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    2024-Boukrouh_et_al_Bitter_vetch.pdf (961.9Ko)
    Date
    2024-09-12
    Auteur
    Boukrouh, Soumaya
    Noutfia, Ali
    Moula, Nassim
    AVRIL, Claire
    LOUVIEAUX, Julien
    Hornick, Jean-Luc
    Chentouf, Mouad
    Cabaraux, Jean-François
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    Characterisation of bitter vetch (Vicia ervilia (L.) Willd) ecotypes: An ancient and promising legume

    Résumé
    Abstract : "Bitter vetch (Vicia ervilia (L.) Willd) is a promising legume, drought tolerant, mainly used in the Mediterranean area for its grains as a source of proteins in animal feed. However, it is an underused crop cultivated in marginal soils. Ecological, agro-morphological, and bromatological diversity evaluations were conducted to study its reintroduction potential. Seeds of seventeen ecotypes were collected in seventeen farms located in Northern Morocco in 2018. The cultivation was realised during the 2019 and 2020 growing seasons using a randomised complete block design with three replicates. Agro-morphological data were collected at the start of flowering, full flowering, and pod setting phenological stages. Yield component assessment and grain and straw bromatological characterisation were performed at maturity. The results indicated significant variations between ecotypes for almost all parameters and interesting results about yield (1 t ha–1) but lower protein content (22.9% of dry matter) compared to other ecotypes of the Mediterranean region. The estimated genetic parameters could emphasise the possibility of selecting highly productive and nutritive cultivars. However, interannual variations were also detected, making the selection of the ecotypes harder. No significant correlations were observed between agro-morphological and bromatological traits of grains and geographical distances. Multivariate analyses (principal component analysis and heatmap) clustered ecotypes into five groups, where the ecotypes included in the second cluster were the most interesting candidates for developing high-yielding and nutritive varieties. That is why this plant could be considered of interest, especially in these times of climate change."

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