IDEAS home Printed from https://ideas.repec.org/a/ags/ijaeri/396335.html

AGRONOMIC TRAITS, GINNING APTITUDE AND JASSID (Amrasca biguttula) TOLERANCE OF COTTON (Gossypium hirsutum L.) VARIETIES IN CAMEROON

Author

Listed:
  • Amma Talba
  • Abakar Abba Said
  • Sobda Gonne
  • Palai Oumarou
  • Djoulde Darman Roger

Abstract

Increasing rainfall variability, growing pest pressure, and strong global market competition highlight the need for high-yielding, resilient, and locally adapted cotton varieties in Cameroon. This study evaluated the agronomic and ginning performance as well as jassid (Amrasca biguttula) tolerance of four newly developed Gossypium hirsutum L. varieties (IRMA L2026, L2033, L2146, L2168) in the Sudano-Sahelian zone. These genotypes were compared with two reference varieties, IRMA Q302 and IRMA A2249, during the 2023/2024 and 2024/2025 rainy seasons across four sites (Sanguéré, Pitoa, Mouda, Kodek) using a Fisher block design with six replications. Agronomic, phenological, and pest-tolerance traits were recorded. The new varieties exhibited good emergence (70%) and plant stand (84.5%) and were generally earlier than the controls, with flowering occurring 56–61 days after sowing and boll opening 107–119 days after sowing. They displayed reduced plant height compared with Q302. Yield performance was encouraging: in 2023, L2146, L2033, and L2026 produced 1.0–2.3 t/ha, while in 2024 all varieties achieved high yields, with A2249 slightly superior (2 t/ha). The new genotypes produced competitive boll weights (4.5 g) and high lint percentages (43–45%), with L2026 showing the highest ginning outturn (45%). Seed indices were similar across genotypes (8 g). Jassid infestation peaked at flowering; L2026 showed the greatest tolerance, yielding 1.2 t/ha without insecticide, whereas L2146 recorded the lowest performance (519 kg/ha). Overall, the four new varieties demonstrated promising productivity, fiber potential, and pest tolerance. L2033 and L2026 appear best suited to the Far North, L2168 to the North, while L2146 shows broader but variable adaptability. Further multilocation trials under semi-operational conditions are recommended to confirm their suitability and refine fiber and seed quality assessments.

Suggested Citation

  • Amma Talba & Abakar Abba Said & Sobda Gonne & Palai Oumarou & Djoulde Darman Roger, 2025. "AGRONOMIC TRAITS, GINNING APTITUDE AND JASSID (Amrasca biguttula) TOLERANCE OF COTTON (Gossypium hirsutum L.) VARIETIES IN CAMEROON," International Journal of Agriculture and Environmental Research, Malwa International Journals Publication, vol. 11(6), December.
    • Handle: RePEc:ags:ijaeri:396335
    DOI: 10.22004/ag.econ.396335
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/396335/files/ijaer_11__118.pdf
    Download Restriction: no
    File URL: https://libkey.io/10.22004/ag.econ.396335?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Keywords

    ;

    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:ags:ijaeri:396335. 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: AgEcon Search (email available below). General contact details of provider: http://ijaer.in/ .

    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.