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| Publication Type:
| Report |
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| Author(s): | Mackenzie, R.;
Mortimer, A. M.;
Putwain, P. D.;
Bryan, I. B.;
Hawkes, T. R. |
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| Author Affiliation: | Department of Environmental and Evolutionary Biology, The University of Liverpool, P.O. Box 147, Liverpool L69 3BX UK; Zeneca Agrochemicals, Jealott's Hill Research Station, Bracknell, Berkshire, RG12 6EY UK |
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| Title: | The inheritance of chlorsulfuron resistance in perennial ryegrass: Strategic implications for management of resistance |
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| Meeting Info.: | Held: November 20-23, 1995, Brighton, England. |
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| Source: | Brighton Crop Protection Conference - Weeds 1995. Vol. 2, 1995, p. 769-774. |
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| Publishing Information: | Farnham, Surrey, England: British Crop Protection Council |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Herbicide resistance; Weeds; Genetics; Chlorsulfuron; Lolium perenne
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| Abstract/Contents: | "Inheritance studies were conducted on chlorsulfuron resistant Lolium perenne which had been selected previously by mass screening. Pair crosses of susceptible and resistant plants gave F1 progeny which showed intermediate levels of resistance (ED[50]) with respect to parental response. Maternal effects were also detected in patterns of inheritance in full sib progeny from crosses both amongst resistant plants and between susceptible and resistant individuals. There was noticeable variation in mean response of seedling families from a randomly mated population of 50 resistant plants to a dose of chlorsulfuron giving 92% mortality in susceptible populations. Mean growth performance in 14 of these seedling families was equivalent to that of unsprayed controls. In conjunction with other studies, it is postulated that resistance to chlorsulfuron was conferred by additive minor genes inherited in a quantitative manner but that the response to cycles of selection may be extremely rapid. These data are discussed in context of the management of herbicide resistance in weeds which is inherited polygenically." |
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| Language: | English |
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| References: | 11 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mackenzie, R., A. M. Mortimer, P. D. Putwain, I. B. Bryan, and T. R. Hawkes. 1995. The inheritance of chlorsulfuron resistance in perennial ryegrass: Strategic implications for management of resistance. Br. Crop Prot. Coun. Conf. Proc. Weeds. 2:p. 769-774. |
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MSU catalog number: SB 610 .B7 |
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