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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 ...


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

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...


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

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...


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.)

In Italy cowpeas are grown primarily for green pod production. During 1986-88, 3 collecting missions covering the regions of Campania, Basilicata, Apulia and Calabria were mounted by the Germplasm Institute, Bari. A total of 177 seed samples were collected (147 of cowpeas and 30 of asparagus bean...


Laghetti, G.Padulosi, S.Hammer, K.Cifarelli, S.Perrino, P.[Cowpea (Vigna unguiculata [L.] Walp.) germplasm collection in southern Italy and preliminary evaluation]Cowpea (Vigna unguiculata [L.] Walp.) germplasm collection in southern Italy and preliminary evaluation
Carsky, R.Della Gatta, C.Piergiovanni, A.R.Ng, N.Q.Perrino, P.Carnovale, E.[Trypsin inhibitor levels in raw and cooked cowpea (Vigna unguiculata) seeds]Trypsin inhibitor levels in raw and cooked cowpea (Vigna unguiculata) seeds

The genus Vigna comprises seven subgenera and sixteen sections. Cowpea, Vigna tingnicnlatti (L.) Walp.. is an important grain legume crop in sub-Saharan Africa and belongs to the subgenus Vigna. section Ctitiang. Morphologically, cowpea genotypes appear very variable. However, a high level of gen...


Fatokun, C.A.Perrino, P.Ng, N.Q.[Wide crossing in African Vigna species]Wide crossing in African Vigna species

Flavonoid chemical markers together with other biochemical markers and/or morphological data can provide useful characters for defining species in Vigna genus. In this paper flavonoid HPLC fingerprints have been utilized to assess taxonomic relationships amongst species and accessions of Vigna.Wi...


Lattanzio, V.Cardinali, A.Linsalata, V.Perrino, P.Ng, N.Q.[A Chemosystematic study of the flavonoids of Vigna]A Chemosystematic study of the flavonoids of Vigna

Isozyme variation in 25 accessions of wild and cultivated Vigna unguiculata, 49 accessions of seven wild species belonging to section Vigna, and 11 accessions of V vexillata (subgenus Plectrotropis) was scored at 17 putative loci to assess genetic relationships within and among species. The wild ...


Sonnante, G.Piergiovanni, A.R.Ng, Q.N.Perrino, P.[Relationships of Vigna unguiculata (L) Walp., V. vexilata (L) A.Rich. and species of section Vigna based on isozyme variation]Relationships of Vigna unguiculata (L) Walp., V. vexilata (L) A.Rich. and species of section Vigna based on isozyme variation

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