Allelopathic effect of Leucaena leucocephala on Pansy (Viola tricolor L.)
##plugins.themes.bootstrap3.article.main##
Abstract
The present study on allelopahtic effect of L. leucocephala on pansy (V. tricolor L.) both laboratory and nursery conditions were undertaken. Leucaena which significantly reduced the seed germination in all treatments at 2% (43%), 3% (42%) and 4% (40%) over Control (Distilled water), except in treatment at 1% (55%) where
germination was found to be maximum over Control (Distilled water), this result shows the stimulatory effect on germination at 1% concentration of leaf leachate under laboratory condition. Leucaena soil in combination with Field soil showed stimulatory effect on the growth parameters in Pansy. Highest germination percentage (82%), fresh shoot weight (2.82g), fresh root weight (0.22g), dry shoot weight (0.50g), dry root weight (0.05g), vigor index (99.36) were recorded in treatment amended with soil 50% Leucaena soil and 50% Field soil and inhibitory effect was seen in pansy when amended into with 100% Leucaena soil under nursery condition. From this study it appears that Leucaena produces allelopahtic substrates, increase in concentration exhibit adverse effect on germination and growth parameters. Hence it is suggested that pansy could be affected economically but this tree can very well adapt to diversified soil condition.
##plugins.themes.bootstrap3.article.details##
##plugins.themes.bootstrap3.article.details##
Allelopathy, Leucaena, Leachates, Pansy
Andrade, L.F., Campos, J.M.S. and Davide, L.C. (2008). Cytogenetic alterations induced by SPL (spent potlin-ers) in meristematic cells of plant bioassays. Ecotoxicol. Environ. Saf., 71: 706–710.
Ashrafi, Y.Z., Sadeghi, S., Mashhadi, R.H. and Hassan, A.M. (2008). Allelopathic effects of sunflower (Helianthus annuus) on germination and growth of wild barley (Hordeum spontaneum). Journal of Agricultural Technology, 41: 978—982.
Bansal, G.L. (1994). The Science of Allelopathy: Problems and Prospects. In: Allelopathy in Agriculture and For-estry. eds S.S. Narwal and P. Tauro. Scientific Publish-ers, Jodhpur, India. 23-36 pp.
Blum, U., R. Shafer. and Lemon, M.E. (1999). Evidence for inhibitory allelopathic intraction including phenolic acids in field soils: Concept vs. An experimental model. Crit Rev. Plant Sci. , 18: 673-693.
Brewbaker,J.L. (1987). Significant nitrogen fixing trees in Agroforestry systems, in Gholz H.L. (Ed.) Agroforestry: Realities, Possibilities and potentials. Martinus Nijhoff publisher and ICRAF. Boston, Lancaster, 31-54pp.
Chon. S., S. Choi, S. Jung, H. Jang, B. and Pyo, S. Kim. (2002). Effects of alfalfa leaf extracts and phenolic al-lelochemicals on early seedling growth and root mor-phology of alfalfa and barnyard grass. Crop Protection, 21: 1077–1082.
Chou, C.H. (1986). The role of allelopathy in subtropical agroecosystems in Taiwan. In the Science of Allelopa-thy, eds. A. R. Putnam and C.S. Tang. New York: Wiley Interscience. 57-73 pp.
Einhellig, F.A. (2004). Mode of allelochemical action of phenolic compounds. In: Allelopathy. Chemistry and Mode of Action of Allelochemicals (Eds., F.A. Macias, J.C.G. Galindo, J.M.G. Molinillo, H.G. Cutler) .CRC Press, Boca Raton, Florida, USA. 217-238 pp.
Ferguson, J.J. and Rathinasabapathi, B. (2009). Thesis, Univ. of Florida, IFAS.
Gniazdowska, A. and Bogatek, R. (2005). Allelopathic interactions between plants. Multi site action of al-lelochemicals. Acta Physiologiae Plantarum, 27: 395–407.
Gomez, K.A. and Gomez, A.A. (1984). Statistical procedures for Agricultural Res. 2nd edn. John Wiley and Sons, New York. 680 pp.
Hale, M.G .and Orcutt, D.M. (1987). The physiology of plants under stress. The book: The physiology of plants under stress. 206 pp.
Leslie, A.W. (1996). Utilization of allelopathy for weed management in agroecosystems. Agronomy Journal, 88: 860-866.
Li, Z., Q. Wang, X. Ruan, C. Pan, and D. Jiang. (2010). Phe-nolics and plant allelopathy. Molecules.15: 8933-8952.
Miller, D.A. (1983). Allelopathic effects of alfalfa. J. Chem. Ecol., 9 (8):1059-1072.
Nandal, D.P.S. and Dhillon, A. (2007). Allelopathic effect of poplar (Populus deltoides Bartr. Ex. Marsh): An Assess-ment on the response of wheat varieties under labora-tory and field conditions. Indian. J. Agroforestry, 9 (2): 125-127.
Prasad, K. and Mahto, N.K. (2015). Assessment of Allelo-pathic potential of L. leucocephala on R. sativus. Inter-national Journal of Scientific and Research, 5 (1):1-3.
Prasad, K. (2012). Allelopathic influence of L. leucocephala on Z. mays. The Ecoscan (Special issue), 1: 435-438.
Tang J, Wang CK, Pan X, Yan H, Zeng G, Xu W, He W, Daly NL, Craik DJ, Tan N. (2010). Isolation and char-acterization of bioactive cyclotides from Viola labri-dorica. Helv Chim Acta, 93: 2287– 2295.
Tiwari, I. and Rajwar, S.G. (2010). The replacement of grasses and other herbs in the Himalayan grassland by allelopathic impact of exotic weed Eupatorium glandu-losum. New York Science Journal, 3 (3): 50-54.
Weir, T.L., S. Park. and J.M. Vivanco. (2004). Biochemical and physiological mechanisms mediated by al-lelochemicals. Plant Biology, 7: 472-479.
Zhu, H., Fu, J.F. and Pu, W. (2005). Effects of straw and nitrogen fertilizer on nitrogen utilization of summer maize. Soil., 37: 202-204.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)
