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Journal Article 1994

Autor: Berner, D.K. Cardwell, K. Faturoti, B. Ikie, F. Williams, O.

In field trials conducted in Nigeria during 1991-92, the factors affecting the seed dispersal of Striga spp. were evaluated. Petrolatum-coated microscope slides placed at regular intervals from S. hermonthica plants and suspended from trees at 1-, 2- and 3-m above-ground heights within and around...

Enlace original: https://cgspace.cgiar.org/handle/10568/100896

Investigación en Agricultura
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Berner, D.K. ,  Cardwell, K. ,  Faturoti, B. ,  Ikie, F. ,  Williams, O. ,  [Relative roles of wind, crop seeds, and cattle in the dispersal of Striga species] ,  Relative roles of wind, crop seeds, and cattle in the dispersal of Striga species
Journal Article 1996

Autor: Rugutt, J.k. Fischer, N.H. Nauman, M.A. Schidt, T.J. Berner, D.K.

The high field1H and13C resonances of obacunone were established by a series of I D and 2D NMR experiments. The13C-NMR signals of the five tertiary methyl groups and all quatenary carbons were unambiguously assigned. The results confirm the stereochemical assignments at all stereogenic centres.

Enlace original: https://cgspace.cgiar.org/handle/10568/103255

Investigación en Agricultura
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Rugutt, J.k. ,  Fischer, N.H. ,  Nauman, M.A. ,  Schidt, T.J. ,  Berner, D.K. ,  [13CNMR assignments for methyls and quarternary carbons of the limonoid abacunone] ,  13CNMR assignments for methyls and quarternary carbons of the limonoid abacunone
Journal Article 2003

Autor: Ahonsi, M.O. Berner, D.K. Emechebe, A.M. Lagoke, S.T.O. Sanginga, N.

Striga hermonthica (Del.) Benth. is an obligate, root-parasitic, flowering plant that limits cereal production in sub-Saharan Africa.Successful control depends on eliminating its seed reserves in soil, thereby preventing parasitism. Striga hermonthica seeds germinate only if adequately conditione...

Enlace original: https://cgspace.cgiar.org/handle/10568/98092

Investigación en Agricultura
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Ahonsi, M.O. ,  Berner, D.K. ,  Emechebe, A.M. ,  Lagoke, S.T.O. ,  Sanginga, N. ,  [Potential of ethyleneproducing pseudomonads in combination with effective N2fixing bradyrhizobial strains as supplements to legume rotation for the control of Striga hermonthica] ,  Potential of ethyleneproducing pseudomonads in combination with effective N2fixing bradyrhizobial strains as supplements to legume rotation for the control of Striga hermonthica
Journal Article 1997

Autor: Berner, D.K. Ikie, F.O. Green, J.M.

Seed treatments with two acetolactate synthase (ALS)-inhibiting herbicides, the sulfony- lurea herbicide nicosulfuron and the imidazolinone herbicide imazaquin, controlled the parasitic weed Striga hermonthica in corn. The XA-17 gene in ALS-modified P3180IR corn strongly reduced corn injury from ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98668

Investigación en Agricultura
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Berner, D.K. ,  Ikie, F.O. ,  Green, J.M. ,  [ALSinhibiting herbicide seed treatments control Striga hermonthica in ALSmodified corn (zea mays)] ,  ALSinhibiting herbicide seed treatments control Striga hermonthica in ALSmodified corn (zea mays)
Journal Article 1997

Autor: Czerwenka-Wenkstetten, I.M. Berner, D.K. Schilder, A. Gretzmacher, R.

Striga is a weed known to be devastating to crops in the tropics. Yield reductions in maize of up to 90% have been observed in West Africa. In September 1994, a seed lot of Striga hermonthica (harvested in 1993 in sorghum fields in Abuja, Nigeria) was observed to have a very low germination rate ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98661

Investigación en Agricultura
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Czerwenka-Wenkstetten, I.M. ,  Berner, D.K. ,  Schilder, A. ,  Gretzmacher, R. ,  [First report and pathogenicity of Myrothecium roridum, Curvularia eragrostidis and C.lunata on seeds of Striga hermonthica in Nigeria] ,  First report and pathogenicity of Myrothecium roridum, Curvularia eragrostidis and C.lunata on seeds of Striga hermonthica in Nigeria
Journal Article 2000

Autor: Merkel, U Peters, Michael Schultze-Kraft, Rainer Berner, D.K.

