ORIGINAL ARTICLE
Efficacy of solar heat in the control of bacterial soft rot of potato tubers caused by Erwinia carotovora ssp. Carotovora
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Department of Crop Protection, University of Maiduguri
P.M.B. 1069, Maiduguri
Borno State, Nigeria
Corresponding author
Bulus Shapshi Bdliya
Department of Crop Protection, University of Maiduguri
P.M.B. 1069, Maiduguri
Borno State, Nigeria
Journal of Plant Protection Research 2007;47(1):11-18
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ABSTRACT
The efficacy of solar heat in the control of bacterial soft rot of potato tubers was investigated in Maiduguri, semi-arid region of Northeastern Nigeria. Artificially contaminated tubers were exposed to solar heat for duration of 0, 30, 60, 120 and 180 minutes. The results showed that exposures for 120 and 180 minutes gave the highest control of the disease, although during the hot dry season
(mean temperature at exposure was 54.6°C) exposure even for 30 minutes gave satisfactory control of the disease. Solar heat can therefore be used to control of bacterial soft rot of potato tubers.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
REFERENCES (13)
1.
Adams M.J., Griffith R.L. 1978. The effect of harvest date and duration of wound healing condition on the susceptibility of damaged potato tubers to infection by Phoma exigua (gangrene). Ann. App. Biol. 88: 51–55.
2.
Anonymous 2006. Annual meteological report, 2001–2005. Federal Department of Meteorological Services, Maiduguri, Borno State, Nigeria, 21 pp.
3.
Bartz J.A., Kelman A. 1985b. Effect of air-drying on soft rot potential of potato tubers inoculated by immersion in suspension of Erwinia carotovora. Plant Dis. 69: 128–131.
4.
Bdliya B.S., Langerfeld E. 2005a. A semi-selective medium for detection, isolation and enumeration of Erwinia carotovora ssp. carotovora from plant materials and soil. Tropical Sci. 45: 90–96.
5.
Bdliya B.S., Langerfeld E. 2005b. Soft rot and Blackleg [Erwinia carotovora ssp. atroseptica (Van Hall) Dye] of potato as affected by inoculum density and variety. Niger. J. Plant Protect. 22: 65–75.
6.
Gomez K.A., Gomez A.A. 1984. Statistical Procedure for Agricultural Research. 2nd ed. John Wiley and Sons, 680 pp.
7.
Harris R.I. 1979. Chemical control of bacterial soft-rot of wounded potato tubers. Potato Res. 22: 245–249.
8.
Hide G.A., Boorer K.J. 1991. Effect of drying potatoes (Solanum tuberosum L.) after harvest on the incidence of disease after storage. Potato Res. 34: 133–137.
9.
Knowles N.R., Iritani W.M., Weller L.D., Gross D.C. 1982. Susceptibility of potatoes to bacterial rot and weight loss as a function of wound healing interval and temperature. Amer. Potato J. 59: 515–522.
10.
Lale N.E.S., Ajayi F.A. 2001. Supression of development of Callosobruchus maculatus (F.)(Coleoptra: Bruchidae) in bambara groundnut seeds exposed to solar heat in the Nigerian savanna. J. Pest Sci. 74: 133–137.
11.
Lale N.E.S., Maina Y.T. 2002. Evaluation of host resistance, solar heat and insecticidal essential oils for the management of Caryedon serratus (Olivier)(Coleoptra, Bruchidae) infesting groundnut seeds and tamarind pods in storage. J. Plant Dis. Protect. 109: 410–420.
12.
Maina Y.T., Lale N.E.S. 2004. Integrated management of Callosobruchus maculatus (F.) infesting cowpea seeds in storage using varietal resistance, application of neem (Azadirachta indica A. Juss) seed oil and solar heat. Inter. J. Agric. Biol. 06 (3): 440–446.
13.
Perombelon M.C.M. 1990. Hot water treatment to control seed borne blackleg and fungal blemish diseases of potatoes. Scottish Crop Res. Inst. (SCRI) Ann. Rep.: 69–72.