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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/1997jou639.pdf
Last checked: 09/29/2008
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| Publication Type:
| Refereed |
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| Author(s): | Chen, Yuelan;
Eggens, J. L.;
Carey, K. |
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| Author Affiliation: | Department of Horticultural Science, University of Guelph, Guelph, Ontario, N1L 2WI Canada |
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| Title: | Stress response of single and multiple cultivar populations on Bent (Agrostis spp.) |
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| Section: | Physiology and ecology: Contributed papers
Other records with the "Physiology and ecology: Contributed papers" Section
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| Meeting Info.: | Sydney, Australia: 1997 |
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| Source: | International Turfgrass Society Research Journal. Vol. 8, No. Part 1, 1997, p. 639-651. |
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| Publishing Information: | Blacksburg, VA: International Turfgrass Society |
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| # of Pages: | 13 |
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| Keywords: | TIC Keywords: Agrostis; Poa annua; Competition; Disease susceptibility; Blends; Shoot growth; Tillers (vegetative); Root depth; Microdochium patch; Disease resistance; Dollar spot
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| Abstract/Contents: | "Separate greenhouse and field experiments examined the competitive abilities of three bent cultivars towards Poa annua and susceptibility to disease when grown as single and multiple cultivar populations. In the greenhouse, suppression of Poa annua shoot growth occurred when grown against multiple cultivar populations of Bent. On average, the tiller numbers of Poa annua were decreased by 22.2% and 11.3% compared with plants grown against Cobra and Emerald monoculture, respectively. Root systems of Poa annua grown against a three-cultivar mixture were reduced by 40% compared with the size achieved in Cobra and Astoria monocultures. The advantages of the mixtures suppressing the shoot and root growth of Poa annua were more evident with Bent cultivars that had low competitive ability against Poa annua. In the field, the mixture population of the three Bent cultivars had deeper root systems, produced more tillers than the monocultures, and significantly suppressed the growth of Poa annua. A micro-population 'micro-monoculture' mosaic of the three Bent cultivars demonstrated an edge effect. The local two-cultivar mixture/blend populations at the edges produced a larger root system, contributing to enhanced competition with Poa annua. The method of micro-monoculture populations shows potential as a new tool for study of the effects of mixtures or blends of turfgrass cultivars and species and the response to stresses. The mixture population showed the greatest advantages in resisting pink snow mould disease, but resistance to dollar spot disease of the mixed population was intermediate to that of the component cultivars." |
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| Language: | English |
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| References: | 14 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chen, Y., J. L. Eggens, and K. Carey. 1997. Stress response of single and multiple cultivar populations on Bent (Agrostis spp.). Int. Turfgrass Soc. Res. J. 8(Part 1):p. 639-651. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/1997jou639.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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MSU catalog number: SB 433 .I52 v. 8 |
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