Search Results - "Nigeria"

IPM-omics: from genomics to extension for integrated pest management of cowpea by Agunbiade, T.A., Steele, L., Coates, B., Gassmann, A., Margam, V., Ba, Malick N., Dabiré-Binso, C., Baoua, I., Bello-Bravo, Julia, Seufferheld, F., Sun, W., Tamò, Manuele, Pittendrigh, Barry Robert

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Phenotypic evaluation of a multi-location cassava breeding trial to improve a genomic selection training population by Uchendu, U.K., Parkes, Elizabeth Y., Aina, O.O., Akoroda, M.O., Kulakow, Peter A.

“…Thirty white fleshed cassava genotypes derived from crosses between genotypes from West Africa x East Africa and West Africa x Latin America were evaluated in five major agroecological zones in Nigeria during 2012-2013. The trials were established in a randomized complete block design with four replications. …”
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Physical, chemical and sensory properties of cassava (Manihot esculenta) – sweet potato (Ipomoea batatas) gari by Karim, O.R., Adebanke, B.M., Akintayo, O.A., Awoyale, W.

“…Food safety is one of the problems facing sub-Sahara African countries like Nigeria. The use of wholesome indigenous crops and improved methods of production of major foods is a way forward. …”
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Improvement in grain yield and low-nitrogen tolerance in maize cultivars of there eras by Badu-Apraku, Baffour, Fakorede, M.A.B., Annor, B., Talabi, A.O.

“…Fifty-six extra-early open-pollinated maize cultivars developed during three breeding eras, 1995–2000, 2001–2006 and 2007–2012, were evaluated under low N and high soil nitrogen (high N) at two locations in Nigeria in 2013 and 2014, to investigate the genetic gains in grain yield and identify outstanding cultivars. …”
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Flowering intensity in white yam (Dioscorea rotundata) by Hamadina, E.I., Craufurd, Peter Q., Asiedu, Robert

“…Sex ratios, the proportion of plants that had flower buds and open flowers, and the number of flowers or spikes was recorded in one male (TDr 131) and one female (TDr 99-9) clone of white yam grown in the field in Nigeria at three locations and at different sowing dates. …”
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Legumemaize rotation and nitrogen effects on weed performance in the humid and subhumid tropics of West Africa by Ekeleme, F., Fontem Lum, A., Schulz, S., Chikoye, David

“…The objectives among others were to assess the impact of nitrogen, natural bush fallow, and legume−maize rotations on weed growth and species composition in the forest/savanna transition zone (Ibadan) and northern Guinea savanna (Zaria) in Nigeria. At both locations, the experiment was arranged as a split-plot design. …”
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Novel sources of resistance to Fusarium stalk rot of maize in tropical Africa by Afolabi, C.G., Ojiambo, P.S., Ekpo, E.J., Menkir, A., Bandyopadhyay, Ranajit

“…Fifty inbred lines and four checks from the breeding program of the International Institute of Tropical Agriculture were evaluated in field trials at Ikenne and Ibadan, Nigeria in 2003 and 2004 to identify new sources of resistance to stalk rot caused by Fusarium verticillioides. …”
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Rust resistant soybean breeding lines at the International Institute of Tropical Agriculture by Tefera, H., Bandyopadhyay, Ranajit

“…All soybean cultivars grown in Nigeria are highly susceptible to rust (Phakopsora pachyrhizi), a disease that can cause up to 60-80% seed losses. …”
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Gender and social targeting in plant breeding by Orr, Alastair, Cox, Cindy M., Ru, Yating, Ashby, Jacqueline A.

“…We use the example of cassava in Nigeria to illustrate how these datasets can help breeding programs incorporate gender into their customer profiles.…”
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Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas by Kamara, A.Y., Menkir, A., Omoigui, L.O., Kureh, I.

“…The Guinea savannas of Nigeria have a high potential for the production of maize because of favorable environmental conditions. …”
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Genetic analysis of performance of maize inbred lines selected for tolerance to drought under low nitrogen by Meseka, S.K., Menkir, A., Ibrahim, A.E., Ajala, S.O.

