Resultados de búsqueda - "International Institute of Tropical Agriculture"

Effect of detopping on disease incidence and symptom severity of African cassava mosaic virus disease (ACMD) on some newly developed cassava cultivars form landraces introgression por Ariyo, O., Atiri, G., Dixon, A.

“…Twenty-five cassava genotypes were exposed to natural infection by African cassava mosaic disease (ACMD) in plots at the International Institute of Tropical Agriculture (IITA), Ibadan (forest-savanna transition zone), Nigeria. …”
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Scientific animations without borders: cell-phone videos for cowpea farmers por Bello, J., Seufferheld, F., Agunbiade, T., Steele, L.D., Guillot, D., Ba, Malick N., Binso-Dabire, C.L., Baoua, I., N'Diaye, M., Tamo, Manuele, Pittendrigh, R.

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Identification of sources of resistance in cowpea mini core accessions to Aphis craccivora Koch (Homoptera: Aphididae) and their biochemical characterization por Togola, A., Boukar, O., Servent, A., Chamarthi, S., Tamo, Manuele, Fatokun, C.

“…This study was aimed at identifying resistant sources to A. craccivora within the cowpea mini core collection, a set of accessions from the largest world cowpea germplasm collection maintained at the International Institute of Tropical Agriculture (IITA). A total of 375 lines including 373 from IITA mini core collection, one resistant (TVu-801) and one susceptible (TVx-3236) checks were evaluated through artificial infestation in screening cages during the seedling stage. …”
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Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava por Rabbi, Ismail Y., Kayondo, S.I., Bauchet, Guillaume J., Yusuf, M., Aghogho, C.I., Ogunpaimo, K., Uwugiaren, R., Smith, I.A., Peteti, P., Agbona, A., Parkes, Elizabeth Y., Ezenwaka, L., Wolfe, M., Jannink, Jean-Luc, Egesi, Chiedozie N., Kulakow, Peter A.

“…We carried out a genome-wide association study (GWAS) using a panel of 5,310 clones developed at the International Institute of Tropical Agriculture - Nigeria. The population was genotyped at more than 100,000 SNP markers via genotyping-by-sequencing (GBS). …”
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Harvesting time and roasting effects on colour properties, xanthophylls, phytates, tannins and vitamin C contents of orange maize hybrid por Alamu, Emmanuel Oladeji, Maziya-Dixon, Busie, Menkir, A., Ogunlade, A.O., Olaofe, O.

“…The orange maize hybrids used for the study were obtained from the International Institute of Tropical Agriculture (IITA) diverse lines with high provitamin A (PVA) content. …”
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Simple sequence repeat-based mini-core collection for white Guinea yam (Dioscorea rotundata) germplasm por Pachakkil, B., Yamanaka, S., Girma Tessema, G., Matsumoto, R., Tamiru-Oli, M., Bhattacharjee, Ranjana, Abberton, Michael T., Muranaka, S., Asiedu, R., Terauchi, R., Takagi, H.

“…For the efficient utilization of D. rotundata genetic resources, this study was aimed at developing a mini‐core collection from a core collection of 447 D. rotundata accessions maintained at the International Institute of Tropical Agriculture (IITA). Accordingly, a D. rotundata mini‐core collection representing 102 accessions was selected using 16 simple sequence repeat (SSR) markers, retaining ∼98% of the SSR allelic diversity of the base collection. …”
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Genetic gains from selection for drought tolerance during three breeding periods in extra-early maturing maize hybrids under drought and rainfed environments por Badu-Apraku, Baffour, Obisesan, O., Adeoti, A., Obeng-Bio, E.

“…Sixty extra-early maturing hybrids developed by the International Institute of Tropical Agriculture (IITA), Ibadan, during three breeding periods: (2008–2010, 2011–2013, and 2014–2016) were assessed under managed drought and rainfed conditions across 14 environments in Nigeria to estimate the genetic gains in grain yield using linear regression analysis. …”
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CCAFS Climate Smart Cocoa Baseline Survey Report-Ghana (Introduction of stepwise climate smart cocoa practices to farmers) por Dalaa, Mustapha Alasan, Saeed, Abdul-Razak, Deffor, Eric Worlanyo, Holzer, Manuel, Kofituo, Rich Kofi, Asare, Richard

“…The International Institute of Tropical Agriculture (IITA) and the Rainforest Alliance (RA) have developed improved practices for climate-smart agriculture in the cocoa sector, summarized under the term climate-smart cocoa (CSC) and is carried out as part of the CGIAR research program on Climate Change, Agriculture and Food Security (CCAFS). …”
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Impact of Stepwise Climate-smart cocoa practices on beneficiary farmers-under CCAFS project in Ghana (Project endline) por Dalaa, Mustapha Alasan, Saeed, Abdul-Razak, Deffor, Eric Worlanyo, Kofituo, Rich Kofi, Asare, Richard

“…This report is an end-line study report of the International Institute of Tropical Agriculture (IITA) project titled “Climate Smart Cocoa and its influence on voluntary standards and Impact lending in West Africa”. …”
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Morphological and Phenological Response of African Rice (Oryza glaberrima Steud.) under Different Hydrological Conditions por Montcho, D., Futakuchi, K., Agbangla, C., Semon, M., Dieng, I., Sie, M.

