IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v11y2021i2p161-d500445.html
   My bibliography  Save this article

Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

Author

Listed:
  • Alberto A. Chassaigne-Ricciulli

    (International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico City 06600, Mexico)

  • Leopoldo E. Mendoza-Onofre

    (Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo Código Postal 56230, Mexico)

  • Leobigildo Córdova-Téllez

    (Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo Código Postal 56230, Mexico)

  • Aquiles Carballo-Carballo

    (Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco km 36.5, Montecillo Código Postal 56230, Mexico)

  • Félix M. San Vicente-García

    (International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico City 06600, Mexico)

  • Thanda Dhliwayo

    (International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico City 06600, Mexico)

Abstract

Genotype, environmental temperature, and agronomic management of parents influence seed yield in three-way cross hybrid maize seed production. The objective of this research was to generate information on the seed production of six three-way cross hybrids and their progenitors, adapted to tropical lowlands. Data on days to—and duration of—flowering, distance to spike and stigmas, and seed yield of five female single crosses and five male inbred lines were recorded for different combinations of four planting densities and four sowing dates in Mexico. The effect of planting density was not significant. The male inbred line T10 was the earliest and highest seed yield and T31 the latest, occupying second place in yield. The single crosses T32/T10 and T13/T14 were the earliest and had the highest effective seed yield. At the earliest sowing date, the females were later in their flowering, accumulated fewer growing degree days (GDD), and obtained higher yields since the grain-filling period coincided with hot days and cool nights. To achieve greater floral synchronization and therefore greater production of hybrid seed, differential planting dates for parents are recommended based on information from the accumulated GDD of each parent. The three-way cross hybrids were classified according to the expected seed yield of the females and the complexity in the synchronization of flowering of their parents.

Suggested Citation

  • Alberto A. Chassaigne-Ricciulli & Leopoldo E. Mendoza-Onofre & Leobigildo Córdova-Téllez & Aquiles Carballo-Carballo & Félix M. San Vicente-García & Thanda Dhliwayo, 2021. "Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids," Agriculture, MDPI, vol. 11(2), pages 1-19, February.
  • Handle: RePEc:gam:jagris:v:11:y:2021:i:2:p:161-:d:500445
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/11/2/161/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2077-0472/11/2/161/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:11:y:2021:i:2:p:161-:d:500445. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.