CIMMYT-Asia Maize Regional On-Station (Stage 4) and On-Farm (Stage 5) Trials: Results of the 2020/21, and 2021/22 Seasons and 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 rainfed lowland tropics of South Asia and similar agro-ecological zones. Following a rigorous trialing and a stage-gate advancement process culminating in Stage 5 trials, CIMMYT advanced a total of five new elite maize hybrids in South Asia in 2023. Phenotypic data collected in Stage 4 and Stage 5 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 South Asia under various management and environmental conditions. Each hybrid is associated with one of the following product profiles for South Asia: Waterlogging and Drought-Tolerant (SAWLDT), Drought-Tolerant (SADT), or Heat- and Drought -Tolerant (SAHDT).