Abstract
Field and controlled environment studies were conducted to examine the effects of plant stress during growth on the subsequent phytotoxicity of residues ofBrassica napus andBrassica campestris. High temperatures (30°C compared to 15°C day temperature) and short days (8 hours light compared to 16 hours light) increased the phytotoxicity of residues as measured by a wheat bioassay. Low levels of nutrient supply during growth also increased the toxicity of Brassica residues. The effect of water stress was less clear; severe moisture stress resulted in less phytotoxicity than mild water stress. The two species showed some differences in wheat phytotoxicity following applied plant stress and the field experiments suggested there was a potential for greater toxicity from summer grown residues.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bell E A and Charlwood B V 1980 Secondary Plant Products. Encyclopedia of Plant Physiology. New Series Vol 8. Springer-Verlag, New York. 674p.
Chou C H and Muller, C H 1972 Allelopathic mechanisms ofArctostaphylos glandulosa var. zacaensis. Am. Midland Naturalist 88, 324–347.
Del Moral R and Muller C H 1970 The allelopathic effects ofEucalyptus camadlulesis. Am. Midland Naturalist 83, 254–282.
Del Moral R 1972 On the variability of chlorogenic acid concentration. Oecologia 9, 289–300.
Evanari M 1949 Germination inhibitors. Bot. Rev. 15, 143–194.
Hall A B, Blum U and Fites R C 1982 Stress modification of allelopathy ofHelianthus annuus cultivar Russian-Mammoth debris on seed germination. Am. J. Bot. 69, 776–783.
Hall A B, Blum U and Fites R C 1983 Stress modification of allelopathy ofHelianthus annuus L debris on seedling biomass production ofAmaranthus retroflexus L. J. Chem. Ecol. 9, 1213–1222.
Harper S H T and Lynch J M 1982 The role of water-soluble components in phytotoxicity from decomposing straw. Plant and Soil 65, 11–17.
Kimber R W L 1973 Phytotoxicity from plant residues. II. The effect of time of rotting straw from grasses and legumes on the growth of wheat seedlings. Plant and Soil 38, 347–361.
Koeppe D E, Rohrbaugh L M and Wender S H 1969 The effect of varying UV intensities on the concentration of scopolin and caffeolquinic acids in tobacco and sunflower. Phytochemistry 8, 889–896.
Koeppe D E, Rohrbaugh L M, Rice E L and Wender S H 1970a The effect of X-radiation on the concentration of scopolin and caffeoylquinic acids in tobacco. Rad. Bot. 10, 261–265.
Koeppe D E, Rohrbaugh L M, Rice E L and Wender S H 1970b Tissue age and caffeoylquinic acid concentration in sunflower. Phytochemistry 9, 297–301.
Lehman R H and Rice E L 1972 Effect of deficiencies of N, P, S on chlorogenic acids and scopolin in sunflower. Am. Midland Naturalist 87, 71–80.
Mason-Sedun W, Jessop R S and Lovett J V 1986 Differential phytotoxicity among species and cultivars of the genus Brassica to wheat. I. Laboratory and field screning species. Plant and Soil 93, 3–16.
Mason-Sedun W and Jessop R S 1988 Differential phytotoxicity among species and cultivars of the genus Brassica to wheat. II. Activity and persistence of water-soluble phytotoxins from residues of the genus Brassica. Plant and Soil 107, 69–80.
McCalla T M and Norstadt F A 1974 Toxicity problems in mulch tillage. Agric. Environ. 1, 153–174.
Rice E L 1984 Allelopathy. Monograph (Second Edition) Physiological Ecology Service. 440 p.
Stringham G R 1971 Genetics of four hypocotyl mutants inB. campestris. J. Hered. 62, 248–250.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mason-Sedun, W., Jessop, R.S. Differential phytotoxicity among species and cultivars of the genus Brassica to wheat. Plant Soil 117, 93–101 (1989). https://doi.org/10.1007/BF02206261
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02206261