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Allelopathic Potential of Some Crop Residues on the Germination and Growth of Soybean (Glycine max L.) Merrill



Author(s)

Modupe Janet Ayeni and Joshua Kayode

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DOI:10.17265/2161-6264/2012.10B.001

Department of Plant Science, Ekiti State University, Ado Ekiti 360101, Nigeria

Allelopathic potentials of aqueous water extracts from residues of sorghum stem, maize inflorescence and rice husks on the germination of soybeans (Glycine max. L.) were investigated. The result showed that the extracts brought about a considerable inhibition in the germination of soybean seeds, reductions in the radicle and plumule lengths of soybean seedlings. Whereas, the extracts of maize inflorescence and rice husk had more inhibitory effects on the growth of soybean radicle, all the three extracts demonstrated pronounced inhibitory effects on the growth of the plumule. The retardation of soybean germination, radicle and plumule growths were concentration dependents as the degree of retardations increases with increase in the concentration of the extracts. Statistical analysis (ANOVA, P = 0.05) revealed that there were no significant differences in the germination, radicle and plumule growths at 24 and 48 h experimental time when compared to the control. However, statistical differences abound in the growth parameters at 72 and 144 h experimental time.

Allelopathic, allelochemicals, crop residues, Glycine max.