Resultados de búsqueda - "Nigeria"

Yam breeding por Asiedu, Robert, Mignouna, H., Odu, B., Hughes, J.

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Methods for the detection of plant viruse diseases por Naidu, R., Hughes, J.

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Effect of planting date on severity of frogeye leaf spot and grain yield of soybeans por Akem, C., Dashiell, Kenton E.

“…Two susceptible (Samsoy 1 and TGx 849-313D) and one resistant (TGx 996-26E) soybean cultivars were used in field trials at Zonkwa, in the southern Kaduna state of Nigeria. Four field plantings were made at 14-day intervals from late May to mid0July. …”
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Amelioration de la production de ligname a travers la fertilisation minerale en zone de savene de Cote dIvoire por Soro, D., Dao, D., Carsky, R.J., Asiedu, Robert, Assa, A., Girardin, O.

“…Côte d'Ivoire is the second producer of yam after Nigeria with 2.8 millions tons produced per year. …”
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Agronomic performance of maize (Zea mays L.) breeding lines derived from a low nitrogen maize population por Kamara, A.Y., Kling, J.G., Menkir, A., Ibikunle, O.

“…Eighteen S1 lines of maize (Zea mays L.) derived from a low nitrogen tolerant pool and two inbred lines were evaluated for agronomic performance under moderate N conditions in the southern Guinea savannah of Nigeria. Generally, the breeding lines differed in yield, growth, vertical rootpulling resistance, N-uptake and N-use efficiency. …”
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Historical overview of breeding for durable resistance to maize streak virus for tropical Africa por Buddenhagen, I.W., Bosque Pérez, N.A.

“…At the International Institute of Tropical Agriculture (IITA) in Nigeria, an effort to incorporate streak resistance as an integral part of a holistic maize improvement program was begun in 1975. …”
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Reducing iron toxicity in rice with resistant genotype and ridge planting por Winslow, M., Yamauchi, M., Alluri, F., Masajo, T.

“…Grain yield responses to these factors were measured in field trials conducted .in an inland valley swamp in southeastern Nigeria over two seasons on a set of paddies ranging from nontoxic to severely toxic. …”
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Horizontal resistance: core to a research breakthrough to combat Striga in Africa por Kim, S.K.

“…Multilocation testing and subsequent seed multiplication of the resistant varieties was carried out by national programmes in Benin, Burkina Faso, Cameroon, the Ivory Coast, Ethiopia, Ghana, Nigeria, and Togo. Striga-resistant maize varieties show horizontal resistance not only to S. hermonthica, but also to another species, Striga asiatica. …”
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Calendar and monitored insecticide application for the control of cowpea pests por Afun, J., Jackai, L.E.N., Hodgson, C.

“…The trials were carried out at three locations in Nigeria — Ibadan (forest transition zone), Mokwa and Bida (in the southern Guinea savanna zone). …”
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Silicon disease resistance, and yield of rice genotypes under upland cultural conditions por Winslow, M.

“…Silicon deficiency limits rice (Oryza sativa L.) yield on highly weathered upland soils in West Africa and can increase susceptibility to some diseases. A study at Onne, Nigeria, examined responses of different genotypes to increasing Si supply under upland cultural conditions. …”
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The effects of time to first shoot removal on leaf vegetable quality in cassava ( Manihot esculenta Crantz) por Simwambana, M., Ferguson, T., Osiru, D.

“…A field trial was established on a sandy soil at IITA. Ibadan. Nigeria to investigate the effects of time to first shoot removal on cyanide content and chemical composition of leaves of two cassava clones: TMS 91934 and TMS 30572. …”
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Response of East African highland bananas to black Sigatoka and Cladosporium leaf speckle under tropical humid forest lowland conditions in West Africa por Pasberg-Gauhl, C., Gauhl, F.

“…The responses of 19 East African highland (EAH) banana cultivars (AAA and AA genomes) and two reference cultivars to black sigatoka (Mycosphaerella fijiensis Morelet) and Cladosporium leaf speckle (Cladosporium musae Mason) were studied in 1993 at Onne (southeastern Nigeria) under ecological conditions of the tropical humid forest lowlands. …”
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Influence of cereal legume rotation on soil chemical properties, crop yield and Striga control por Tarfa, B., Kureh, I., Kamara, A., Maigida, D.

