CIMMYT Eastern Africa Maize Regional On-Station Trials: Results of the 2017 Season and 2018 Product Announcement

New and improved maize hybrids, developed by the CIMMYT Global Maize Program, are available for uptake by public and private sector partners, especially those interested in marketing or disseminating hybrid maize seed across Eastern Africa and similar agro-ecological zones. Following a rigorous trialing and a stage-gate advancement process CIMMYT advanced a set of new elite maize hybrids in Eastern Africa in 2018. Phenotypic data collected in Stage 4 trials for the selected hybrids as well as information about the trial sites are provided in this dataset. These trials were conducted through a network of partners, including NARES and private seed companies, in Eastern Africa under various management and environmental conditions. The summary results of the Regional Trials for CIMMYT Maize Hybrids in Eastern Africa for 2017. The trials include:

1. EHYB17-Set I – Early/extra-early maturing elite pre-commercial hybrids regional trials (including external and internal checks);
2. IHYB17-Set I – Intermediate maturing elite pre-commercial hybrids regional trial (including external and internal checks);
3. ILHYB17 – Intermediate-Late maturing elite pre-released and released hybrids regional trials (including external and internal checks);
4. EHYB17-Set II – Early maturing elite pre-commercial hybrids regional trials;
5. ILHYB17 Set II – Intermediate/late maturing elite pre-commercial hybrids regional trials.