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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

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Date added: 09/21/2012
Date modified: 09/21/2012
Filesize: 1.1 MB
Downloads: 6968

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.

Zambia hh survey report 2010 Zambia hh survey report 2010

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Date added: 09/10/2010
Date modified: 09/10/2010
Filesize: 806.81 kB
Downloads: 6812
The purpose of this study is to characterize the maize producing households and to assess the adoption of improved maize varieties. This study was also designed to collect baseline data on farm households to construct indicators that could be used to subsequently measure the impact of the adoption of improved maize varieties. Due to cost and time, the baseline study was conducted in only two selected districts in the country.

Ethiopia household survey 2010 Ethiopia household survey 2010

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Date added: 11/04/2010
Date modified: 11/04/2010
Filesize: 509.62 kB
Downloads: 6634
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

Results of the 2008 Regional Maize Trials in Southern Africa Results of the 2008 Regional Maize Trials in Southern Africa

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Date added: 06/15/2010
Date modified: 06/17/2010
Filesize: 610.84 kB
Downloads: 6487
This publication is based on results of the maize trials carried out in southern Africa, in 2008. For further details, contact C. Magorokosho, B. Vivek and J. MacRobert.

Community Survey Report, Kenya 2009 Community Survey Report, Kenya 2009

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Date added: 10/16/2009
Date modified: 02/10/2010
Filesize: 2.1 MB
Downloads: 6435
Community surveys were carried out in Machakos and Makueni districts to provide baseline socio-economic information. This report gives information acquired, to facilitate the analysis of the socio-economic and bio-physical environment in which DTMA maize varieties could be adopted and perform efficiently.
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