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Effects of Mass Selection on Husk and Cob Color in Five Purple Field Corn Populations Segregating for Purple Husks

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

Improvement of anthocyanin levels in husks and cobs of field corn may add economic value to corn coproducts in commercial production. This study aimed to evaluate the response to four cycles of modified mass selection (MMS) for yield, agronomic traits, total anthocyanin yield (TAY), total anthocyanin content (TAC), total phenolic content (TPC) and antioxidant activity determined by 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity assay (DPPH) and trolox equivalent antioxidant capacity assay (TEAC) in corn husk and cob of five purple field corn populations. The improved populations and check varieties were evaluated at two locations for two seasons in 2017/2018. Selection cycle contributed to a large portion of the total variations for TAC, TPC, DPPH and TEAC in corn husk and cob. All tested populations showed progress for days to anthesis, TAY, TAC, TPC, DPPH and TEAC across four cycles of selection. Lack of significant correlation between agronomic traits and anthocyanin concentrations suggested the independent segregation of these traits. MMS was successfully used to develop field corn populations with improved anthocyanin, antioxidant activities and early flowering without significant yield loss. The populations with the highest selection gains for anthocyanin in husk and cob were identified. Visual selection for dark purple husks and cobs boosted anthocyanin levels and antioxidant activity in selected populations.

Suggested Citation

  • Ponsawan Khamphasan & Khomsorn Lomthaisong & Bhornchai Harakotr & Marvin Paul Scott & Kamol Lertrat & Bhalang Suriharn, 2020. "Effects of Mass Selection on Husk and Cob Color in Five Purple Field Corn Populations Segregating for Purple Husks," Agriculture, MDPI, vol. 10(8), pages 1-26, July.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:8:p:311-:d:390470
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