Description:
"IITA/CIMMYT developed this maize streak resistant population
from Suwan 1 in a backcross project. Suwan is a broad base population developed
by Kasetsart University, Bankok, Thailand. Components are mainly elite Caribbean
varieties but Tuxpeno, Salvadoreno and USA germplasm was also included in the
original Population (Thai Compo #1). After three cycles of S1 selection, a backcross
project (HC3) was completed to obtain downy mildew resistance with Philippine
DMRI and DMR5 as sources of resistance to develop Suwan 1. Subsequent cycles
of S1 selection were completed with emphasis on gram yield and other desirable
characters." (Gebrekidan, B. 1990. Maize Improvement, Production and
Protection in Eastern and Southern Africa: Proceedings of the Third Eastern and
Southern Africa Regional Maize Workshop. Nairobi, Kenya.)