Allelopathic effects of leachates of African peach (Nauclea diderrichii) and white afara (Terminalia superba) on germination and growth of maize
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Abstract
Abstract. Onefeli AO, Oluranti OI, Uthman KT, Aderibigbe AA, Mustapha MB. 2024. Allelopathic effects of leachates of African peach (Nauclea diderrichii) and white afara (Terminalia superba) on germination and growth of maize. Cell Biol Dev 7: 22-27. This study was done to identify the allelopathic interference and nature of Nauclea diderrichii (De Wild.) Merr. and Terminalia superba Engl. & Diels on seed germination, the Seedling Vigour Index (SVI), and the growth of the seed of maize (Zea mays L.), to determine the best selection of tree species for agroforestry. The study was done at the University of Ibadan, Ibadan, Nigeria, both in the laboratory and on an agroforestry site. The freshly dried leaves of N. diderrichii and T. superba were collected and ground into powder to make leachate. The 3%, 6%, and 12% treatment leachate were made by soaking the powder for 24 hours, and the maize seeds were watered with the leachate. Statistical analysis was done with the data collected from the growth parameters for the two species using ANOVA, T-test, and Correlation. The N. diderrichii showed a slightly more effect on the maize than T. superba; the inhibitory effect of N. diderrichii was high with the increase in concentration of 3% (1.52), 6% (0.35), and 12% (0.81)) treatments, comparing mean values with the control. The two species have an inhibitory effect on most of the growth parameters. It was evident that N. diderrichii has more inhibitory effect on maize at high concentrations than T. superba. Seedling shoot dry weight had the strongest correlation with the SVI among the growth parameters. The result shows that T. superba is more suitable for agroforestry systems than N. diderrichii.
2017-01-01