• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Morphological and physiological characteristics of corn (Zea mays L.) roots from cultivars with different yield potentials

    Author(s)
    Qi, Wen-Zeng
    Liu, Hui-Hui
    Liu, Peng
    Dong, Shu-Ting
    Zhao, Bing-Qiang
    So, Hwat Bing
    Li, Geng
    Liu, Heng-De
    Zhang, Ji-Wang
    Zhao, Bin
    Griffith University Author(s)
    Liu, Porun
    Year published
    2012
    Metadata
    Show full item record
    Abstract
    Improving grain yield per unit area is needed to meet the growing demand for corn in China where the availability of fertile land is very limited. Roots are vital organs for yield improvement. A field experiment was conducted in 2009 and 2010 to compare the Morphological and physiological characteristics of the root systems of the higher-yielding corn variety DengHai 661 (DH661) and the commonly grown corn variety for northern China ZhengDan 958 (ZD958). The results clearly showed that DH661 consistently yielded higher than ZD958 in both years. The average biomass and grain yield of DH661 were 20.11% and 19.15% higher than ...
    View more >
    Improving grain yield per unit area is needed to meet the growing demand for corn in China where the availability of fertile land is very limited. Roots are vital organs for yield improvement. A field experiment was conducted in 2009 and 2010 to compare the Morphological and physiological characteristics of the root systems of the higher-yielding corn variety DengHai 661 (DH661) and the commonly grown corn variety for northern China ZhengDan 958 (ZD958). The results clearly showed that DH661 consistently yielded higher than ZD958 in both years. The average biomass and grain yield of DH661 were 20.11% and 19.15% higher than those of ZD958. The roots DH661 grow faster than ZD98, it can get the depth to 160-200 cm at VT stage, but the roots of ZD958 get that depth at R3 stage. At the same time, the maximum of root biomass and average root length density (RLD), root actively absorbing area, root TTC reducing capacity after VT stage in both years were 83.06%, 43.30%, 58.10% and 40.38% higher than those of ZD958, respectively. Which can supplying more water and nutrient for the shoot, and improve the LAI, photosynthetic rate (in the later growth stage) and longer duration of high photosynthesis, make the contribution to the shoot growth and grain filling. All the results supporting the hypothesis that greater root systems lead to higher yield.
    View less >
    Journal Title
    European Journal of Agronomy
    Volume
    38
    Issue
    1
    DOI
    https://doi.org/10.1016/j.eja.2011.12.003
    Subject
    Crop and pasture production
    Crop and pasture production not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/52107
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander