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Journal Article 1990

Autor: Piergiovanni, A.R. Della Gatta, C.D. Ng, N.Q. Singh, B.B. Singh, S.R. Perrino, P.

Fatty acid composition of extracted oils from 58 lines of cowpea (Vigna unguicuiata (L) Walp) was investigated by gas‐liquid chromatography (GLC). Considerable variability was observed in the fatty acid profile, though palmitic (16:0), linoleic (18:2) and linolenic (18:3) acids were the dominant ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101822

Investigación en Agricultura
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Piergiovanni, A.R. ,  Della Gatta, C.D. ,  Ng, N.Q. ,  Singh, B.B. ,  Singh, S.R. ,  Perrino, P. ,  [Fatty acid composition and insect resistance in Vigna unguiculata seeds] ,  Fatty acid composition and insect resistance in Vigna unguiculata seeds
Conference Paper 1990

Autor: Piergiovanni, A.R. Della Gatta, C.D. Singh, B.B. Singh, S.R. Ng, N.Q. Perrino, P.

Trypsin inhibitor content was determined in the seeds of 21 cowpea (Vigna unguiculata) lines (10 known to be resistant to Callosobruchus maculatus and 11 susceptible) whilst fatty acid composition was determined in 58 lines (11 resistant and 47 susceptible). A wide range in trypsin inhibitor cont...

Enlace original: https://cgspace.cgiar.org/handle/10568/101821

Investigación en Agricultura
Enlace permanente
Piergiovanni, A.R. ,  Della Gatta, C.D. ,  Singh, B.B. ,  Singh, S.R. ,  Ng, N.Q. ,  Perrino, P. ,  [Biochemical seed analysis in relation to bruchid resistance] ,  Biochemical seed analysis in relation to bruchid resistance
Conference Paper 1990

Autor: Lattanzio, V. Linsalata, V. Maruca, G. Marullo, R. Singh, B.B. Singh, S.R. Perrino, P.

Phenolic compounds were analysed in leaf samples from 9 lines known to be resistant or susceptible to aphids (mainly Aphis craccivora but also, to a lesser extent, A. fabae). Resistant lines TVu3000, IT84E and IT83S742 had higher flavonoid glycoside contents than the susceptible lines VITA7, TVu3...

Enlace original: https://cgspace.cgiar.org/handle/10568/101837

Investigación en Agricultura
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Lattanzio, V. ,  Linsalata, V. ,  Maruca, G. ,  Marullo, R. ,  Singh, B.B. ,  Singh, S.R. ,  Perrino, P. ,  [Preexisting phenols and resistance to aphid in cowpea (Vigna unguiculata [L.] Walp.)] ,  Preexisting phenols and resistance to aphid in cowpea (Vigna unguiculata [L.] Walp.)
Journal Article 1987

Autor: Bata, H.D. Singh, B.B. Singh, S.R. Ladeinde, T.A.O.

Aphid (Aphis craccivora Koch) is a major pest of cowpea [Vigna unguiculata (L.) Walp.] particularly in the drier regions of the tropics. It causes direct damage by feeding on the plants and also transmits viruses. Several sources of resistance to cowpea aphid have been identified and efforts are ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96332

Investigación en Agricultura
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Bata, H.D. ,  Singh, B.B. ,  Singh, S.R. ,  Ladeinde, T.A.O. ,  [Inheritance of resistance to aphid in cowpea] ,  Inheritance of resistance to aphid in cowpea
Book Chapter 1978

Autor: Singh, S.R. Emden, H.F. van Taylor, T.A.
Enlace original: https://cgspace.cgiar.org/handle/10568/98082

Investigación en Agricultura
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Singh, S.R. ,  Emden, H.F. van ,  Taylor, T.A. ,  [The potential for development of integrated pest management systems in cowpeas] ,  The potential for development of integrated pest management systems in cowpeas
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

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