“…The trial was conducted at the experimental field of the International Institute of Tropical Agriculture in Ibadan during the wet seasons in 2009 and 2010. …”
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Cross compatibility in intraspecific and interspecific hybridization in yam (Dioscorea spp.) por Mondo, J., Agre, A.P., Edemodu, A., Asiedu, R., Akoroda, M.O., Asfaw, A.

“…Cross-compatability was analyzed at the individual genotype or family level using historical data from crossing blocks and seedling nurseries from 2010 to 2020 at the International Institute of Tropical Agriculture (IITA). The average crossability rate (ACR) was lower in interspecific crossing combinations (6.1%) than intraspecific ones (27.6%). …”
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IITA’s genebank, cowpea diversity on farms, and farmers’ welfare in Nigeria por Kouakou, A.G., Ogundapo, A.T., Smale, M., Jamora, Nelissa, Manda, J., Abberton, Michael T.

“…Although the genebank of the International Institute of Tropical Agriculture (IITA) has contributed to cowpea conservation and improvement efforts by breeding programs internationally and in Nigeria, few studies have attempted to link the genebank to the management of cowpea genetic resources (CGRs) on farms. …”
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Assessment of the genetic structure and diversity of soybean (Glycine max L.) germplasm using diversity array technology and single nucleotide polymorphism markers por Shaibu, A.S., Ibrahim, H., Miko, Z.L., Mohammed, I.B., Mohammed, S.G., Yusuf, H.L., Kamara, A., Omoigui, L., Karikari, B.

“…The objective of this study was to determine the genetic diversity and population structure of 281 International Institute of Tropical Agriculture (IITA) soybean accessions using diversity array technology (DArT) and single nucleotide polymorphism (SNP) markers for the efficient utilization of these accessions. …”
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Genetic diversity and inter-trait relationships among maize inbreds containing genes from Zea diploperennis and hybrid performance under contrasting environments por Akaogu, I.C., Badu-Apraku, Baffour, Gracen, V.E., Tongoona, Pangirayi, Gedil, Melaku A, Unachukwu, N., Offei, S., Dzidzienyo, D., Hearne, S., Garcia-Oliveira, A.L.

“…The base index of the International Institute of Tropical Agriculture (IITA) identified 50% of the inbred lines as Striga resistant. …”
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Implications of qualitative trait diversity for future cowpea improvement and genetic resource conservation por Mekonnen, T.W., Mekbib, Firew, Amsalu, B., Gedil, Melaku A, Labuschagne, Maryke T.

“…The highest (H'=0.77) and the lowest (H'=0.39) diversity values were obtained from the unknown category and the International Institute of Tropical Agriculture (IITA), respectively. …”
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Data management in multi-disciplinary African RTB crop breeding programs por Agbona, A ., Peteti, P., Teeken, Béla, Olaosebikan, O., Bello, A.A., Parkes, Elizabeth Y., Rabbi, I.Y., Mueller, L., Egesi, Chiedozie N., Kulakow, Peter A.

“…The International Institute of Tropical Agriculture (IITA), working on the roots, tubers and banana (RTB) crops like cassava, yam, banana and plantain has deployed a FAIR-compliant (Findable, Accessible, Interoperable, Reusable) database; BREEDBASE. …”
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Transforming yam seed systems in west Africa por Maroya, N., Balogun, M., Aighewi, B., Mignouna, Djana B., Kumar, P. Lava, Asiedu, R.

“…The Yam Improvement for Income and Food Security in West Africa (YIIFSWA) project of the International Institute of Tropical Agriculture (IITA) developed the capacity of National Agricultural Research Institutes (NARIs) in their use of standardized Temporary Immersion Bioreactor (TIB) and Vivipak (VP) systems for high-ratio propagation and post-flask handling of yam breeder seed plantlets. …”
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Roundtable Convening on Women and Youth SMEs in Agribusiness por The Rallying Cry

“…The International Institute of Tropical Agriculture collaborated with The Rallying Cry to understand the challenges faced by women- and youth-led agribusinesses in Zambia. …”
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Biological control of the banana aphid for sustainable management of banana bunchy top disease in sub-Saharan Africa. IITA-USAID Linkage Program Final Technical Report; IITA projec... por Messing, R., Hanna, R., Kumar, P. Lava

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Genetic enhancement of early and extra-early maturing maize for tolerance to low-soil nitrogen in sub-Saharan Africa por Badu-Apraku, B., Fakorede, M.A.B., Annor, B., Adu, G.B., Obeng-Bio, E., Abu, P., Bhadmus, O.A., Nelimor, C.

“…To increase and improve food crop production and crop management for sustainable agricultural development, the Maize Improvement Program (MIP) of the International Institute of Tropical Agriculture (IITA) has, in partnership with national and international organizations, focused attention on the genetic improvement of maize (Zea mays L.) for tolerance/resistance to abiotic and biotic stresses constraining maize grain production. …”
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