| Abstract |
The 1998 final report of the international maize testing program covers trials sent to cooperators in 1998 and for which data were received by September 30, 1999. It also includes trial results from 1996 and 1997 for which data arrived too late to be included in earlier reports. In 1998, the international testing program distributed two types of standard trials: Experimental Variety Trials (EVTs) and CIMMYT Hybrid Trials (CHTs) (Table 1.1.). The trials were distributed to national programs upon request as a product of CIMMYT's ongoing germplasm improvement work. Appendix A provides a general description of the Center's maize breeding methodology and its relationship to the trials available from the Maize Program. Agro-climatic information, when available, along with agronomic data, has been included in the summary tables for each location. Information on elevation, date planted and harvested, weather, soil properties, and agronomic operations should allow for the meaningful interpretation of trial results. You will find this information at the beginning of each chapter. Agro-climatic information is presented in each table in English, with Spanish translations provided in Appendix C under the heading "Abbreviations Used in the Summary Tables." This report is the end product of carefully conducted trials and the timely return of complete and accurate data by hundreds of trial cooperators whose participation is extremely valuable in the development of superior germplasm for developing country maize farmers. |
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