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DTMA Project Platform. October - December 2009 DTMA Project Platform. October - December 2009

Date added: 01/19/2010
Date modified: 01/27/2010
Filesize: 224.42 kB
Downloads: 3445
This issue of the Platform gives an overview of the key events in the DTMA project for the last quarter of the year. 

DTMA Seed Sector Analysis in Eastern and Southern Africa 2008 DTMA Seed Sector Analysis in Eastern and Southern Africa 2008

Date added: 10/16/2009
Date modified: 04/23/2010
Filesize: 2.01 MB
Downloads: 8687

This report gives the results of a study done in 2007. The survey results suggest that a several institutional bottlenecks hamper the smooth functioning of the maize seed sector in Africa.

DTMA Seed Sector Analysis in West Africa DTMA Seed Sector Analysis in West Africa

Date added: 12/08/2009
Date modified: 01/19/2010
Filesize: 701.04 kB
Downloads: 21587
Titled 'Assessing the constraints affecting production and deployment of maize seed in DTMA countries of West Africa, this report is an analysis of the seed sector in West Africa, carried out by the DTMA project and compiled in October 2009.

Ethiopia household survey 2010 Ethiopia household survey 2010

Date added: 11/04/2010
Date modified: 11/04/2010
Filesize: 509.62 kB
Downloads: 5307
This country study presents the findings of the household survey  which serves as a baseline for characterizing the maize producting households in Adami Tulu - Jido Kombolcha and Adama Districts, in Oromia, Ethiopia

Evaluation of Regional On-farm Variety Trials in Eastern and Southern Africa 2011 Evaluation of Regional On-farm Variety Trials in Eastern and Southern Africa 2011

Date added: 09/21/2012
Date modified: 09/21/2012
Filesize: 1.1 MB
Downloads: 5679

In 2006, the Drought Tolerant Maize for Africa (DTMA) project was initiated withthe aim of improving maize germplasm in the drought prone mid-altitude regions ofeastern and southern Africa (ESA). Through this project eight hybrids and four openpollinatedvarieties (OPVs) were developed through multi-location trials under optimal(well fertilized and well-watered conditions), rainfed, low soil nitrogen and manageddrought stress environments. To validate the performance of the new germplasm againstcommercially available germplasm and farmer-preferred varieties, a series of trials wereconducted across 49 farmers’ fields in eight countries in 2010/11 seasons in ESA. Trialswere un-replicated and conducted under farmer management, with farms consideredblocks in a randomized complete-block design. Average trial yields ranged from 0.7 t ha-1 to above 8 t ha-1. Trials were divided into two categories based on yield levels; high yieldingtrials >=3 t ha-1 (n = 30 trials) and low yielding trials < 3 t ha-1 (n = 19 trials). Broad senseheritability of high and low yielding trials was 0.80 and 0.62 to 0.94 and 0.61, respectively,indicating that highly repeatable means can be estimated from un-replicated on-farmtrials in ESA. The best new DTMA hybrids out-yielded the farmers’ own varieties by morethan 35% and 50% under low- and high-yield conditions, respectively, when compared to SC513, the most widely grown commercially hybrid available varieties in southern Africa.

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