Incidence of pearl millet downy mildew [Sclerospora graminicola [Sacc.]] in Nigeria

• Autorzy: Zarafi A B , Emechebe A.M.

Warianty tytułu

PL

Wystepowanie maczniaka wlasciwego [Scleropsora graminicola [Sacc.]] w uprawach prosa perlowego w Nigerii

• Języki publikacji: EN

Abstrakty

EN

An extensive survey of downy mildew (Sclerospora graminicola) incidence on pearl millet (Pennisetumglaucum) grown in farmers’ fields was undertaken in 2002 in pearl millet-growing areas of Nigeria – the Sahel, Sudan Savanna, northern Guinea Savanna and southern Guinea Savanna agroecological zones. Downy mildew incidence was assessed on two types of pearl millet “gero” and “maiwa” and in 32 locations in these zones. Incidence in “gero” millet was the highest in Sudan Savanna and the lowest in the Sahel zone. Cropping pattern and seed rate affected incidence of the disease which was highest in the fields with pure stand than mixed stand cropped with legumes..

PL

W roku 2002 oceniono nasilenie występowania mączniaka właściwego [Sclerospora graminicola (Sacc.) Schroet] w uprawach prosa perłowego [Penisetumglaucum (L.)] w pięciu agroekologicznych rejonach Nigerii: Sahel, Sudan Savanna, północna Guinea Savanna oraz południowa Guinea Savanna. Badaniami objęto dwie odmiany prosa wysiewane w 32 miejscowościach. Wykazano, że nasilenie mączniaka zależało od sposób uprawy roślin oraz ilości nasion wysiewanych na hektar.

Słowa kluczowe

EN

plant protection; pearl millet; downy mildew; Sclerospora graminicola; Nigeria; Pennisetum glaucum; plant disease; disease incidence

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2005
• Tom: 45
• Numer: 3
• Opis fizyczny: p.155-162,fig.,ref.

Twórcy

autor

Zarafi A B

• Ahmadu Bello university, Zaria, Nigeria

autor

Emechebe A.M.

Bibliografia

• Agboola S.A. 1979. An Agricultural Atlas of Nigeria. Oxford University Press, 248 pp.
• Agrios G.N. 1997. Effect of human cultural practices and control measures, p. 158–159. In “Plant Pathology”. Fourth Edition, Academic Press, N.Y., 803 pp.
• AnasoA.B. 1996 Pearl millet downy mildew in Maiduguri, Nigeria. Disease incidence and yield loss estimates. Nigerian J. Plant Protection 16: 82–92.
• Anonymous. 1987 Cropping scheme meeting. Report on cereal research programme. Institute for Agricultural Research (IAR) Samaru, Zaria.
• Cloud G.L., Rupe. J.C. 1994. Influence of nitrogen, plant growth stage and environment on charcoal rot of sorghum caused by Macrophomina phaseolina (Tassi) Goid. Plant and Soil 158: 203–210.
• Durbin R.D., Frederiksen R.A. Kelma A., Renfro B.L. 1980. Strategies for the control of graminaceous downy mildew. Proc. Intern. Conf. on the Graminaceous Downy Mildew Diseases. Bellagio, Italy: 95–116.
• El Tarabily K.A., Hardh G.E., Sivasithamparam K. 1997. Effect of host age on development of cavity spot disease of carrots caused by Pythiumcoloratum in western Australia. Australian J. Botany 45: 727–734.
• Fajemisin J.M. 1980. Downy mildew of maize in Nigeria. Strategies for the Control. Proc. Intern. Conference on the Graminaceous Downy Mildew Diseases. Bellagio, Italy: 120–134.
• Gilijamse E., Frinking H.D., Jeger M.J. 1997. Occurrence and epidemiology of pearl millet downy mildew, Sclerospora graminicola, in southwest Niger. Intern. J. Pest Management 42: 279–283.
• Gupta G.K., Singh D. 1996. Studies on the influence of downy mildew infection on yield and yield contributing plant characters of pearl millet in India. Intern. J. Pest Management 42: 89–93
• Heenan D.P., Taylor A.C., Cullis B.R., Lill W.J. 1994. Long term effects of rotation, tillage and stubble management on wheat production in southern N.S.W. Australian J. Agric. Res., 45: 93–117.
• Honeycutt C.W., Claoham W.M., Leach S.S. 1996. Crop rotation and nitrogen fertilization effect on growth, yield and disease incidence in potato. American Potato J., 73: 46–61.
• Hong C.X., Fitt B.D.L. 1995. Effect of inoculum concentration, leaf age and wetness period on the development of dark leaf and pod spot (Alternaria brassicae) on oilseed rape (Brassica napus). Ann. Appl. Biology 127: 283–295.
• Jeger M.J., Gilijamse E., Bock C.H., Frinking H.D. 1998. The epidemiology, variability and control of the downy mildews of pearl millet and sorghum with particular reference to Africa. Plant Pathol., 47: 544–569.
• Olanya O.M., Fajemisin J.M., Oyekan P. 1993. Incidence and geographical distribution of downy mildew on maize caused by Peronosclerospora sorghi in Nigeria. Intern. J. Pest Management 39: 28–34.
• Panique E., Kelling K.A., Schulte E.E., Hero D.E., James R.V., Stevenson W.R. 1997. Potassium rate and source effect on potato yield, quality and disease interaction. American Potato J., 74: 379–398.
• Pratt R.G., Janke G.D. 1978. Oospores of Sclerospora sorghi in soil of south Texas and their relationships to the incidence of downy mildew of grain sorghum. Phytopathology 68: 1600–1605.
• Quendeba B., Ejeta G., Hanna W.W., Kumar A.K. 1995. Diversity among African pearl millet landrace populations. Crop Sci., 35: 919–924.
• Selveraj J.C. 1979. Research on pearl millet diseases in Nigeria. A paper presented at the International Pearl Millet Workshop, ICRISAT, Hyderabad, India, 20 pp.
• Singh S.D., King S.B., Werder J. 1993. Downy mildew disease of pearl millet. ICRISAT Inform. Bull., 37, 35 pp.
• Sivakumar M.V.K., Maidoukia A., Stern R.D. 1993. Agro climatology of West Africa. ICRISAT Inform. Bull., 5, 108 pp.
• Sweetmore A., Simeon S.A., Kenward M. 1994. Comparison of disease progress curves for yam anthracnose (Colletotrichumgloeosporioides). Plant Pathol., 43: 206–215.
• Vloutoglou I., Kalogerakis S.N. 2000. Effects of inoculum concentration, wetness duration and plant age on development of early blight (Alternaria solani) and on shedding of leaves in tomato plants. Plant Pathol., 49: 339–345.
• Werder J., ManzoS.K. 1992. Pearl Millet Diseases in Western Africa. p. 109–114. In “Sorghum and Millet Diseases: A Second World Review” (W.A.J. de Milliano, R.A Frederiksen, G.D.Banaston, eds.). Patancheru, A.P. 502324, India ICRISAT CP 734.