List of STMA supported publications for sub-Saharan Africa for 2019

Posted on Eastern Africa News, Eastern Africa News, Eastern Africa Publications, News, News & Media, News release, Publications, Published Journals, Reports, Research News, Research Publication, Seed System News, Seed System Publication, Southern Africa News, Southern Africa Publications, Southern Africa Publications, West Africa News, West Africa Publications, May 14, 2020

Amondo, E., Simtowe, F., Rahut, D.B., Erenstein, O., 2019. Productivity and production risk effects of adopting drought-tolerant maize varieties in Zambia. International Journal of Climate Change Strategies and Management 11, 570-591. https://doi.org/10.1108/IJCCSM-03-2018-0024

Awata, L. A. O., Ifie, B. E., Tongoona, P., Danquah, E., Jumbo, M. B., Gowda, M., Marchelo-D’ragga, P. W., Sitonik, C., & Suresh, L. M. (2019). Maize lethal necrosis and the molecular basis of variability in concentrations of the causal viruses in co-infected maize plant. Journal of General and Molecular Virology, 9(1), 1-19.

Awondo, S.N., Kostandini, G., Setimela, P., Erenstein, O., in press. Multi-Site Bundling of Drought Tolerant Maize Varieties and Index Insurance. Journal of Agricultural Economics. https://doi.org/10.1111/1477-9552.12344

Buchaillot MB, Gracia-Romero A, Vergara-Diaz O, Zaman-Allah M, Tarekegne A, Cairns JE, Prasanna BM, Araus JL, Kefavuer SC. 2019. Evaluating maize genotype performance under low nitrogen conditions using RGB UAV phenotyping techniques. Sensors 19, 1815.

Chaikam V, Gowda M, Nair SK, Melchinger AE, Boddupalli PM. Genome-wide association study to identify genomic regions influencing spontaneous fertility in maize haploids. Euphytica. 2019 Aug 1;215(8):138.

Chaikam V, Molenaar W, Melchinger AE, Boddupalli PM. Doubled haploid technology for line development in maize: technical advances and prospects. Theoretical and Applied Genetics. 2019:1-7.

Chaikam, V., Gowda, M., Nair, S.K. et al. (2019) Genome-wide association study to identify genomic regions influencing spontaneous fertility in maize haploids Euphytica (2019) 215: 138. https://doi.org/10.1007/s10681-019-2459-

Katengeza, S.P., Holden, S.T., Lunduka, R.W., 2019. Adoption of Drought Tolerant Maize Varieties under Rainfall Stress in Malawi. Journal of Agricultural Economics 70, 198-214. https://onlinelibrary.wiley.com/doi/abs/10.1111/1477-9552.12283

Lunduka, R.W., Mateva, K.I., Magorokosho, C., Manjeru, P., 2019. Impact of adoption of drought-tolerant maize varieties on total maize production in south Eastern Zimbabwe. Climate and Development 11, 35-46. http://dx.doi.org/10.1080/17565529.2017.1372269

Nair S, Chaikam V, Gowda M et al. Genetic dissection of maternal influence on in vivo haploid induction in maize . The Crop Journal. 2019 (in press)

Simtowe, F., Amondo, E., Marenya, P., Rahut, D., Sonder, K., Erenstein, O., 2019. Impacts of drought-tolerant maize varieties on productivity, risk, and resource use: Evidence from Uganda. Land Use Policy 88, 104091. https://doi.org/10.1016/j.landusepol.2019.104091

Simtowe, F., Marenya, P., Amondo, E., Worku, M., Rahut, D.B., Erenstein, O., 2019. Heterogeneous seed access and information exposure: implications for the adoption of drought-tolerant maize varieties in Uganda. Agricultural and Food Economics 7, 15. https://doi.org/10.1186/s40100-019-0135-7

Sitonik, C., Suresh, L.M., Beyene, Y. et al. (2019) Theor Appl Genet (2019) 132: 2381. Genetic architecture of maize chlorotic mottle virus and maize lethal necrosis through GWAS, linkage analysis and genomic prediction in tropical maize germplasm https://doi.org/10.1007/s00122-019-03360-x

Tigist Mideksa Damesa, Jens Möhring, Manje Gowda, Yoseph Beyene, Kassa Semagn, Hans-Peter Piepho, 2019 Comparison of weighted and unweighted stage-wise analysis for genome-wide association studies and genomic selection – Crop Science

Wegary, D., Teklewold, A., Prasanna, B.M. et al. (2019) Molecular diversity and selective sweeps in maize inbred lines adapted to African highlands. Sci Rep 9, 13490 (2019) https://doi:10.1038/s41598-019-49861-z

Wender et al 2019, Performance and Yield Stability of Maize Hybrids in Stress-prone Environments in Eastern Africa,  The Crop Journal (Accepted)

Araus JL, Kefauver SC, Zaman-Allah M, Olsen, Cairns JE. 2018. Phenotyping: New Crop Breeding Frontier. In: R. A. Meyers (ed.), Encyclopedia of Sustainability Science and Technology, Springer Science+Business Media, LLC, part of Springer Nature 2018. https://doi.org/10.1007/978-1-4939-2493-6_1036-1

Das B, Atlin GN, Olsen M, Burgueño J, Tarekegne A, Babu R, Ndou E, Mashingaidze K, Moremoholo L, Ligeyo D, Matemba-Mutasa R, Zaman-Allah M, San Vicente, Prasanna BM, Cairns JE. 2018. Identification of low N tolerant donors for maize breeding in sub-Saharan Africa. Euphytica 215, 80.

