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Ecological environment effects on germination and seedling morphology in Parkia biglobosa in nursery (Côte d'Ivoire) and greenhouse (France)

Abstract : Néré (Parkia biglobosa) is a wild species preferred and overexploited for its multiple uses by rural populations in Sub-Saharan Africa. The study of its germination and seedlings could constitute a prerequisite for its domestication, necessary for its conservation. This study aimed to assess the germination and morphology of seedlings taking into account distinct habitats from its natural environment.A total of 2160 seeds from different mother plants and 540 seedlings from germination were selected and evaluated. The trials were conducted on three sites (two nurseries in Côte d'Ivoire vs one greenhouse in France) with different microclimates. The results showed that the larger the mother trees are, the larger the seeds they produce, which in turn generate more vigorous seedlings. This study showed that the species grows better in a milder environment that is different from its region of origin (fertile soil with a stable or humid tropical climate: Montpellier greenhouse and Daloa nursery). Overall, parent trees did not statistically influence each germination and seedling development parameter for the three sites combined (P > 0.05). However, analysis of variance showed that germination and seedling development parameters differed between experimental sites (P < 0.05). These results are useful and could be used as decision support tools to guide conservation (domestication) and agroforestry programmes based on Parkia biglobosa. This study could be extended to other endangered species in order to preserve biodiversity.
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Submitted on : Wednesday, November 10, 2021 - 11:22:19 AM
Last modification on : Tuesday, January 4, 2022 - 6:09:32 AM
Long-term archiving on: : Friday, February 11, 2022 - 6:32:51 PM

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Beda Innocent Adji, Sélastique Doffou Akaffou, Sylvie-Annabel Sabatier. Ecological environment effects on germination and seedling morphology in Parkia biglobosa in nursery (Côte d'Ivoire) and greenhouse (France). International Journal of Horticulture, Agriculture and Food science, AI Publications, 2021, 5 (5), pp.01 - 13. ⟨10.22161/ijhaf.5.5.1⟩. ⟨hal-03423951⟩

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