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| Web URL(s): | http://www.jstor.org/stable/2433866
Last checked: 08/17/2012
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http://www.jstor.org/stable/pdfplus/2433866.pdf
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| Publication Type:
| Refereed |
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| Author(s): | Warwick, S. I.;
Briggs, D. |
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| Author Affiliation: | Botany School, Cambridge University, England |
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| Title: | Population differentiation in Poa annua L. in a mosaic environment of bowling green lawns and flower beds |
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| Article Series: | The genecology of lawn weeds, part 1 |
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| Source: | New Phytologist. Vol. 81, No. 3, November 1978, p. 711-723. |
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| Publishing Information: | Oxford, England, United Kingdom: Blackwell Publishing, for the New Phytologist Trust |
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| # of Pages: | 13 |
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| Related Web URL: | http://www.jstor.org/stable/info/2433866
Last checked: 10/08/2013
Notes: Abstract only |
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| Keywords: | TIC Keywords: Bowling greens; Chromosomes; Erectness; Esterase; Growth period; Heterozygotes; Ornamental gardens; Poa annua
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| Abstract/Contents: | "An examination of variation in Poa annua L. provided evidence for population differentiation between two bowling greens and their adjacent flower beds. The bowling green populations consisted almost entirely of prostrate individuals, whereas the flower bed populations were more heterogeneous, containing both erect and prostrate growth forms. Family trials indicated that vegetative and floral erectness, and time from sowing to anthesis were under genetic control. Erect families came into flower significantly quicker than prostrate families. Moreover, there were significant differences, both between and within families, for each of the two growth forms in mean number of days from sowing to anthesis. An investigation was conducted using gel electrophoretic techniques to examine the genetic structure of these populations of P. annua, and to estimate the amount of natural outcrossing. The esterase enzyme system was found to consist of multiple molecular forms. No apparent banding differences were found which distinguished erect and prostrate growth forms. Heterogeneity of banding patterns was discovered within both growth form groups, suggesting that each of the prostrate and erect growth forms consisted of more than one genotype. Evidence that the observed banding patterns were under genetic control was obtained from the examination of four families derived from selfed heterozygotes, which yielded segregating patterns within families. Both erect and prostrate growth forms, in the area under study, had the chromosome number 2n = 28." |
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| Language: | English |
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| References: | 34 |
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| See Also: | See also part 2 "Evidence for disruptive selection in Poa annua L. in a mosaic environment of bowling green lawns and flower beds" New Phytologist, 81(3) November 1978, p. 725-737, R=5769. R=5769
See also part 3 "Cultivation experiments with Achillea millefolium L., Bellis perennis L., Plantago lanceolata L., Plantago major L., and Pruella vulgaris L. collected from lawns and contrasting grassland habitats" New Phytologist, 83(2) September 1979, p. 509-536, R=166958. R=166958
See also part 4 "Adaptive significance of variation in Bellis perennis L. As revealed in a transplant experiment" New Phytologist, 85(2) June 1980, p. 275-2288, R=166977. R=166977
See also part 5 "The adaptive significance of different growth habit in lawn and roadside populations of Plantago major L." New Phytologist, 85(2) June 1980, p. 289-300, R=166979. R=166979
See also part 6 "The adaptive significance of variation in Achillea millefolim L. as investigated by transplant experiments" New Phytologist, 85(3) July 1980, p. 451-460, R=166981. R=166981
See also part 7 "The response of different growth forms of Plantago major L. and Poa annua L. to simulated trampling" New Phytologist, 85(3) July 1980, p. 461-469, R=5753. R=5753 |
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| Note: | Summary as abstract
Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Warwick, S. I., and D. Briggs. 1978. Population differentiation in Poa annua L. in a mosaic environment of bowling green lawns and flower beds. New Phytol. 81(3):p. 711-723. |
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| Web URL(s):
http://www.jstor.org/stable/2433866
Last checked: 08/17/2012
Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/2433866.pdf
Last checked: 08/17/2012
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Access conditions: Item is within a limited-access website |
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MSU catalog number: b2219226 |
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