Bio

PROF. WAITHAKA KIMANI

Personal Information

 

Prof. Kimani Waithaka is a Kenyan National, educated in theUnited   States of Americaat theUniversityofWisconsin,Madison. Majoring in Horticulture, he graduated with a PhD in 1976.

Currently, Prof. Kimani Waithaka is a Full Professor teaching Horticulture and Biotechnology in both undergraduate and postgraduate programs.

He has supervised over fourty (40) postgraduate students in areas of plant physiology, horticulture and biotechnology.

Publications


2011

  2011.  Cold Storage and Flower Keeping Quality of Cut Lisianthus (Eustoma grandiflorum L.).. College of Agriculture and Veterinary Sciences.

2007

Githunguri, CM;, Waithaka K;, Ekanayake IJ;, Imungi JK.  2007.  Influence of agro-ecological zones and plant age on the net assimilation, relative and crop growth rates of cassava.. Abstract

Five cassava genotypes were grown at three agro-ecological zones. Plants were sampled for net assimilation, crop growth and relative growth rates at four, six, eight, ten and twelve months after planting. The genotypes were arranged in a randomized complete block design, with four replicates. Cassava at the wetter agro-ecological zones had higher crop and relative growth rates than those at the drier agro-ecological zone. Plant age, agro-ecological zone and genotype effects were not important factors in determining the net assimilation rate of cassava. The lowest yielding genotype had the highest net assimilation rate demonstrating that a high net assimilation rate does not always result into high yields suggesting that net assimilation rate is not a good indicator of growth performance of cassava. The wetter agro-ecological zones had a positive effect on crop and relative growth rates, while the drier agro-ecological zone had a negative effect suggesting that the agro¬ecological zone effect is an important factor in determining them. Cassava crop and relative growth rates were highly positively correlated to root yields. Therefore, breeding and selection for cassava genotypes with the highest crop and relative growth rates and hence yields may be done at the drier agro-ecological zone.

2005

KIMANI, PROFWAITHAKA.  2005.  Obukosia, S. D., E. Kimani, Kimani Waithaka, E. Mutitu and P. M. Kimani, 2005. Effects of growth regulators and genotypes on calli induction and regeneration of pyrethrum clones (Chrysanthenum cinerariefolium Vis.) In vitro cell Development Biology-Plant . Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

2001

KIMANI, PROFWAITHAKA.  2001.  Esther W.N. Kimani, E.W. Mutitu, S.W. Waudo, Silas D. Obukosia, P.M. Kimani, J.M. Ikahu and Kimani Waithaka, 2001. Symptoms, causal agent and distribution of wilt disease of pyrethrum (Chrysanthemum cinerariafolium Vis) in Kenya. Pyrethrum Post, 21(1)35.. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  2001.  Esther W.N. Kimani, S.W. Waudo, E.W. Mutitu, S.D. Obukosia, P.M. Kimani, J.M. Ikahu and Kimani Waithaka, 2001. The relationship between Meloidogyne hapla and Fusarium species on the development of wilt disease in pyrethrum (Chrysanthemum cinerariafolium V. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  2001.  Waithaka, Kimani, Reid, M.S. and Dodge, L.L. 2001. Cold storage and flower keeping quality of cut tuberose. Journal of Horticultural Science &Biotechnology, 76(3):271-275.. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  2001.  Kirwa, F.K.S., D. Obukosia and Kimani Waithaka, 2001. Effects of genotype and in vitro media composition on micropropagation of sugar cane (Saccharums.p.). East African Agricultural and Forestry Journal volume 67:59-67. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  2001.  Waithaka, Kimani, Dodge, L.L. and Reid, M.S. 2001. Carbohydrate traffic during opening of gladiolus florets. Journal of Horticultural Science & Biotechnology, 76(1):120-124.. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

2000

Obukosia, SD, Waithaka K.  2000.  Nucellar embryo culture of Citrus sinensis L. and Citrus limon L. Abstract

Nucellar tissue cultures of polyembryonic Citrus sinensis cultivar Valencia Late and Citrus limon cultivar Rough Lemon produced somatic embryos within 60 days of culture on Murashige and Skoog (MS) basal medium supplemented with 0.4 g l-1 of filter-sterilised casein hydrolysate or 10% coconut water. Embryos that were separated and subcultured in MS media containing casein hydrolysate or coconut water but without hormones, first developed roots within 4 to 8 months and then shoots within 6 to 9 months of in vitro culture. Plantlets were transplanted to soil from 7 to 9 months after initiation. Callus-like tissue consisting of pseudobulbils was observed after 4 to 5 months from the time of initiation. Pseudobulbils developed into visible embryos with multiple cotyledons when subcultured into MS media containing casein hydrolysate or 10% coconut water after 19 to 27 days of in vitro culture. These embryos produced plantlets in which roots developed after 6 to 10 months and shoots formed after 8 to 11 months from the time of initiation.