A collection of 64 accessions of the South American pasture legume Aeschynomene histrix Poiret was characterized in 1995 at Ibadan in south-west Nigeria in order to test the potential of the accessions as forage plants in subhumid areas and as a trap crop for the parasitic plant Striga hermonthic...

Enlace original: https://cgspace.cgiar.org/handle/10568/43255

Investigación en Agricultura
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Merkel, U ,  Peters, Michael ,  Schultze-Kraft, Rainer ,  Berner, D.K. ,  [Characterization of a collection of Aeschynomene histrix in subhumid Nigeria] ,  Characterization of a collection of Aeschynomene histrix in subhumid Nigeria
Journal Article 1992

Autor: Berner, D.K. Killani, A.S. Aigbokhan, E.I. Couper, D.C.

During the rainy season of 1991, severely reduced plant stands and severely stunted plants were observed in several fields of the cover crop Mucuna pruriens (L.) DC. var. utilis (Wallich ex Wight) Baker ex Burck at the International Institute of Tropical Agriculture in Ibadan, Nigeria. Initial ou...

Enlace original: https://cgspace.cgiar.org/handle/10568/103273

Investigación en Agricultura
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Berner, D.K. ,  Killani, A.S. ,  Aigbokhan, E.I. ,  Couper, D.C. ,  [Macrophomina phaseolina on the tropical cover crops Mucuna pruriens var. utilis] ,  Macrophomina phaseolina on the tropical cover crops Mucuna pruriens var. utilis
Journal Article 2000

Autor: Aigbokhan, E.I. Berner, D.K. Musselman, L.J. Mignouna, H.D.

Striga aspera and Striga hermonthica are recognized as separate species, but their close morphological similarity causes difficulty in distinguishing between them in areas where they coexist in Africa. In this study, crosses between the species were made using randomly selected morphologically ty...

Enlace original: https://cgspace.cgiar.org/handle/10568/100090

Investigación en Agricultura
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Aigbokhan, E.I. ,  Berner, D.K. ,  Musselman, L.J. ,  Mignouna, H.D. ,  [Evaluation of variability in Striga aspera, Striga hermonthica and their hybrids using morphological characters and random amplified polymorphic DNA markers] ,  Evaluation of variability in Striga aspera, Striga hermonthica and their hybrids using morphological characters and random amplified polymorphic DNA markers
Journal Article 1998

Autor: Aigbokhan, E.I. Berner, D.K. Musselman, L.J.

Striga aspera and S. hermonthica are sympatric in Africa. Each may serve as virulent gene reservoirs for the other if they hybridize and their hybrids are virulent and fertile. Intraspecific and interspecific crosses were made within and between the species, and reproductive success was determine...

Enlace original: https://cgspace.cgiar.org/handle/10568/101001

Investigación en Agricultura
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Aigbokhan, E.I. ,  Berner, D.K. ,  Musselman, L.J. ,  [Reproductive ability of hybrids of Striga aspera and Striga hermonthica] ,  Reproductive ability of hybrids of Striga aspera and Striga hermonthica
Journal Article 1996

Autor: Rugutt, J.K. Rugutt, J.k. Irani, R.J. Fischer, N.H. Berner, D.K. McCarley, T.D.

We have analyzed the dichloromethane (CH2Cl2) extracts of seeds of dry and conditioned Striga hermonthica (Del.) Benth., S. aspera (Willd.) Benth., and S. gesnerioides (Willd.) Vatke by means of gas chromatography (GC) coupled to mass spectrometry (MS). Sixteen compounds were identified on the ba...

Enlace original: https://cgspace.cgiar.org/handle/10568/101020

Investigación en Agricultura
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Rugutt, J.K. ,  Rugutt, J.k. ,  Irani, R.J. ,  Fischer, N.H. ,  Berner, D.K. ,  McCarley, T.D. ,  [GC/MS evaluation of compounds in dry and conditioned Striga species seeds] ,  GC/MS evaluation of compounds in dry and conditioned Striga species seeds

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