HETEROTIC PATTERNS AMONG EIGHT EXOTIC AND LOCAL YELLOW MAIZE POPULATIONS | ||
| Journal of Plant Production | ||
| Article 1, Volume 29, Issue 6, June 2004, Pages 2951-2991 PDF (911.2 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2004.238640 | ||
| Author | ||
| A. A. Habliza, | ||
| Maize Research Program, Field Crops Research Institute, ARC | ||
| Abstract | ||
| Information about heterotic pattems in breeding programs is very important. Introduction of exotic germplasm into national maize breeding program can help in providing new heterotic patterns to maize breeders. This study was conducted to determine heterotic patterns among eight yellow maize populations. Six of these populations are exotics while the other two were local populations. Full diallel was done among these eight populations. The eight populations. their crosses and reciprocals were evaluated at three locations in 2003 season. The results showed that populations 4S and 31 produced the highest per se grain yield. The highest heterotic combinations for yield among the parental populations were found between the two exotic populations 31and 45 and each of the two local populations. Sakha 21 (SK.21) and Nubaria Yellow Population (NYP). High parent heterosis was observed in crosses between Pop31 and each of SK.21 and NYP. Pop.31 demonstrated the highest general combining ability (GCA) for grain yield. The study indicated that. populations 31, 45. SK.21 and NYP have a good potential for use in the National Maize Breeding Program (NMBP) especially in a hybrid development program. | ||
| Keywords | ||
| Maize. Corn. Zea mays; Heterotic pattern; GCA; SCA; Dia"el; Reciprocal | ||
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