1995

KIMANI, PROFWAITHAKA.  1995.  Itulya, F.M., Mwamba, D.K. and Waithaka, Kimani 1995. The influence of spacing and phosphorus fertilization on fresh yields of sweet peppers. East African Agricultural & Forestry Journal, 61(2):191-197.. Paper presented in the International Conference on Integrated pest Management for Sub-saharan Africa, 8-12 Sept 2002, Kampala, Uganda.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1994

KIMANI, PROFWAITHAKA.  1994.  Margrethe Serek, Kimani Waithaka, Rodney B. Jones and Michael S. Reid, 1994. Senescence of florets in the gladiolus inflorescence.. Paper presented at XVII Congress of the Scandinavian Society for PlantPhysiology. Physiology Plantarum, 91 (3) A-A22.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1994.  Serek, M. Waithaka, Kimani; Rodney B. Jones and Michael S. Reid, 1994. Senescence of florets in the Gladiolus Inflorescence. Physiologia Plantarum, 91(3): A1-A22.. Paper presented at XVII Congress of the Scandinavian Society for PlantPhysiology. Physiology Plantarum, 91 (3) A-A22.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1993

Machuka, JS;, Waithaka K;, Gopalan HNB.  1993.  Discovery and Innovation, 5(1): 75-80.
KIMANI, PROFWAITHAKA.  1993.  Njoroge, J.M., Waithaka, Kimani and Chweya, J.A. 1993. Effects of intercropping young compact Arabica coffee hybrid cv. . Paper presented at XVII Congress of the Scandinavian Society for PlantPhysiology. Physiology Plantarum, 91 (3) A-A22.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1993.  Njoroge, J.M., Waithaka, Kimani and Chweya, J.A. 1993. Evaluation of replacement methods of established traditional coffee cv. . Paper presented at XVII Congress of the Scandinavian Society for PlantPhysiology. Physiology Plantarum, 91 (3) A-A22.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1993.  Machuka, J.S., Waithaka, Kimani and H.N.B. Gopalan. 1993. Embryo culture and gel electrophoretic identification of nucellar and zygotic seedlings of Citrus lemon L. and Citrus sinensis L. Discovery and Innovation, 5(1): 75-80.. Paper presented at XVII Congress of the Scandinavian Society for PlantPhysiology. Physiology Plantarum, 91 (3) A-A22.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1992

KIMANI, PROFWAITHAKA.  1992.  Waithaka, Kimani, 1992. Development of Biotechnology Infrastructure and Capacity Building for Research and Development in Africa. Paper presented at the African Regional Symposium on Biotechnology for Development. Nairobi, Kenya.. Paper presented at the African Regional Symposium on Biotechnology for Development. Nairobi, Kenya.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1992.  Njoroge, J.M., Waithaka, Kimani, and Chweya, J.A. 1992. The influence of tree training and plant density on growth, yield components and yield of Arabica coffee cv. . Paper presented at the African Regional Symposium on Biotechnology for Development. Nairobi, Kenya.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1992.  Waithaka, Kimani, 1992. Biotechnology in Agriculture and Food: Problems, needs and priorities in developing countries - East African position. Paper presented at a Biotechnology Seminar on Impacts of Biotechnology in Agriculture and Food in Developing Cou. Paper presented at a Biotechnology Seminar on Impacts of Biotechnology in Agriculture and Food in Developing Countries.Madras, India.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1991

KIMANI, PROFWAITHAKA.  1991.  Waithaka Kimani, 1991. Challenges of plant biotechnology application and capacity building in Africa . Paper presented at the African Regional Symposium on Biotechnology for Development. Nairobi, Kenya.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1990

