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Journal Article 1994

Autor: Thottappilly, G. Ng, N.Q. Rossel, H.W.
Enlace original: https://cgspace.cgiar.org/handle/10568/101785

Investigación en Agricultura
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Thottappilly, G. ,  Ng, N.Q. ,  Rossel, H.W. ,  [Screening germplasm of Vigna vexillata for resistance to cowpea mottle virus] ,  Screening germplasm of Vigna vexillata for resistance to cowpea mottle virus
Journal Article 1990

Autor: Gumedzoe, M.Y. Sunu, D.Y. Thottappilly, G. Asselin, A.

Deux virus du niébé (Vigna unguiculata), le virus de la marbrure du niébé et le virus de la mosaïque jaune du niébé, ont été étudiés. Les deux virus ont été identifiés et caractérisés à l'aide de la gamme de plantes indicatrices et de méthodes sérologiques. Les deux virus sont très répandus dans ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101853

Investigación en Agricultura
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Gumedzoe, M.Y. ,  Sunu, D.Y. ,  Thottappilly, G. ,  Asselin, A. ,  [Importance du virus de la marbure du niebe et du virus de la mosaique jaune du niebe au Togo] ,  Importance du virus de la marbure du niebe et du virus de la mosaique jaune du niebe au Togo
Book 1996

Autor: Thottappilly, G. Rossel, H.W.

Eight viruses are reported from cowpeas in Africa. Cowpea viruses are described from lowland, humid and sub-humid West Africa, as well as from mid-altitude ecological zones mainly found in eastern and southern Africa. Wherever facilities are limited and detailed characterization is not possible, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97268

Investigación en Agricultura
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Thottappilly, G. ,  Rossel, H.W. ,  [Virus diseases of cowpea in Africa: IITA Research Guide, No. 53] ,  Virus diseases of cowpea in Africa: IITA Research Guide, No. 53
Journal Article 2005

Autor: Ogundiwin, E. Thottappilly, G. Akenova, M.E. Pillay, M. Fatokun, C.A.

Vigna vexillata is a wild cross-incompatible relative of cowpea. It is highly resistant to several diseases and pests plaguing cowpea. A linkage map was developed for V. vexillata comprising 120 markers, including 70 random amplified polymorphic DNAs, 47 amplified fragment length polymorphisms, o...

Enlace original: https://cgspace.cgiar.org/handle/10568/91864

Investigación en Agricultura
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Ogundiwin, E. ,  Thottappilly, G. ,  Akenova, M.E. ,  Pillay, M. ,  Fatokun, C.A. ,  [A genetic linkage map of Vigna vexillata] ,  A genetic linkage map of Vigna vexillata
Journal Article 1997

Autor: Shoyinka, S.A. Thottappilly, G. Adebayo, G.G. Anno-Nyako, F.O.

Enzyme-linked immunosorbent assay (ELISA) was used to detectviruses in649 cowpea leafsamples collectedfrom115 fields during a 3-year survey carried out from 1991 to 1993 throughout all agroecological zones in Nigeria. Six viruses, cowpea aphid-borne mosaic potyvirus (CAMV), blackeye cowpea mosaic...

Enlace original: https://cgspace.cgiar.org/handle/10568/98620

Investigación en Agricultura
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Shoyinka, S.A. ,  Thottappilly, G. ,  Adebayo, G.G. ,  Anno-Nyako, F.O. ,  [Survey on cowpea virus incidence and distribution in Nigeria] ,  Survey on cowpea virus incidence and distribution in Nigeria
Journal Article 1997

Autor: Pellegrineschi, A. Fatokun, C.A. Thottappilly, G. Adepoju, A.A.

Factors responsible for successful rescue of immature embryos of cowpea [Vigna unguiculata (L.) Walp.] and V. vexillata (L.) and for in vitro embryo development were studied. A new basal medium for embryo development in vitro was formulated on the basis of the mineral composition of embryos. Sucr...

Enlace original: https://cgspace.cgiar.org/handle/10568/98622

Investigación en Agricultura
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Pellegrineschi, A. ,  Fatokun, C.A. ,  Thottappilly, G. ,  Adepoju, A.A. ,  [Cowpea embryo rescue: influence of culture media composition on plant recovery from isolated immature embryos] ,  Cowpea embryo rescue: influence of culture media composition on plant recovery from isolated immature embryos
Journal Article 1996

Autor: Gumedzoe, M.Y.D. Thottappilly, G. Asselin, A.

Cowpea (Vigna unguiculata L. Walp) is one of the major grain legumes in tropical Africa. This leguminous plant is susceptible to many diseases including those caused by viruses. This article reports results from surveys conducted from the main cowpea producing areas in Togo for the occurrence of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/103259

Investigación en Agricultura
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Gumedzoe, M.Y.D. ,  Thottappilly, G. ,  Asselin, A. ,  [Occurence of Southern bean mosaic virus (SBMV) in Togo and its interaction with some cowpea cultivars] ,  Occurence of Southern bean mosaic virus (SBMV) in Togo and its interaction with some cowpea cultivars
Journal Article 1992

Autor: Mesfin, T. Thottappilly, G. Singh, S.R.

The feeding activity of Aphis craccivora (Koch) was monitored on cowpea plants of aphid‐susceptible (Vita 7) and aphid‐resistant (TVu 801) cultivars, using an AC electronic feeding monitoring system. Waveforms corresponding to salivation, phloem ingestion and non‐phloem ingestion were observed. A...

Enlace original: https://cgspace.cgiar.org/handle/10568/100022

Investigación en Agricultura
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Mesfin, T. ,  Thottappilly, G. ,  Singh, S.R. ,  [Feeding behaviour of Aphids craccivora (Koch) on cowpea cultivars with different levels of aphid resistance] ,  Feeding behaviour of Aphids craccivora (Koch) on cowpea cultivars with different levels of aphid resistance
Journal Article 2000

Autor: Boxtel, J. van Singh, B. Thottappilly, G. Maule, A.

Virus diseases cause substantial yield reduction in cowpea ( Vigna unguiculata (L.) Walp) production in West and Central Africa. Improved cowpea cultivars have been developed and distributed to various national programs but these cultivars were tested only against local virus isolates. To identif...

Enlace original: https://cgspace.cgiar.org/handle/10568/100086

Investigación en Agricultura
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Boxtel, J. van ,  Singh, B. ,  Thottappilly, G. ,  Maule, A. ,  [Resistance of cowpea (Vigna unguiculata (L.) Walp.) breeding lines to blackeye cowpea mosaic and cowpea aphid borne mosaic potyvirus isolates under experimental conditions] ,  Resistance of cowpea (Vigna unguiculata (L.) Walp.) breeding lines to blackeye cowpea mosaic and cowpea aphid borne mosaic potyvirus isolates under experimental conditions
Book 1998

Autor: Thottappilly, G. Rossel, H.

Huit virus ont ete signrues sur Ie niebe en Afrique. Les virus du niebe sont decrits pour les basses terres hum ides et subhumides de I'Afrique occidentale ainsi que pour les wnes ecologiques d'rutitude moyenne en Mrique orientale et australe. Chaque fois que les installations sont limitees et qu...

Enlace original: https://cgspace.cgiar.org/handle/10568/95922

Investigación en Agricultura
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Thottappilly, G. ,  Rossel, H. ,  [Les maladies virales du niebe en Afrique: Guide de recherche de lIita, No. 53] ,  Les maladies virales du niebe en Afrique: Guide de recherche de lIita, No. 53

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