Phytotoxic Effect of Tithonia rotundifolia (Miller) S.F.Blake on Chlorophyll and Protein Contents of Vigna unguiculata L. and Zea mays L

Ilori Olasupo John and Olutobi Oluwafunmilayo Otusanya

Journal of Biology and Life Science, 2019, vol. 10, issue 2, 79-89

Abstract: A large number of plants impose inhibitory effects on the germination and growth of neighbouring or successional plants by releasing allelochemicals into the soil. This study investigated the phytotoxic effects of Tithonia rotundifolia (Miller) S.F.Blake on the chlorophyll and protein contents of Vigna unguiculata (L.) Walpers and Zea mays L.. This was with a view to determining the susceptibility of these crops to allelochemicals in the extracts prepared from T. rotundifolia. Seeds of the test plants were sown in pots filled with top humus soil. At two weeks, seedlings in each pot were thinned down to 10 seedlings per pot. Potted plants of the test crops were supplied with 400 ml of the appropriate water extracts while the control potted plants were supplied with 400 ml of water. Biochemical analyses were carried out according to standard methods. The data obtained were analysed by (ANOVA) to determine significant (P

Keywords: phytotoxic; allelochemicals; Tithonia rotundifolia; water extracts; test crops (search for similar items in EconPapers)
Date: 2019
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