Browsing by Author "Chukwudi, Christopher Ubazi"

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    Effects of Allelochemical of Jatropha curcas L. Leachate on Germination and Shooting of Four (4) Pepper (Capsicum) Species in Keffi Nasarawa State, Nigeria
    (Department of Plant Science and Biotechnology, Nasarawa State University Keffi., 2020-02-28) Chukwudi, Christopher Ubazi; Abdulkarim, Bello Muhammad; Josiah, Chukwudi Onovo; Racheal, Ozofu Ewule; Shatu, Wudiri Asala; Peter, Napoleon Idachaba
    A laboratory study was carried out to evaluate the effect of leaf aqueous ex- tract of Jatropha curcas L. on germination and early shoot growth of four pepper (Capsicum) species at the Department of Plant Science and Biotech- nology Laboratory, Nasarawa State University, Keffi, Nigeria. Data collected were percentage inhibition and shoot length. Results from the experiment in- dicated that there was significant difference between the treatments (4%, 8%, 12%, 16% and 20%) and the control (0%) and within the treatments at P ≤ 0.05. All the test crops were affected by different concentrations of the aque- ous extracts and the most pronounced effect was at 12%, 16% and 20% con- centrations of the extracts in all cases respectively. Germination, shooting were inhibited completely at higher concentrations in the cases when com- pared with the control. The inhibitory effect was found to be concentration dependent and may be due to the presence of water soluble allelochemicals like phenols, tannins and azeliac acid.