In Aug. 1990, S. sclerotiorum was isolated from soyabean cultivars TGx 1440-1E and TGx 1627-3F at Bukuru, Plateau, Nigeria. Disease symptoms are described. This is the first report of Sclerotinia stem rot of soyabean in Nigeria and West Africa.
Akem, C.N.
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Dashiell, Kenton E.
,
[Sclerotinia stem rot caused by Sclerotinia Sclerotiorum on soybeans in Nigeria]
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Sclerotinia stem rot caused by Sclerotinia Sclerotiorum on soybeans in Nigeria
Attention is being paid to improving the N2 fixation of promiscuous nodulating soybeans in an attempt to develop sustainable cropping systems in the moist savanna. There is however a dearth of reliable estimates of N2 fixation by these promiscuous soybeans and hardly any quantitative information ...
Sanginga, N.
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Dashiell, Kenton E.
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Okogun, J.A.
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Thottappilly, G.
,
[Nitrogen fixation and N contribution by promiscuous nodulating soybeans in the southern Guinea savanna of Nigeria]
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Nitrogen fixation and N contribution by promiscuous nodulating soybeans in the southern Guinea savanna of Nigeria
Freely nodulating soybean genotypes vary in their phosphorus (P) uptake and P-use efficiency (PUE) in low-P soils. Understanding the genetic basis of these genotypes’ performance is essential for effective breeding. To study the inheritance of PUE, we conducted crosses using two high-PUE genotype...
Uzokwe, Veronica N.E.
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Asafo-Adjei, B.
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Fawole, B.
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Abaidoo, R.C.
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Odeh, I.
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Ojo, D.K.
,
Dashiell, Kenton E.
,
Sanginga, Nteranya
,
[Generation mean analysis of phosphorus-use efficiency in freely nodulating soybean crosses grown in low-phosphorus soil]
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Generation mean analysis of phosphorus-use efficiency in freely nodulating soybean crosses grown in low-phosphorus soil
The ability of soybean to nodulate with a wide range of indigenous bradyrhizobia has been used in a breeding programme since 1997 in Nigeria. As far as is known, these indigenous bradyrhizobia strains have not been tested for compatibility and effectiveness with recent selections from a breeding ...
Sanginga, P.
,
Thottappilly, G.
,
Dashiell, Kenton E.
,
[Effectiveness of rhizobia nodulating recent promiscuous soyabean selections in the moist savanna of Nigeria]
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Effectiveness of rhizobia nodulating recent promiscuous soyabean selections in the moist savanna of Nigeria
Nutrients of soybean stovers (SBS) from three soybean varieties: TGx 923-2E (SBS1), TGx 1660-19F (SBS2) and TGx 1019-2EN (SBS3) whole plant (WP) and leaf-pruned stem (LPS) were compared, and these SBS (WP and LPS) were offered to West African dwarf sheep to measure voluntary dry matter (DM) intak...
Dada, S.A.O.
,
Akinsoyinu, A.O.
,
Smith, Jimmy W.
,
Dashiell, Kenton E.
,
[The effect of leaf-pruning on nutrient intake and in vivo digestibility of soybean stovers by sheep]
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The effect of leaf-pruning on nutrient intake and in vivo digestibility of soybean stovers by sheep
A digestibility study was conducted with West African Dwarf (WAD) sheep offered four varieties of soybean stovers (SBS) basal diets, TGx 1019-2EN (SBS1), TGx 1448-2E (SBS2), TGx 1660-19F (SBS3) and TGx 932-2E (SBS4) and a growth study with WAD sheep offered three varieties of soybean stovers SBS1...
Dada, S.A.O.
,
Adeneye, J.A.
,
Akinsoyinu, A.O.
,
Smith, Jimmy W.
,
Dashiell, Kenton E.
,
[Performance of sheep fed soybean stover and cassava crumb based diets]
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Performance of sheep fed soybean stover and cassava crumb based diets
With limited access to P fertilizers, soybean (Glycine max (L.) Merr.) varieties cultivated in the moist savanna zone of West Africa should use P as efficiently as possible. Field trials were conducted on the effect of P application on grain yield per unit P accumulated (physiological efficiency ...
Ogoke, I.
,
Togun, A.
,
Dashiell, Kenton E.
,
[Soybean phosphorus-use efficiency in the moist Savanna of West Africa]
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Soybean phosphorus-use efficiency in the moist Savanna of West Africa
Striga hermonthica is a serious parasite of cereals in most of the semi-arid savanna zone of West Africa, causing substantial yield loss. It has been observed that some soybean cultivars are capable of stimulating germination of S. hermonthica seed, which would reduce the seed bank in the soil. T...
Carsky, R.J.
,
Berner, B.D.
,
Oyewole, K.
,
Dashiell, Kenton E.
,
Schulz, S.
,
[Reduction of Striga hermonthica parasitism on maize using soybean rotation]
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Reduction of Striga hermonthica parasitism on maize using soybean rotation
Most impact studies of agricultural technologies use economic models, with little direct attention being paid to the actual impact on the lives of resource-poor farmers. This paper uses a social impact assessment (SIA) framework to examine the level of adoption and impact of soybean on farm house...
Sanginga, P.
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Adesina, A.A.
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Manyong, Victor M.
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Otite, O.
,
Dashiell, Kenton E.
,
[Social impact of soybean in Nigerias southern Guinea savanna]
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Social impact of soybean in Nigerias southern Guinea savanna
Three soybean [Glycine max (L.) Merr.]cultivars (Samsoy 1, TGx 1025-12E and TGx 996-26E) were evaluated for yield losses resulting from frogeye leaf spot caused by Cercospora sojina Hara. Replicated field plots were established at two locations in Nigeria that have a high natural infestation of C...
Dashiell, Kenton E.
,
Akem, C.N.
,
[Yield losses in soybeans from frogeye leaf spot caused by Cercospora sojina]
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Yield losses in soybeans from frogeye leaf spot caused by Cercospora sojina