“…The parental lines and hybrids were evaluated under both low and high N in separate trials side by side during the rainy season at one location in Nigeria for two years. Most of the hybrids with at least one drought tolerant parent had higher yields than those having two drought susceptible parents. …”
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Estimates of genetic variances in Striga resistant extraearlymaturing maize populations by Badu-Apraku, Baffour

“…S1 families derived from cycle 3 of each population were evaluated at Mokwa and Abuja in Nigeria in 2003 under artificial Striga hermonthica infestation. …”
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Assessment of testcross performance and genetic diversity of yellow endosperm maize lines derived from adapted x exotic backcrosses by Menkir, A., Olowolafe, M.O., Ingelbrecht, I.L., Fawole, I., Badu-Apraku, Baffour, Vroh Bi, Irie

“…Fifty BC1F4 lines derived from these backcrosses and the recurrent parent were crossed to a common inbred tester (L4001) to form testcrosses, which were evaluated at eight environments in Nigeria. Testcrosses of the BC-derived lines differed significantly for grain yield and other agronomic traits. …”
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Utilization of phosphorus from different sources by genotypes of promiscuous soybean and cowpea in a lowphosphorus savanna soil by Nwoke, O.C., Diels, J., Abaidoo, Robert C., Sanginga, N.

“…The differential ability of genotypes of soybean (Glycine max) and cowpea (Vigna unguiculata) to thrive under low-phosphorus (P) conditions by utilising P from sources with low solubility was assessed in a greenhouse study with a low-P savanna soil collected from a research field in Fashola, south-western Nigeria. The P sources added (21 mg P kg-1soil) were calcium phosphate (Ca-P), iron phosphate (Fe-P), aluminium phosphate (Al-P), and triple superphosphate (TSP). …”
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Growth and distribution of maize roots under nitrogen fertilization in plinthite soil by Oikeh, S., Kling, J., Horst, W., Chude, V., Carsky, R.J.

“…Two rainfed field experiments were conducted in Samaru, Nigeria in the 1993 and 1994 growing seasons with five maize cultivars under various rates of nitrogen fertilizer. …”
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Phosphorus use efficiency and nitrogen balance of cowpea breeding lines in a low P soil of the derived savanna zone in West Africa by Sanginga, N., Lyasse, O., Singh, B.

“…Differences in growth, nodulation and arbuscular mycorrhizal fungi (AMF) root infection among recent cowpea breeding lines from IITA were examined at low and high P levels in pot (94 lines) and field experiments (43 lines) at Fashola in the derived savanna zone of Nigeria. Based on their growth performance, these lines were subdivided into 5 groups: (i) poor performance under low and high P conditions; (ii) good performance under low P and poor performance under high P; (iii) intermediate performance under high and low P; (iv) good performance under high and low P conditions; and (v) good performance under high P and poor performance under low P. …”
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Influence of fallow type and landuse intensity on weed seed rain in a forest/savanna transition zone by Ekeleme, F., Okezie Akobundu, I., Isichei, A., Chikoye, David

“…Weed seed rain was monitored in field plots under three fallow types and four land-use intensities in Ibadan, Nigeria, in 1994 and 1995. The fallow types were natural bush, planted Leucaena leucocephala, and Pueraria phaseoloides. …”
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Development and commercialization of the green muscle biopesticide by Douthwaite, Boru, Langewald, J., Harris, J.

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Effects of ALSinhibitor herbicides, crop sequence, and fertilization on natural soil suppressiveness to Striga hermonthica by Emechebe, A., Berner, D., Lagoke, S.T.O., Ahonsi, M.

“…Control efforts at the International Institute of Tropical Agriculture (IITA), Nigeria, focus on developing integrated S. hermonthica management (ISM) options such as legume-cereal rotation, use of host–plant resistance, soil-based biological control exploiting enhancement of naturally occurring biotic soil suppressiveness, and use of acetolactate synthase (ALS)-inhibiting herbicides as host–crop seed treatments. …”
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Impact of natural, planted (Pueraria phaseoloides, Leucaena leucocephala) fallow and landuse intensity on weed seedling emergence pattern and density in cassava intercropped with m... by Ekeleme, F., Chikoye, David, Akobundu, I.O.

“…This study assessed the composition, pattern and magnitude of seedling emergence of weed communities of a maize/cassava association in three types of fallow and four landuse intensities (continuous cropping or zero-fallow, 1 year of cropping followed by 1, 2, and 3 years fallow) over a 6-year period in Ibadan, Nigeria, West Africa. The study was carried out on a sandy loam (oxic paleustaff and psammentic ustorthent), <2% organic matter, and pH 6.2. …”
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