Search Results - S*

Post transcriptional gene silencing in transgenic plants by Carvalho Balieiro, Fabiano de, Boerjan, Wout, Ingelbrecht, I.L., Depicker, A., Inze, D., Montagu, M. van

“…These approaches require that the introduced gene is stably expressed in subsequent plant generations. …”
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Spiralling whitefly, Aleurodicus dispersus in Nigeria by Akinlosotu, T.A., Jackai, L.E.N., Ntonifor, N., Hassan, A., Agyakwa, C.W., Odebiyi, J., Akingbohungbe, A.E., Rossel, H.W.

“…The first observation was made on cassava in early 1992 at several locations in Ibadan. A survey carried out in January 1993 revealed that several genera, many of them important food and ornamental crops, are food plants of the insect.…”
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Changes in surface soil properties of a notilled tropical Alfisol due to intercropping maize, cassava and egusi melon by Hulugalle, N., Ezumah, H.C., Leyman, T.

Subjects: “…soil erosion…”
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Changes in soil properties of a newly cleared Ultisol due to establishment of hedgerow species in alley cropping systems by Hulugalle, N., Ndi, J.

Subjects: “…soil…”
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Longterm effects of land clearing methods, tillage systemsand cropping systems on surface soil properties of a tropical Alfisol in S. W. Nigeria by Hulugalle, N.

Subjects: “…soil…”
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Chartocerus hyalipennis (Hayat) (Hym: Signiphoridae), a gregarious hyperparasitoid on mealybugs (Hom.: pseudococcidae): biology and host range in west Africa by Goergen, Georg E., Neuenschwander, Peter

“…The biology and behaviour of the signiphorid Chartocerus hyaipennis (HAYAT) were studied in the laboratory on Epidinocarsis lopezi (DE SANTlS), a parasitoid of the cassava mealybug Phenacoccus manihoti MATlLE-FERRERO. …”
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Post transcriptional silencing of reporter transgenes in tobacco correlates whit DNA methylation by Ingelbrecht, I.L., Houdt, H. van, Montagu, M. van, Depicker, A.

“…Endogenous plant genes or transgenes can be silenced on introduction of homologous gene sequences. …”
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Strategic research in heterogenous mandate areas: an example from the West African Savanna by Smith, J., Weber, G.

Subjects: “…farming systems…”
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Effect of extracts from nine plant species found in Africa on the mycelial growth of Aspergillus flavus Link by Cardwell, K., Dongo, L.

“…Farmer survey conducted in 1991 and 1992 revealed that some farmer's combat storage moulds using locally available plants. …”
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Cassava based foods: how safe are they? by Bokanga, M., Otoo, E.

“…The consumption of cassava is sometimes associated with toxicity due to its cyanogenic potential (CNP). …”
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The genetics of resistance to cocoyam root rot blight complex disease in Xanthosoma sagittifolium(L.)Schott by Agueguia, A., Fatokun, C., Hahn, S.K.

“…The predominance of general combining ability over specific combining ability in the inheritance of resistance to CRRBC is an indication that efforts need not be wasted in the search for identification of heterotic combinations.…”
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Development and performance of tetraploid hybrids of plantain (Musa spp., AAB group) with black sigatoka resistance by Vuylsteke, D.R., Swennen, Rony L.

“…Seventeen of the selected hybrids had 'Calcutta 4' (Musa acuminate spp. …”
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Effect of maize variety and storage form on oviposition and development of the maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) by Vowotor, K.A., Bosque Pérez, N.A., Ayertey, J.

Subjects: “…storage…”
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Storage systems for maize ( Zea mays L.) in Nigeria from five agroecological zones by Udoh, J., Ikotun, T., Cardwell, K.

Subjects: “…storage…”
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Influence of a complex disease involving Praylenchus goodeyi and a nonpathogenic strain of Fusarium oxysporum on banana root health by Speijer, P., Sikora, R.A.

“…Necrosis and high density of P. goodeyi were associated in secondary roots of Sukali Ndizi independent of the addition of F. oxysporum spores to the inoculum suspension. …”
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Gender, work and population in sub-Saharan Africa by Adepoju, A., Oppong, C.

“…This volume looks at various aspects of the culturally prescribed roles of women and men - that is, gender issues - in sub-Saharan Africa and their relevance to the recording of facts upon which national policies and plans promoting the welfare of labour and national economic development are supposed to be based. …”
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Methods of or the dissemination of food processing technologies: the soybean example in Nigeria by Osho, S.M.

“…The IDRC Soybean Utilization Project, jointly implemented by IITA and national institutes in Nigeria, has been successful in developing several different uses for soybean in foods and disseminating this technology to rural and urban people. …”
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Future strategy for Musa improvement by Ortíz, R., Vuylsteke, D.R.

Subjects: “…cropping systems…”
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Attributes of cassava varieties desired by farmers in subSaharan Africa by Nweke, F., Dixon, A., Asiedu, Robert, Folayan, S.A.

Subjects: “…cropping systems…”
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Importance of cassava processing for production in subSaharan Africa by Nweke, F.I., Bokanga, M.

“…The paper shows that in the region, cassava is produced for sale. …”
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