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Effect of seed sources and different presowing treatments on the early growth performance of Plukenetia conophora (P.conophora)

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Author Affiliations

  • 1Department of Forestry and Wood Technology, Federal University of Technology, P.M.B 704, Akure, Ondo State, Nigeria
  • 2Department of Forestry and Wood Technology, Federal University of Technology, P.M.B 704, Akure, Ondo State, Nigeria

Int. Res. J. Biological Sci., Volume 11, Issue (1), Pages 33-39, February,10 (2022)

Abstract

This study evaluated the effect of seed sources and different pre-sowing treatments on the early growth performance of Plukenetia conophora from three different locations in Ondo State, Nigeria. The seeds used for this experiment were collected from three (3) different sources namely; Aba-Oyo (Akure South Local government Area), Owena (Ijesa-Osun LGA) and Ilara-Mokin (Ifedore LGA). The pre-sowing treatments used for this research include control (T1), soaking in cold water for 30 min (T2), 6 hrs (T3) and 24 hrs (T4), boiling in hot water for 20 secs (T5), 40 secs (T6), and 80 secs (T7), soaking in concentrated acid for 5 mins (T8), 10 mins (T9) and 20 mins (T10) were applied across all the seed sources under this experiment. Therefore, this experiment was performed in a Randomized Completely Blocked Designed (RCBD). Across all the different pre-sowing treatments used for this experiment, analysis of variance revealed the highest mean germination percentage value in the seeds pretreated for 20 minutes (T10) concentrated H2S04 (77.78%) followed by the seeds pretreated for 5 minutes (T8) concentrated H2S04 (68.89%) while the seeds soaked in cold water at thirty (30) minutes (T2) had a closer mean germination percentage value (62.22%) to T8. Finally, the lowest mean germination percentage value was seen in the seeds boiled in hot water at 80 seconds (T7) with no germination percentage value (0%) in Table-2. For increase in productivity and germination percentage. This study, therefore, recommends that P.conophora seeds be soaked in concentrated sulphuric acid for 20 minutes.

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