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Combining Ability and Heterosis for Agronomic Traits, Husk and Cob Pigment Concentration of Maize

Author

Listed:
  • Ponsawan Khamphasan

    (Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand)

  • Khomsorn Lomthaisong

    (Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand)

  • Bhornchai Harakotr

    (Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University, Phathum Thani 12120, Thailand)

  • Marvin Paul Scott

    (Corn Insects and Crop Genetics Research Unit, USDA-ARS, Ames, IA 50011, USA)

  • Kamol Lertrat

    (Plant Breeding Research Center for Sustainable Agriculture, Khon Kaen 40002, Thailand)

  • Bhalang Suriharn

    (Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
    Plant Breeding Research Center for Sustainable Agriculture, Khon Kaen 40002, Thailand)

Abstract

The objective of this study was to identify the maize inbred lines with good general combining ability (GCA), good specific combining ability (SCA), high heterosis for yield and phytochemicals, and the crosses with high yield of yellow kernels and high anthocyanin content in cobs and husk, which was probably related to the high antioxidant activity. The parental lines including five unpigmented females and five pigmented males were crossed in North Carolina design II. The parents, the resulting 25 hybrids, and 5 controls were evaluated at two locations in the dry season of 2016/2017. Additive and non-additive gene effects controlled the inheritance of grain yield, agronomic traits, and phytochemicals. KKU–PFC2 and KKU–PFC4 had the highest GCA effects for phytochemical traits in husk and cob, whereas Takfa1 and Takfa3 were good combiners for grain yield. F 1 hybrids had significantly higher total anthocyanin content (TAC), total phenolic content (TPC), (2,2-diphenyl-1-picrylhydrazyl) (DPPH), and trolox equivalent antioxidant capacity (TEAC) in husk and cob than pigmented control cultivars. The hybrids superior for individual traits were identified, but the experiment was not able to identify superior hybrids for multiple traits. The Takfa3 × KKU–PFC5 and NakhonSuwan2 × KKU-PFC4 had the highest anthocyanin in husk and cobs, respectively. The breeding strategies to develop maize varieties with high anthocyanins and normal yellow kernels and utilization of the hybrids are discussed.

Suggested Citation

  • Ponsawan Khamphasan & Khomsorn Lomthaisong & Bhornchai Harakotr & Marvin Paul Scott & Kamol Lertrat & Bhalang Suriharn, 2020. "Combining Ability and Heterosis for Agronomic Traits, Husk and Cob Pigment Concentration of Maize," Agriculture, MDPI, vol. 10(11), pages 1-19, October.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:11:p:510-:d:436782
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    References listed on IDEAS

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    1. Felicia Wu & Hasan Guclu, 2013. "Global Maize Trade and Food Security: Implications from a Social Network Model," Risk Analysis, John Wiley & Sons, vol. 33(12), pages 2168-2178, December.
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