Uganda Forestry Resources and Institutions Center (UFRIC) Collections
http://hdl.handle.net/10570/197
2024-03-28T13:28:43ZBamboo regeneration and succession in Echuya
http://hdl.handle.net/10570/1544
Bamboo regeneration and succession in Echuya
Bananali Y., Banana,
Echuya was gazetted in 1939 as 'a Forest Reserve. At that time, the forest vegetation consisted of dense evergreen stands of Arundinaria alpina (bamboo) (Howard 1991). .Kingston (1968) report that in 1947the bamboo stems in Echuya were big tall and dense, and hardwood trees and shrubs were scattered in a few places. Botanical field trips conducted by Eggeling (1934), Watt (1956). Kingston (1968) and Davenport. Howard & Mathews (1996) recorded Arundinaria alpina as the dominant grass. Other conspicuous plants in the vegetation included Cassipourea malosana. Afircania volkenii, Dombeya spp. Hagenia abyssinia, Hypericum species, Nuxia congesta. Myrica salicifolia and Faurea salign. However, the present concern by forest ecologists, environmentalists and the local community is that the bamboo shrubs are losing ground to other vegetation types (Banana et a1. 1993). No previous studies have documented this ecological change and the major question answered by this study was, what are the factors leading to the current ecological changes in Echuya Forest Reserve?
National Stakeholder's Workshop to Review the sustainable Management of Non Wood Forest Products in Uganda Focussing on Bamboo and Rattan
2003-05-28T00:00:00ZBegomoviruses infecting cassava and their interaction with brown streak viruses in Kenya
http://hdl.handle.net/10570/7208
Begomoviruses infecting cassava and their interaction with brown streak viruses in Kenya
Muga, Brenda Akinyi
Cassava mosaic begomoviruses are known to occur together within the same host and have a
high rate of recombination. CMBs have also been reported to co-infect cassava with CBSVs,
resulting in enhanced symptom expression. Interaction of virus species within the same group
may result in recombination or synergism while interaction between the different groups may
result in synergism. This dissertation determined the diversity and level of co-infection of CMBs
in Kenya and also examined the nature of interaction of East African cassava mosaic virusUganda (a variant of EACMV: a CMB), with CBSVs. For the first objective, a survey was
conducted in the four major cassava growing regions of Kenya namely Eastern, Coastal, Nyanza
and Western. The study reported for the first time the occurrence of East African cassava mosaic
Cameroon virus (EACMCV) in all cassava growing regions and a high (82.96%) level of coinfection of all CMBs in Kenya. East African cassava mosaic Zanzibar virus (EACMZV) was
the most prevalent CMB in all cassava growing regions and had spread from the coastal region
where it previously occurred. For the second objective, two CMD resistant varieties and one
susceptible variety were used to study the interaction of East African cassava mosaic virusUganda (EACMV-Ug) with the CBSVs: Cassava brown streak virus (CBSV) and Ugandan
cassava brown streak virus (UCBSV). This study was conducted in a greenhouse at Jomo
Kenyatta University of Agriculture and Technology in Kenya. Quantitative RT-PCR and PCR
analysis were performed to compare viral titre in single and co-infection. In the susceptible
variety, Mucericeri, EACMV-Ug was higher when in co-infection with CBSV but lower when in
co-infection with UCBSV, compared to single infection. In CMD resistant variety, MM 96/5280,
the titre of EACMV-Ug at 3 mpi was raised significantly by both CBSV and UCBSV. For
CBSVs, the titre of UCBSV was lower at 3 mpi but higher at 6mpi when in co-infection in the
susceptible variety Mucericeri. EACMV-Ug increased the viral titre of CBSV in MH 99/7296.
Detection of a previously unreported CMB and the synergism of CMB in CMD resistant
varieties call for stringent diagnosis of cassava viruses and development of new sources of
resistance to CMD. The findings in this dissertation contribute to the knowledge gap on the
complex nature of virus interaction and will contribute to the long term goal of managing and
screening cassava viruses.
2018-11-01T00:00:00ZBusowe Nature Reserve and Kabunja Private Forest and their users
http://hdl.handle.net/10570/1548
Busowe Nature Reserve and Kabunja Private Forest and their users
Uganda Forestry Resources and Institutions Center (UFRIC)
UFRIC Research Team includes: Gombya-Ssembajjwe W., Banana J. A., Namaalwa J., Waiswa D., Sekindi S., Matovu S.
2003-08-01T00:00:00ZButto-Buvuma Forest Reserve site report: Third visit, 2005
http://hdl.handle.net/10570/1564
Butto-Buvuma Forest Reserve site report: Third visit, 2005
Uganda Forestry Resources and Institutions Center (UFRIC)
2009-02-24T00:00:00Z