry is to be sustained amidst the worrying wave of climatic.
The study which was conducted at Makerere University, department of microbiology plant
sciences and biotechnology in the tissue culture lab involved three experimental groups for
each species subjected to varying agar concentrations that is 7g, 11g and 15g with three
replicates in each. Generally, all the species were affected in their growth by high osmotic stress
induced by increasing agar concentrations.
At concentration 7g and 11g there was no significant difference in the survival and behavior
of the species, however at agar concentration 15g, the growth behavior as well survival of
species were significantly different with D. rutondata performing better than D. alata. The
findings of this study clearly indicate that at optimum growth conditions without stress, D alata
performs better than D rutondata in all dimensions while in very highly stressed conditions D.
rutondata performs significantly better than D. alata. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Makerere University | en_US |
dc.subject | water stress tolerance | en_US |
dc.subject | Dioscorea Rutondata | en_US |
dc.subject | Dioscorea Alata | en_US |
dc.subject | Yam Species | en_US |
dc.title | A comparative study of water stress tolerance between Dioscorea Rutondata and Dioscorea Alata Yam Species | en_US |
dc.type | Thesis | en_US |