“…Integrated soil management with grain legumes was studied at two villages (Ugwan Shamaki) and Tashan Kaya) in Kaduna State, northern Guinea Savanna zone of Nigeria (190 day growing season). Impacts of one year rotation of Soybean and Cowpea on soil chemical properties were compared with sole maize and maize-cowpea mixture. …”
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Policy Note: Policy Responses to Ensure Access to Water and Sanitation Services During COVID-19: Snapshots from the Environment for Development (EfD) Network por Amaechina, Ebele, Amoah, Anthony, Amuakwa-Mensah, Franklin, Amuakwa-Mensah, Salome, Bbaale, Edward, Bonilla, Jorge A., Brühl, Johanna, Cook, Joseph, Chukwuone, Nnaemeka, Fuente, David, y 9 autores más

“…This policy note provides a snapshot of water and sanitation measures implemented by governments in response to the COVID-19 pandemic in 14 countries in the Global South: Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Chile, Colombia, Ghana, Kenya, Nigeria, Panama, South Africa, Uganda and Vietnam.We find thatmany countries have taken action to stop utility disconnections due to non-payment. …”
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Technical Advisory Committee Fifty-Second Meeting, 11-17 June 1990: Report of the Meeting por CGIAR Technical Advisory Committee

“…Report of TAC 52 held at IITA in Ibadan, Nigeria, June 11-17, 1990, Alex McCalla presiding. …”
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Protocole de certification des semences de manioc au Togo por Olasanmi, B., Gmakouba, J., Djobo, S., Kpadenou, A.K., Salami, D., Djiwonou, K.E., Bona, K.A., Afanahin, K., Dzaka, E.Y., Bariyene, K.G., Abioye, O., Diallo, T.A., Olorode, A., Kinglo, H.S., Tchegueni, M., Akande, A.

“…L’élaboration du protocole de certification du matériel végétal (bouture) de manioc a été entreprise dans le cadre du projet de transformation agricole coordonné par l’Institut International d’agriculture tropicale (IITA) dans les États fédéraux du Nigeria et les régions du Togo vers la réalisation de la faim zéro (ZHP) dans le cadre des efforts visant à encourager la production et la commercialisation des boutures de qualité. …”
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Inheritance of shortday induced dwarfing in photesensitive cowpeas por Ishiyaku, M., Singh, B.

“…Two PS and two Photoinsensitive (PI) cowpea varieties were evaluated at IITA Kano Station, Nigeria (12003'N latitude and 8032'E longitude) at 4 planting dates. …”
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A paradigm shift to CO2 sequestration to manage global warming – With the emphasis on developing countries por Bhattacharyya, Siddhartha Shankar, Leite, Fernanda Figueiredo Granja Dorilêo, Adeyemi, Maxwell Adebayo, Sarker, AhadJahin, Cambareri, Gustavo Sebastián, Faverin, Claudia, Tieri, Maria Paz, Castillo Zacarías, Carlos, Melchor Martínez, Elda, Parra Saldivar, Roberto, Iqbal, Hafiz M.

“…This review summarizes a global perspective focusing on 5 developing countries (DC) (Bangladesh, Brazil, Argentina, Nigeria and Mexico) because of their importance on global C budget and on the agricultural sector as well as the impact produced by several global practices such as tillage, agroforestry systems, silvopasture, 4p1000 on CO2 sequestration. …”
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Nematode populations affect grapevine seedlings: Understanding the host-parasite interaction is critical for preventing negative effects por Ndifon, E.M.

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Evaluation of variability in Striga aspera, Striga hermonthica and their hybrids using morphological characters and random amplified polymorphic DNA markers por Aigbokhan, E.I., Berner, D.K., Musselman, L.J., Mignouna, Hodeba D.

“…In this study, crosses between the species were made using randomly selected morphologically typical parental plants collected from different locations in Nigeria. Genetic analysis of both species and their reciprocal F1hybrids were determined using cluster analysis of DNA pro Æles derived from genetic polymorphism (RAPD)-polymerase chain reaction (PCR) markers. …”
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