Bio

Mr. Nicodemus N. Musembi

Nicodemus Ndawa Musembi is a Kenyan National and currently a member of teaching staff at the Department of Plant Science and Crop Protection, University of Nairobi. He has wide experience on methyl bromide and its alternatives, which he acquired when he was one (Horticultural Specialist) of the National MB phase-out team members , under a UNDP/GTZ/GoK Methyl Bromide Alternatives Project, funded by the Multilateral Fund. Mr.

Publications


2015

2013

MUSEMBI, NICODEMUSNDAWA, Hutchinson MJ, Waithaka K.  2013.  The Effect of Aluminium Sulphate, Sodium Hypochlorite plus Citric Acid and Silver Thiosulphate on Water Relations and Vase Life of Harvested Eustoma grandiflorum Flowers, 9th -13th Sept.. 1st International Symposium on Ornamentals in Africa (ISHS). , Morendat Conference Centre - Naivasha, Kenya
MUSEMBI, NICODEMUSNDAWA, Hutchinson MJ, Waithaka K.  2013.  The Effects of 6-Benzylaminopurine and Gibberellic Acid on Postharvest Physiology of Lisianthus (Eustoma grandiflorum) Flowers: II. Influence of Dose on Inflorescence Architecture and Quality, 9th - 13th Sept.. 1st International Symposium on Ornamentals in Africa. , Morendat Conference Centre - Naivasha
MUSEMBI, NICODEMUSNDAWA, Hutchinson MJ, Waithaka K.  2013.  The Effects of 6-Benzylaminopurine and Gibberellic acid on Postharvest Physiology of Lisianthus (Eustoma grandiflorum) Flowers: I. Novel Synergism Improves Water Balance and Vase Life, 9th -13th Septem. 1st International Symposium on Ornamentals in Africa (Organized by The ISHS). , Morendat Conference Centre - Naivasha
MUSEMBI, NICODEMUSNDAWA.  2013.  Technically, Economically and Commercially (TEC) Feasible Methyl Bromide Alternatives: The Role of Value-chain Approach in Sustainability . UNEP, Webinar Series: “A5 Countries Readiness for Methyl Bromide Phase-out by 1st January 2015: Addressing the Challenges of Sustainability” UNEP, Paris, France.
MUSEMBI, NICODEMUSNDAWA.  2013.  CYTOKININ-TO-GIBBERELLIN RATIO REGULATES WATER STATUS, ETHYLENE EVOLUTION AND SENESCENCE IN LISIANTHUS FLOWERS VIA NOVEL SIGNALING PATHWAY. 1st National Science Technology and Innovation Week. :134-141., KICC, Nairobi, Kenya: National Commission for Science, Technology and Innovation
MUSEMBI, NICODEMUSNDAWA.  2013.  WATER RELATIONS AND NOVEL CYTOKININ-GIBBERELLIN SYNERGISM IN HARVESTED LISIANTHUS (EUSTOMA GRANDIFLORUM SHINN.) FLOWERS. 1st National Science Technology and Innovation Week. :127-134., KICC, Nairobi, Kenya: National Commission for Science Technology and Innovation

2012

MUSEMBI, NICODEMUSNDAWA, ADEYA NICOLAS, MURIGI WINNIEWANJIKU.  2012.  Interactions between hormonal and developmental signalling in. The Journal of Horticultural Science & Biotechnology. 87(5):419-423.

2010

MUSEMBI, NICODEMUSNDAWA.  2010.  Methyl Bromide Alternatives in Africa: Floating Tray Technology. DVD Video (35 min). , Nairobi, Kenya: UNEP
MUSEMBI, NICODEMUSNDAWA.  2010.  Methyl Bromide Phase-out and Floriculture. DVD Video (35 min).. , Nairobi, Kenya: UNEP

2003

Onamu, R, Obukosia SD, Musembi N, Hutchinson MJ.  2003.  Efficacy of thidiazuron in in vitro propagation of carnation shoot tips: influence of dose and duration of exposure. Abstract

One of the main challenges facing production of good quality cut flowers is the lack of clean planting material especially among resource poor farmers who resort to multiplying their own propagules with detrimental results. Carnation (Dianthus caryophillus L. cv. Yair) is an important export crop among farmers in Kenya. Carnation production, however, is constrained by lack of clean planting materials. The main objective of this study was to evaluate the potency of thidiazuron (TDZ), a phenyl urea, in evoking morphogenic response invitro compared to combined auxin (NAA) and cytokinin (kinetin) from shoot tip explants of carnations as one possibility of producing en mass clean planting materials. In addition, the study was instituted to determine the optimum concentration and duration of exposure of TDZ in the number, length and general quality of shoots formed. Results from the study indicate that TDZ, at low concentrations of 0.1-1 μM, was just as effective as 0.2 mg-1 L NAA + 0.2 m-1 L kinetin in improving the number, length and quality of shoots regenerated from the explants cultured in vitro. Although multiple shoots were formed from explants cultured on media supplemented with high doses of TDZ (5 μM), they were dwarfed and of a poorer quality. Prolonged exposure of carnation shoot tip explants to high concentrations of TDZ was detrimental to plant regeneration. Sufficient morphogenic response could be achieved by exposing the explants to 1-5 μM TDZ for short durations of 3-10 days with subsequent transfer to MS basal medium devoid of any plant growth regulators.

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