IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v12y2022i7p916-d846385.html
   My bibliography  Save this article

Variation of Grain Yield, Grain Protein Content and Nitrogen Use Efficiency Components under Different Nitrogen Rates in Mediterranean Durum Wheat Genotypes

Author

Listed:
  • Sawsen Ayadi

    (National Institute of Agronomy of Tunisia, Carthage University, LR-14-AGR-01, Cite Mahragène, Tunis 1082, Tunisia)

  • Salma Jallouli

    (National Institute of Agronomy of Tunisia, Carthage University, LR-14-AGR-01, Cite Mahragène, Tunis 1082, Tunisia)

  • Zoubeir Chamekh

    (National Institute of Agronomic Research of Tunisia, Carthage University, LR20-INRAT-02, Menzah I, Tunis 1084, Tunisia)

  • Inès Zouari

    (National Institute of Agronomy of Tunisia, Carthage University, LR-14-AGR-01, Cite Mahragène, Tunis 1082, Tunisia
    National Institute of Agronomic Research of Tunisia, Carthage University, LR20-INRAT-02, Menzah I, Tunis 1084, Tunisia
    High Institute of Agronomy of Chott Mariam, Sousse University, Chott-Mariem 13, Sousse 4042, Tunisia)

  • Simone Landi

    (Dipartimento di Biologia, Complesso Universitario Monte Sant’Angelo, Universita di Napoli Federico II, 80126 Naples, Italy)

  • Zied Hammami

    (International Center for Biosaline Agriculture, Dubai P.O. Box 14660, United Arab Emirates)

  • Fatma Ezzahra Ben Azaiez

    (National Institute of Agronomy of Tunisia, Carthage University, LR-14-AGR-01, Cite Mahragène, Tunis 1082, Tunisia)

  • Mokhtar Baraket

    (National Research Institute of Rural Engineering, Water and Forests (INRGREF), Tunis 1004, Tunisia)

  • Sergio Esposito

    (Dipartimento di Biologia, Complesso Universitario Monte Sant’Angelo, Universita di Napoli Federico II, 80126 Naples, Italy)

  • Youssef Trifa

    (National Institute of Agronomy of Tunisia, Carthage University, LR-14-AGR-01, Cite Mahragène, Tunis 1082, Tunisia)

Abstract

Nitrogen (N) is a crucial nutrient for plant growth and development. To optimize agricultural environments, N fertilizers represent a critical tool to regulate crop productivity. The improvement of nitrogen use efficiency (NUE) represents a promising tool that may enable cereal production to meet future food demand. Wheat reported contrasting behaviors in N utilization showing specific abilities depending on genotype. This study selected two landraces and two improved genotypes from Northern Africa to investigate grain yield (GY), grain protein content (GPC) and NUE. Plants were grown under three levels of N supply: 0, 75, 150 kg N ha −1 and for two consecutive years. Results reported a better NUE (0.40 kg kg N −1 ) obtained under 150 kg N ha −1 , while N utilization efficiency (NUtE) showed a 13% increase using 75 kg N ha −1 compared with 150 kg N ha −1 . Under low nitrogen rate (0 N), crop N supply (CNS) and N uptake efficiency (NUpE) were shown as determinant factors for improved genotypes GY (R 2 = 0.72), while NUtE represented the most determinant component for GPC in landraces (R 2 = 0.92). Multivariate regression models explained the dependence in GPC on NUE, NUpE, and NUtE. In conclusion, our results recognize GPC and NUtE as suitable selection traits to identify durum wheat with higher NUE.

Suggested Citation

  • Sawsen Ayadi & Salma Jallouli & Zoubeir Chamekh & Inès Zouari & Simone Landi & Zied Hammami & Fatma Ezzahra Ben Azaiez & Mokhtar Baraket & Sergio Esposito & Youssef Trifa, 2022. "Variation of Grain Yield, Grain Protein Content and Nitrogen Use Efficiency Components under Different Nitrogen Rates in Mediterranean Durum Wheat Genotypes," Agriculture, MDPI, vol. 12(7), pages 1-12, June.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:7:p:916-:d:846385
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/12/7/916/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/12/7/916/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Rongrong Wang & Haiqi Wang & Guiying Jiang & Haojie Yin & Ziqiang Che, 2022. "Effects of Nitrogen Application Strategy on Nitrogen Enzyme Activities and Protein Content in Spring Wheat Grain," Agriculture, MDPI, vol. 12(11), pages 1-17, November.
    2. Nadia Boulelouah & Mohamed R. Berbache & Hanane Bedjaoui & Nora Selama & Nazih Y. Rebouh, 2022. "Influence of Nitrogen Fertilizer Rate on Yield, Grain Quality and Nitrogen Use Efficiency of Durum Wheat ( Triticum durum Desf) under Algerian Semiarid Conditions," Agriculture, MDPI, vol. 12(11), pages 1-15, November.

    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:12:y:2022:i:7:p:916-:d:846385. 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.