Yuan Y, Cairns JE, Babu R, Gowda M, Makumbi D, Magorokosho C, San Vicente F, Olsen M, Prasanna BM, Lu Y, Zhang Y. 2018. Genome-wide association mapping and genomic prediction analyses reveal the genetic architecture of grain yield and flowering time under drought and heat stress conditions in maize. Frontiers in Plant Science 9:1919.

Teklewolda H., Adam, R., Marenya, P. What explains the gender differences in the adoption of multiple maize varieties? Empirical evidence from Uganda and Tanzania. 2020. World Development Perspectives. https://doi.org/10.1016/j.wdp.2020.100206


Seeing is believing: demo farms accelerate adoption of stress tolerant maize

Posted on dtma, Eastern Africa News, Eastern Africa News, Eastern Africa Publications, Media&Stories, News, News & Media, News & Stories, News articles, News release, PhotoStories, Publications, Research News, February 19, 2020

Joshua Masinde

Over 400 farmers from Manyatta in Embu County were on February 7, 2020, invited to a demonstration farm to witness the performance of various high yielding, early to medium maturing, drought tolerant maize varieties. Such occasions aim to encourage them to adopt varieties whose traits they preferred the most.

Some of the farmers who showed up for the field day in Embu County on February 7, 2020. Image-Joshua Masinde/CIMMYT.

They were invited by the Seed Trade Association of Kenya (STAK), with the support of the International Maize and Wheat Improvement Center (CIMMYT) in continuation of the work started under the Drought Tolerant Maize for Africa Seed Scaling (DTMASS) project, which was later succeeded by the Stress Tolerant Maize for Africa (STMA) initiative. In attendance were officials from the Embu County government led by its minister in charge of agriculture, Jamleck Muturi, as well as ten seed firms, some of who use CIMMYT’s germplasm for seed propagation and marketing.

A seed company representative explains to the farmers the merits of the variety on this plot. Image-Joshua Masinde/CIMMYT.

Farmers such as 29-year old Nancy Wawira not only learnt of best agronomic practices, but also identified a high yielding, drought tolerant and early maturing variety she hopes to plant on her farm next season.

Nancy Wawira admiring a maize crop with double cobbers in one of the demo plots. Image-Joshua Masinde/CIMMYT.

For others like 52-year-old John Njiru, a father of four children, a higher-yielding variety with a lot of foliage, which remains green even after the maize cob has dried, is what he came looking for. The green maize foliage is significant income source due to demand from livestock keepers. He also feeds his own livestock with it, making substantial savings on animal feed expenditure.

John Njiru on a demo plot whose variety he likes. Image-Joshua Masinde/CIMMYT.

Latest STMA Bulletin is out

Posted on annual meetings, Eastern Africa News, Media&Stories, News & Media, Newsletter, Newsletters, Publications, Southern Africa News, October 17, 2019

Discover the latest from the Stress Tolerant Maize for Africa (STMA) initiative. This issue talks about product profiling, costing of maize breeding, highlights of CIMMYT’s Kenya Annual Partner Days and portraits of Kenyan farmers who have adopted stress-tolerant maize varieties.  READ HERE

Farmers adopting drought tolerant Maize in Makueni county, Kenya

Posted on Eastern Africa News, Media&Stories, News, News & Media, News & Stories, News articles, News release, Press room, Seed System News, October 14, 2019

Swedish journalists Eric Abel and Anna Liljemalm who are writing a book on climate change and seed visited the Stress Tolerant Maize for Africa project in Kenya from Sept. 9-11, 2019.

Journalists from Sweden in action to understand how maize breeding can help Kenyan farmers adapt to climate change. Photo : CIMMYT/Bossuet

We met some farmers who adopted drought tolerant maize hybrid SAWA from Dryland Seeds Ltd (DSL) in drought-prone Makueni county.

Dolly Muatha is a 49 years-old demo farmer with four children.

Dolly Muatha, demo farmer in Makueni county shows her maize grain surplus.
Photo: CIMMYT/Masinde

Because her fields are well placed near the road, she has benefited for the last three years from DSL support to demonstrate the yield potential of SAWA DT maize in this terraced landscape.

Dolly likes SAWA ‘’because it produces 2 to three beautiful cobs and it matures early. In case rains stop when the maize is at knee height, even before tassel and silks form, that is where you see its potential compared to non-drought tolerant varieties.’’

Alex Somba, his wife and son in front of their house, near Wote. Photo: CIMMYT/Masinde

Alex Somba 45 year-old farmer near Wote saw how SAWA performed at Muatha’s farm and tried it out in 2017.

He usually practices dry planting from October 1, as rains usually start around the third or end October, until end of the year.

‘’SAWA beats other popular hybrids because of its early maturity and drought tolerance. It resists well to Grey Leaf Spot and grain stores well, resists weevil.’’

‘’If rains start end of October and after 2 weeks of rains there is a dry spell of 2 weeks, other varieties will perform badly whereas SAWA copes relatively well with such erratic rains patterns,’’ he added.

Providing good agronomic advice to the farmers is important to benefit fully from new varieties. Joyce, DSL field officer pointed out that ‘’ a good advice I usually give for farmers like Alex is optimum crop spacing.’’ For better yields, she would advise to practice 20cm x 30 cm spacing, one seed at a time. Traditionally farmers would put up to 5 seeds per planting hole, which will generate small cobs and much lower yields.

Resilience and livelihoods improved for 3.5 million African farmers now planting stress tolerant maize varieties

Posted on annual meetings, Media&Stories, News, News & Media, News & Stories, Press room, Southern Africa News, May 24, 2019

The Stress Tolerant Maize for Africa (STMA) project held its annual meeting May 7-9, 2019 in Lusaka, Zambia to discuss the achievements of the past year and priorities going forward.

Farmer participatory evaluation of STMA hybrids compared to popular varietis

STMA Project Leader Cosmos Magoroksho recalled what STMA project launched in 2016 is aiming at “Maize is grown on 30 million hectares in SSA, and more than 208 million farmers depend on it as a staple crop. However, average maize yields in SSA are among the lowest in the world. STMA is a multi-stakeholder project designed to develop, test and deliver improved maize varieties that can mitigate the combined effects of multiple stresses in farmer fields and provide reliable decent yields even in challenging conditions like drought or low soil fertility.”

“STMA proved it is possible to combine multiple stress tolerance and still get good yields. One of the greatest aspects of STMA are great partnerships which have only grown stronger through the years. We are now the proud partners of over 100 seed companies,” said B.M. Prasanna, director of the CIMMYT Global Maize Program and the CGIAR Research Program on Maize (MAIZE), in his keynote address. 

CIMMYT and partners across SSA are working together in the fight against challenges such as drought, maize lethal necrosis (MLN) and fall armyworm (FAW) using innovative technologies such as doubled haploids, marker assisted back crossing, and germplasm screening to develop improved stress tolerant maize for farmers. The efforts are paying off—in 2018, 3.5 million smallholder farmers planted stress tolerant maize varieties in 10 African countries, Prasanna said.

STMA Annual review participants visited ZAMSEED – Lusaka 8 May 2019

On May 8, participants visited local seed company partners, namely Afriseed, Zamseed and QualiBasic Seed to learn more about the opportunities and challenges of producing stress tolerant maize seed for smallholder farmers. Afriseed CEO Stephanie Angomwile discussed her business strategy and passion for agriculture with participants. She expressed her gratitude for the support CIMMYT has provided the company, including access to drought tolerant maize varieties as well as capacity development opportunities for her staff.

At QualiBasic Seeds (QBS), CIMMYT staff and partners were given the opportunity to learn and ask questions about the seed multiplication process in Zambia and the importance of high quality, genetically pure foundation seeds for seed companies.

Bhola Nath Verma, principal crop breeder at ZAMSEED explained climate change has visible impact on Zambian maize sector as the main maize growing basket moved 500 km North due to increased drought. Verma values the partnership with STMA as he can source very drought-tolerant breeding material from CIMMYT and IITA allowing him to develop very early varieties that escape drought and bring much needed yield stability to farmers in Zambia, Angola, DRC, Botswana and Tanzania.

Maize Youth Innovators 2019

The meeting concluded with an awards ceremony for the winners of the 2019 MAIZE Youth Innovators Awards – Africa, established by MAIZE in collaboration with the Young Professionals for Agricultural Development (YPARD). These awards recognize the contributions of young women and men below 35 years of age who are implementing innovations in African maize-based agri-food systems, including research-for-development, seed systems, agribusiness, and sustainable intensification. This is the second year of the award, and the first time it has been held in Africa. Winners include Hildegarde Dukunde of Rwanda and Mila Lokwa Giresse of the Democratic Republic of the Congo in the change agent category, Admire Shayanowako of the Republic of South Africa and Ismael Mayanja of Uganda in the research category, and Blessings Likagwa of Malawi in the farmer category.

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