Allelopathic Effects of Aqueous Extracts of Plant Residues on Two Tropical Weeds of South Western Nigeria
allelopathy, cajanu s cajan, euphorbia heterophylla, bidens pilosa ., bidens pilosa
Abstract
The allelopathic effects of aqueous extracts of plant residues from zea mays (root and tassel) and cajanus cajan (leaves and stem) were examined on the two weeds, euphorbia heteropyhlla l. and bidens pilosa l. the results obtained showed that the aqueous extracts retarded the germination and the initial growth of both weeds. the effects were concentration dependent as the degree of retardation increased with increase in the concentrations of the extracts. the retardation of germination of e. heterophylla seeds was more pronounced in seeds treated with extracts from c. cajan leaf. The % germination decreased from 18% in the 5g concentration to 10% in 25g/200mL concentration at 144hrs experimental time. Similarly, the retardation of germination of B. pilosa seeds was more pronounced in C. cajan stem extract treated seeds. The % germination decreased from 52% in the 5g concentration to 20% in 25g/200mL concentration at 144hrs experimental time. The radicles of the two weeds were also retarded by the extracts. The retardation of radical lengths of E. heterophylla and B. pilosa seedlings were more pronounced in Cajanus cajan stem extract treated seeds as no radicle emerged until 72hrs experiment time. The radicle length of E. heterophylla seedling at 144hrs experiment was 0.93cm in the 5g concentration which reduced to 0.29cm in 25g/ 200mL extract concentration.
Downloads
How to Cite
References
S. Abu-Romman, M. Shatnawi, R. (2010) Allelopathic effects of Spurge (Euphorbia hierosigmitana) on wheat (Triticum durum) American Eurapian J Agric Environ. 7(3), 298-302.
A. Aisha, H. Uzma, Y. Zubaida, U. Aisha (2010) Evaluation of allelopathic action of some selected medicinal plant of lettuce seeds using sandwich method Journal of Med. 4(7), 536-541.
O. Alberto, A. Francisco, M. Jose (2012) Variation Endogenous and Exogenous of Allelochemical 2, 4- dihydroxy-7-metoxy-1, 4-benzoxazin- 3, (4H) - one (DIMBOA) in Root Architecture of maize (Zea mays). 2(3), 132-137.
Min An, D. Liu, I. Johnson, J. Lovett (2003) Mathematical modelling of allelopathy: II. The dynamics of allelochemicals from living plants in the environment. 161(1-2), 53-66. https://doi.org/10.1016/s0304-3800(02)00289-2
M. Ayeni, J. Kayode, P. Tedela (2010) Allelopathic Potentials of Some Crop Residues on the Germination and Growth of BidenspilosaL. 4(1), 40.
M. Ayeni, J. Kayode (2012) Allelopathic Potential of Some Crop Residues on the Germination and Growth of Soybean (Glycine max L.) Merrill. 2(10), 1057-1061.
Modupe Ayeni, Joshua Kayode (2013) Allelopathic Effects of Aqueous Extracts from Residues of Sorghum bicolor Stem and Maize Inflorescence on the Germination and Growth of Euphorbia heterophylla L. 2(2), 320-323. https://doi.org/10.5539/jps.v2n2p7
S. Kaul, G. Bansal (2002) Allelopathic effect of Ageratina adenophora on growth and development of Lantana camara. 7(2), 195-197.
M. Khan, F. Hussain, S. Musharaf, M. Imdadullah (2011) Allelopathic effects of Rhazyastricta decne on seed germination and seedling growth of maize. 6(30), 6391-6396.
M. Monica, P. Anea, M. Lucia, V. Zorica, M. Georgeta (2011) Analele Universității din Oradea, Fascicula Biologie. XVIII, 39-44.
N. Nulifer, M. Mosihuzzaman, T. Olof (2006) Analysis of Phenolic acids and carbohydrate in pigeon pea (Cajanus cajan) plant. 50(1), 45-53.
M. Oyun (2006) Allelopathic Potentialities of Gliricidia sepium and Acacia auriculiformis on the Germination and Seedling Vigour of Maize (Zea mays L.). 1(3), 44-47. https://doi.org/10.3844/ajabssp.2006.44.47
A. Sanchez- Moreiras, Tloba de la p, A. Martinez, L. Gonzalez, F. Pellisier, M. Regiosa (2004) Mode of action of hyrdroxamic acid (BOA) and other related compounds. 239-252.
M. Seerjana, B. Bharat, P. Jha (2007) Allelopathic effects of aqueous extracts of leaves of Parthenium hysterophorus L. on seed germination and seedling growth of some cultivars and wild herbaceous species. 5(5), 33-39.
S. Sisodia, M. Siddiqui (2010) Allelopathic effect by aqueous extracts of different parts of Croton bonplandianum Baill. on some crop and weed plants. 2(1), 22-028.
Yarnia, M. M.; Khorshidi Benam (2009) Allelopathic effect of sorghum extract on Amaranthus retroflexus seed germination and growth. 7(3 & 4), 770-774.
Published
2013-10-08
Issue
Section
License
Copyright (c) 2013 Authors and Global Journals Private Limited
This work is licensed under a Creative Commons Attribution 4.0 International License.