IDEAS home Printed from https://ideas.repec.org/a/ibn/jasjnl/v11y2024i2p369.html
   My bibliography  Save this article

Giberellic Acid in the Expansion of the Thermal Range of Lettuce Seeds

Author

Listed:
  • Luma R. L. Nunes
  • Paloma R. Pinheiro
  • Charles L. Pinheiro
  • Wendson M. Silva
  • Felipe A. S. Cabral
  • Alek S. Dutra

Abstract

Lettuce presents an increasing demand, which makes necessary the expansion of the areas destined to its planting. Temperature is a limiting factor, because it acts directly on germination, where changes and adjustments in the hormonal balance, mainly of gibberellin (GA) and abscisic acid (ABA), occur. The objective of this study was to evaluate if the treatment of seeds with gibberellic acid is capable of mitigating the damages caused by high temperatures. The seeds were submitted to germination test, first count, percentage of abnormal seedlings and analysis of shoot and root growth. The treatments consisted of seven concentrations of gibberellic acid (control—not treated with GA, 25 mg L-1, 50 mg L-1, 75 mg L-1, 100 mg L-1, 125 mg L-1, 150 mg L-1) and three constant temperatures (25, 30 and 35 °C). The germination and first count, when submitted at 25 and 30 °C presented an increase up to 50 mg L-1 of GA, while at 35 °C the growth was constant up to 125 mg L-1 of GA. Treatment with GA increased root and shoot length. Giberelic acid mitigated the damage caused to lettuce seeds when subjected to temperatures above the optimum.

Suggested Citation

  • Luma R. L. Nunes & Paloma R. Pinheiro & Charles L. Pinheiro & Wendson M. Silva & Felipe A. S. Cabral & Alek S. Dutra, 2024. "Giberellic Acid in the Expansion of the Thermal Range of Lettuce Seeds," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 11(2), pages 369-369, April.
  • Handle: RePEc:ibn:jasjnl:v:11:y:2024:i:2:p:369
    as

    Download full text from publisher

    File URL: https://ccsenet.org/journal/index.php/jas/article/download/0/0/38110/38600
    Download Restriction: no

    File URL: https://ccsenet.org/journal/index.php/jas/article/view/0/38110
    Download Restriction: no
    ---><---

    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

    Statistics

    Access and download statistics

    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:ibn:jasjnl:v:11:y:2024:i:2:p:369. 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: Canadian Center of Science and Education (email available below). General contact details of provider: https://edirc.repec.org/data/cepflch.html .

    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.