Breeding of high oil hybrid corn (Zea mays L.)
1988
Methee Eksirinimite
This study was conducted at the National corn and Sorghum Research center. Male parents were used to form single cross and three-way cross hybrids. Female parents consisted of three inbred lines: ki3, ki21 and ki27 along with two single cross hybrids: ksx 2901 and ksx 2903. Ninety-five high oil hybrid corn were arranged in yield trial and analysed for their oil contents. Results revealed that yield of single cross hybrids were higher than three-way cross hybrids. Means yield of single cross and three-way cross hybrid were 4,569 and 4,363 kg/ha respectively. Oil contents of single cross and three-way cross hybrids were slightly different at 5.6 and 5.8 %, respectively. The highest oil yield 769 kg/ha, was obtained from ki3 x AHO 19-1-4-3-3-4 single cross hybrid whereas the highest oil yield,719 kg/ha, was obtained from ksx 2903 x AHO 19-1-4-3-3-4 three way cross hybrid. Four good general combining ability inbred lines were AHO 19-1-4-3-3-4, aHO 19-1-4-3-1-4,[DA(HO)8-1 x HO 1-2]S4-1-1-2 and [AHO 21-2 x DA(HO)8-1]S4-1-2-1 with the oil content of 5.0, 7.3, 7.2 and 13.0 %, respectively.
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