KIMANI, PROFWAITHAKA.  1990.  Waithaka, Kimani, 1990. Micropropagation and production of pathogen-free plants.Paper presented at Plant Biotechnology Workshop on . Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1990.  Waithaka, Kimani, 1990. Infrastructure for planning, training and popularization of biotechnology. Paper presented at the African Regional Workshop on Biotechnology for Food Production in Dry Areas, Dakar, Senegal.. Paper presented at the African Regional Workshop on Biotechnology for Food Production in Dry Areas, Dakar, Senegal.. : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1988

Reshid, K;, Waithaka K.  1988.  The Relationship Between N, P And K Concentrations In Sweet Potato Vines And Dry Matter Accumulation In Vines And Tuberous Roots As Influenced By P Fertilization. Abstract

Higher N concentrations in vines of 'Musinya' and 'Gikanda' cultivars showed a positive correlation with dry matter accumulation in the vines and a negative correlation with dry matter accumulation in tuberous roots during both seasons. Higher K concentrations in vines of both cultivars showed positive correlations with dry matter accumulation in tuberous roots and negative correlations with dry matter accumulation in the vines whenever the N concentration in the vines were substantially lower than the K concentrations. Phosphorus concentrations in the vines of both cultivars, however, showed cultivar differences in relationship with % dry matter accumulation in vines and tuberous roots during both seasons, though the relationships were weaker as compared to the relationships of N and K concentrations in vines and % dry matter accumulations in vines and tuberous roots.

Waithaka, K.  1988.  Application Of Plant Tissue Culture In Horticultural Production. Abstract

The term 'plant tissue culture' is normally used as a 'blanket' term to cover the cultivation of all plant parts whether a single cell, a group of cells or an organ on an artificial medium. The in vitro cultures are now being used as tools for the study of various basic problems in experimental biology and agriculture. The two main applications of plant tissue culture in horticultural production are in propagation and sanitation. Tissue culture is being used effectively in asexual clonal propagation of various horticultural crops. Orchids, carnations, roses, gerbera, chrysanthemums, potatoes, strawberries, apples and coffee have all been successfully cloned in vitro and the list is increasing daily. Recovery of pathogen - free plants by meristem tip culture has become a common practice in producing virus-free stock material of vegetatively propagated plants. Other areas where tissue culture can contribute to horticulture include embryo culture and germplasm preservation and storage.

KIMANI, PROFWAITHAKA.  1988.  Waithaka, Kimani and S.D. Obukosia, 1988, In vitro ovule culture of Citrus sinensis L. Recent Advances in Biotechnology and Applied Biology 683-689.. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1988.  Chepkairor, M.J. and Waithaka, Kimani, 1988. The effect of floral preservatives on the vase-life of Alstroemeria cut flowers. East African Agricultural & Forestry Journal, 53:229-231. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1986

Waithaka, K.  1986.  Flower Bulb Forcing In Kenya. Abstract

Cut flowers are among the most important horticultural produce in Kenya for domestic and export markets. Other than carnations, roses, statice, mollucela etc., bulbous plants such as liatris, arabicum, tuberose, ornithogalum, orchids, gladiolus and alstroemeria contribute a small percentage of cut flower production in Kenya. Some of these bulbous plants are temperate in origin and require low temperature treatment for dormancy release, flower induction and floral stalk elongation. Due to lack of outdoor chilling temperatures in the tropics the use cool chambers (3–5°C) is practised to chill propagative materials such as gladiolus and liatris corms. The other bulbous plants only require forcing practices such as irrigation, fertilization, and pest control to produce good quality cut flowers. The use of growth regulators in flower-bulb forcing has been minimal due to the high cost of the chemicals.

