Extensive on-farm disease surveys were conducted from August 1999 until March 2001 in four sorghum-growing states of the Indian Deccan plateau. A total of 965 fields were surveyed covering 228 fields in Andhra Pradesh (AP), 406 in Karnataka (KAR), 290 in Maharashtra (MH) and 41 in Tamil Nadu (TN)...
Navi, S.S.
,
Bandyopadhyay, Ranajit
,
Tonapi, V.A.
,
Rao, T.G.N.
,
Indira, S.
,
Reddy, R.K.
,
Thomas, D.
,
[Prevalence of major foliar and panicle diseases of Sorghum (Sorghum bicolor [L.] Moench) in the Deccan Plateau of India]
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Prevalence of major foliar and panicle diseases of Sorghum (Sorghum bicolor [L.] Moench) in the Deccan Plateau of India
Isolates of Claviceps causing ergot on sorghum in India were analysed by AFLP analysis, and by analysis of DNA sequences of the EF-1α gene intron 4 and β-tubulin gene intron 3 region. Of 89 isolates assayed from six states in India, four were determined to be C. sorghi, and the rest C. africana. ...
Tooley, P.
,
Carras, M.
,
Pazoutova, S.
,
Bandyopadhyay, Ranajit
,
[Analysis of Claviceps africana and C. sorghi from India using AFLPs, EF1 gene intron 4, and betatubulin gene intron 3]
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Analysis of Claviceps africana and C. sorghi from India using AFLPs, EF1 gene intron 4, and betatubulin gene intron 3
Traditional and improved varieties of maize, pearl millet and sorghum were planted by small-scale farmers under the direction of the International Institute for Tropical Agriculture in two Nigerian agro-ecological zones: the Sudan Savanna and the Northern Guinea Savanna. Samples were collected fo...
Vismer, H.
,
Shephard, G.S.
,
Rheeder, J.P.
,
Westhuizen, L. van der
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Bandyopadhyay, Ranajit
,
[Relative severity of fumonisin contamination of cereal crops in West Africa]
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Relative severity of fumonisin contamination of cereal crops in West Africa
Sorghum ergot in India is caused by Claviceps africana and C. sorghi. The distributions of these two species in India is not known. Eighty-nine sorghum ergot isolates were cultured from young sphacelia obtained from male sterile sorghum plants artificially inoculated using inoculum collected in t...
Muthusubramanian, V.
,
Bandyopadhyay, Ranajit
,
Rajaram Reddy, D.
,
Tooley, P.
,
[Cultural characteristics, morphology, and variation within Claviceps africana and C. sorghi from India]
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Cultural characteristics, morphology, and variation within Claviceps africana and C. sorghi from India
Sorghum ergot, initially restricted to Asia and Africa, was recently found in the Americas and Australia. Three species causing the disease have been reported: Claviceps sorghi in India, C. sorghicola in Japan, and C. africana in all ergot-positive countries. The objective of our study was to stu...
Pazoutova, S.
,
Bandyopadhyay, Ranajit
,
Frederickson, D.E.
,
Mantle, P.G.
,
Frederiksen, R.A.
,
[Relations among sorghum ergot strains from the United States, Mexico, Puerto Rico, Bolivia, India and Australia]
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Relations among sorghum ergot strains from the United States, Mexico, Puerto Rico, Bolivia, India and Australia
Navi, S.S.
,
Bandyopadhyay, Ranajit
,
Tonapi, V.A.
,
Rao, T.G.N.
,
Tooley, P.W.
,
Reddy, R.K.
,
Indira, S.
,
Pande, S.
,
[Prevalence of ergot of sorghum in India]
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Prevalence of ergot of sorghum in India
Navi, S.S.
,
Bandyopadhyay, Ranajit
,
Blümmel, Michael
,
Reddy, R.K.
,
Thomas, D.
,
[Maize stripe virus: A disease of sorghum emerging in South India]
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Maize stripe virus: A disease of sorghum emerging in South India
This paper reports the occurrence of bacterial leaf streak (Xanthomonas campestris pv. holcicola [Xanthomonas vasicola pv. holcicola]) on sorghum (Sorghum bicolor) at the ICRISAT research farm, Andhra Pradesh, India and in several farmers fields in Karnataka in 1999-2001. Disease symptoms were sm...
Navi, S.
,
Bandyopadhyay, Ranajit
,
Devi, K.
,
Reddy, D.
,
[Bacterial Leaf Streak of sorghum a new report from India]
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Bacterial Leaf Streak of sorghum a new report from India
Aflatoxins are a common contaminant of cereals that can cause cancer, liver disease, immune suppression, retarded growth and development, and death, depending on the level and duration of exposure. Maize is an introduced crop to Africa and there have been efforts over the last 20 years or so to r...
Bandyopadhyay, Ranajit
,
Kumar, M.
,
Leslie, J.
,
[Relative severity of aflatoxin contamination of cereal crops in West Africa]
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Relative severity of aflatoxin contamination of cereal crops in West Africa
A regional Sorghum Head-Bug and Grain Mold Trial was conducted in 1996 and 1997 by WCASRN in, respectively, 15 and 13 research stations in ten west and central African countries. Empirical relationships between weather factors and head-bug damage on the one hand, and between weather factors and g...
Ratnadass, A.
,
Butler, D.R.
,
Marley, P.S.
,
Bandyopadhyay, Ranajit
,
Hess, D.E.
,
Akintayo, I.
,
[Sorghum headbugs and grain molds in West and Central Africa: II. Relationships between weather, headbug and mold damage on sorghum grains]
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Sorghum headbugs and grain molds in West and Central Africa: II. Relationships between weather, headbug and mold damage on sorghum grains