Screening indigenous tree species for suitable tree–crop combinations in the agroforestry system of Mizoram, India; pp. 269–278Full article in PDF format
| doi: 10.3176/eco.2008.4.04
The study was conducted in the northeastern state of Mizoram in India to find out the allelopathic effect of trees on agricultural crops. The study was conducted in a bioassay culture and a pot culture. The following results were received:
· In the bioassay culture, the germination and radicle length of all food crops decreased in leaf and bark extracts of Aporosa octandra, Anthocephallus chinensis, and Albizzia procera compared with the control, except the radicle length of Glycine max in the bark extract of Anthocephallus chinensis.
· In the pot culture, Glycine max was the most resistant crop (irrespective of trees and growth media), which showed the highest germination (75.28%) followed by Oryza sativa (68.33%) and Brassica campestris (54.44%). The length of crops (irrespective of growth media and crops) was the largest (86.39 cm) in combination with Anthocephallus chinensis, followed by Albizzia procera (83.85 cm) and Aporosa octandra (81.85 cm).
· Dry matter production of crops was highest in Anthocephallus chinensis (1.06 g/plant) followed by Aporosa octandra (0.83 g/plant) and Albizzia procera (0.81 g/plant). Thus, we concluded that the order of tree suitability for crops was Anthocephallus chinensis > Albizzia procera > Aporosa octandra and that of crops to trees was Glycine max > Oryza sativa > Brassica campestris.
Basotra, R., Chauhan, S. & Todaria, N. P. 2005. Allelopathic effects of medicinal plants on food crops in Garhwal Himalaya. J. Sustainable Agricult., 26, 43–56.
Bhatt, B. P. & Chauhan, D. S. 2000. Allelopathic effects of Quercus species on crops of Garhwal Himalaya. Allelopathy J., 7(2), 265–272.
Chou, C. H. & Lin, H. J. 1996. Autointoxication mechanism of Oryza sativa. Phytotoxic effects of decomposing rice residues in soil. J. Chem. Ecol., 2, 352–367.
Einhellig, F. A. 2002. The physiology of allelochemical action: clues and views. In Allelopathy: From Molecules to Ecosystems (Reigosa, M. J. & Pedrol, N., eds), pp. 1–23. Science Publishers, Enfield, New Hampshire.
El-Khatib, A. A 1997. Does allelopathy involve in the association pattern of Trifolium resupinatum. Biol. Plant., 40, 425–431.
Harborne, J. B. 1977. Introduction to Ecological Biochemistry. Academic Press, New York.
Inderjit. 1996. Plant phenolics in allelopathy. Bot. Rev., 62, 182–202.
Kaletha, M. S., Bhatt, B. P. & Todaria, N. P. 1996. Tree–crop interaction in traditional agroforestry systems of Garhwal Himalaya. 1. Phytotoxic effects of farm trees on food crops. Allelopathy J., 3, 247–250.
Khailov, K. M. 1974. Biochemical Traphodynamics in Marine Coastal Ecosystems. Naukova Dumka, Kiev.
Kong, C. H., Hu, F., Liang, W. J., Wang, P. & Jiang, Y. 2004. Allelopathic potential of Ageratum conyzoides at various growth stages in different habitats. Allelopathy J., 13, 233–240.
Melkania, N. P. 1983. Influence of certain selected tree species on ground flora. Ph.D. Thesis, Kumaun University, Nainital.
Qusem, J. R. 2002. Allelopathic effects of selected medicinal plants on Amaranthus retroflexus and Chenopodium murale. Allelopathy J., 10, 105–122.
Rice, E. L. 1974. Allelopathy. Academic Press, New York.
Rice, E. L. 1979. Allelopathy. An update. Bot. Rev., 45, 105–109.
Rice, E. L. 1984. Allelopathy. 2nd edn. Academic Press, Orlando.
Sharma, J. R. 1998. Statistical and Biometrical Techniques in Plant Breeding. New Age International Publication, New Delhi.
Singh, R. & Bawa, R. 1982. Effect of leaf leachates from Eucalyptus globulus Labill. and Aesculus indica Colebr. on seed germination of Glaucium flavum Crantz. Indian J. Ecol., 9, 21–28.
Tukey, H. B.1969. Implications of allelopathy in agricultural plant science. Bot. Rev., 35, 1–15.Back to Issue