KIMANI, PROFWAITHAKA.  1986.  Waithaka, Kimani, 1986. Micropropagation of tuberose by in vitro somatic organogenesis of leaf friable callus. Intl. Congr. Plant-Tissue-Cell- Culture, 6 meet. 239.. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1986.  Waithaka, Kimani 1986. Micropropagation of tuberose by in vitro somatic organogenesis of leaf friable callus. Intl. Congr. Plant-Tissue-Culture.6 Meet. 239.. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

1985

Waithaka, K.  1985.  Liatris forcing in Kenya.
Magambo, MJS;, Waithaka K.  1985.  The Influence Of Plant Density On Dry Matter Production And Partitioning And Yield In Young Clonal Tea In Kenya. Abstract

Dry matter production and partitioning and yields in clonal tea bushes planted at 3 different spacings (0.30 x 0.30 m; 0.61 x 0.61 m; and 1.22 x 1.22m) and brought into plucking at 2 different heights (0.25 m and 0.50 m) were investigated. After 36 months of growth the bushes at close spacing (0.30 x 0.30 m) produced 1.1 and 2 times dry matter than bushes grown at medium (0.61 x 0.61 m) and wide (1.22 x 1.22 m) spacings, respectively. The bushes at close spacing had less leaf percentage of total dry matter than those at medium and wide spacings. However, the bushes at wide spacing had less frame percentage of total dry matter than those at close spacing. There were no significant differences in the root percentages between bushes at the 3 spacings. The harvest index of the bushes grown at close spacing was 13% and 16% higher than those of the bushes at medium and wide spacings, respectively. Similarly, bushes at close spacing produced yields 2 and 3 times more than bushes at medium and wide spacings, respectively. The bushes at wide spacing had significantly higher leaf/frame ratio than those bushes at close spacing. Lowering the plucking surface height reduced total dry matter in all bushes grown at the 3 spacings. The results suggest that the harvest index and yields of tea bushes can be greatly increased by reducing the size of individual bushes through increasing plant density per unit area.

Waithaka, K.  1985.  Growth And Runner Production Of Everbearing Strawberries In Kenya. Abstract

Strawberry production in the tropics is hampered by lack of enough propagative material. Propagation in Kenya is mainly by crown division because the continuous short day condition in the tropics does not favour enough runner production. Physical manipulation of the parent plants proved a little beneficial in runner production in two everbearing cultivars. Defoliation of the older leaves promoted runner production in Turft and Tioga. This resulted in an increase of daughter plants for propagation. Defoliation had no influence in all cultivars used in the study. Deblossoming promoted runner production in Turft, but failed in Tioga and Aiko. Defoliation and deblossoming or a combination of the two treatments failed to promote runner production in Aiko.

Magambo, MJS;, Waithaka K.  1985.  The Effect Of Conventional Methods Of Growing Tea On Yields. Abstract

Tea bushes are manipulated so as to form strong woody frames with the largest possible plucking surface area. Studies on dry matter production and partitioning of tea bushes have shown that the harvest index is low in old bushes and high in young bushes. The low indexes in old bushes are partly due to large amounts of wood in the primary frame which provide a large cambial sink for photosynthates. Reducing the plant size by maintaining bushes at low heights greatly increased yields per unit area of plucking surface. Thus, maintaining large bushes does not necessarily mean high yields. The impression from dry matter production and partitioning studies is the need for a thorough reinvestigation and revision of the conventional methods of growing tea which encourage the development of unnecessary large amounts of woody tissues.

KIMANI, PROFWAITHAKA.  1985.  Obukosia, S.D., Gupta, V.K. and Waithaka, Kimani, 1985. In vitro interspecific hybridization between the Kenyan Phaseolus vulgaris L. and P. acutifolia. L. Acta Horticulturae, 218: 221-230.. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.
KIMANI, PROFWAITHAKA.  1985.  Waithaka, Kimani, 1985. Application of tissue culture biotechnology in horticultural production. Acta Horticulturae, 218: 131-140.. Paper presented at Plant Biotechnology Workshop on . : EAMJ Abstract
A cross sectional study of 115 patients admitted at the Department of Orthopedics, Kenyatta National Hospital, Nairobi, Kenya was carried out to determine the prevalence and antibiotic susceptibility of Staphylococcus aureus isolated from infected wounds. The prevalence of Staphylococcus aureus was 33.0 %. The drugs tested and their corresponding sensitivity was amoxycillin (13.2 %), co-amoxyclav (39.5 %), oxacillin (55.3 %), erythromycin (44.7 %), gentamicin (60.5 %), ciprofloxacin (62.2 %), minocycline (86.8 %), cefuroxime (57.9 %), and clidamycin (84.2 %). These results show the sensitivity profile of Staphylococcus aureus and can be used to choose suitable drugs in the management of wounds for hospitalized patients.

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