Morphology and growth of stolons and rhizomes in three clonal grasses, as affected by different light supply
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In this paper, the hypothesis is tested that, in clonal grasses producing stolons and/or rhizomes, stolons always show a higher morphological plasticity than rhizomes in response to variation in light availability.Agrostis stolonifera (a stoloniferous grass),Holcus mollis (a rhizomatous grass) andCynodon dactylon (a grass forming both stolons and rhizomes), were grown in pots and subjected to three levels of light intensities. Both stolons and rhizomes branched more intensively under higher light levels. Irrespective of species, stolons consisted of longer internodes under lower light levels, while rhizome morphology did not respond significantly. Biomass partitioning to rhizomes was lower under lower light intensities while partitioning to stolons was not affected. Rhizomes usually had more dormant buds than did stolons. Our results suggest that stolons serve primarily as foraging organs for light, whereas the main function of rhizomes is storage of meristem and carbohydrates, irrespective of whether the grass species involved produces both rhizomes and stolons or only one type of spacer.
Bell, A. D. 1984. Dynamic morphology: a contribution to plant population ecology. pp. 48–65. In: Dirzo, R. & Sarukhan, J. (eds), Perspectives on plant population ecology. Sinauer, Sunderland.
Cook, R. E. 1985. Growth and development in clonal plant population. pp. 259–296. In: Jackson, J. B. C., Buss, L. W. & Cook, R. E. (eds), Population biology and evolution of clonal organisms. Yale University Press, New Haven.
de Kroon, H. & Hutchings, M. J. (in press) Morphological plasticity in clonal plants: The foraging concept reconcidered. Journal of Ecology.
de Kroon, H. & Knops, J. 1990. Habitat exploration through morphological plasticity in two chalk grassland perennials. Oikos 59: 39–49.
de Kroon, H. & Schieving, F. 1991. Resource allocation patterns as a function of clonal morphology: a general model applied to foraging clonal plant. Journal of Ecology 79: 519–530.
Dong, M. 1993. Morphological plasticity of the clonal herbLamiastrum galeobdolon (L.) Ehrend. & Polatschek in response to partial shading. New Phytol. 124: 291–300.
Dong, M. & de Kroon, H. 1994. Plasticity in morphology and biomass allocation inCynodon dactylon, a grass species forming stolons and rhizomes. Oikos 70: 99–106.
Evans, J. P. 1992. The effect of local resource availability and clonal integration on ramet functional morphology inHydrocotyle bonariensis. Oecologia 89: 265–276.
Geber, M. 1989. Interplay of morphology and development on size inequality: APolygonum greenhouse study. Ecological Monographs 59: 267–288.
Grime, J. P. 1979. Plant strategies and vegetation processes. John Wiley & Sons, Chichester.
Grime, J. P., Hodgson, J. G. & Hunt, R. 1988. Comparative Plant Ecology. Unwin Hyman, London.
Hanna, W. W. 1992.Cynodon dactylon. pp. 100–102. In: 'tMannetje, L. & Jones, R. M. (eds), Plant resources of south-east asia. No 4: Forages. Pudoc Scientific Publishers, Wageningen.
Hartnett, D. C. 1990. Size-dependent allocation to sexual and vegetative reproduction in four clonal composites. Oecologia 84: 254–259.
Hutchings, M. J. & de Kroon, H. 1994. Foraging in plants: the role of morphological plasticity in resource acquisition. Advance in Ecological Research 25: 159–238.
Hutchings, M. J. & Slade, A. J. 1988. Morphological plasticity, foraging and integration in clonal perennial herbs. pp. 83–109. In: Davy, A. J., Hutchings, M. J. & Watkinson, A. R. (eds). Plant population ecology. Blackwell Scientific Publications, Oxford.
Jerling, L. 1988. Clonal dynamics, population dynamics and vegetation pattern ofGlaux maritima on a Baltic sea shore meadow. Vegetatio 74: 171–185.
Kik, C., van Andel, J., Joenje, w. & Bijlsma, R. 1990. Colonization and differentiation in the clonal perennialAgrostis stolonifera. Journal of Ecology 78: 949–961.
Leakey, R. R. B. 1981. Adaptive biology of vegetatively regenerating weeds. Advances in Applied Biology 6: 57–90.
Mitchell, P. L. & Woodward, F. I. 1988. Responses of three woodland herbs to reduced photosynthetically active radiation and low red to far-red ratio in shade. Journal of Ecology 76: 807–825.
Ovington, J. D. & Scurfield, G. 1965. Biological flora of the British Isles:Holcus mollis L. Journal of Ecology 44: 272–280.
Potvin, C., Lechowicz, M. J. & Tardif, S. 1990. The statistic analysis of ecophysiological response curves obtained from experiments involving repeated measure. Ecology 71: 1389–1400.
Rawal, K. M. & Harlan, J. R. 1971. The evolution of growth habit inCynodon L. C. Rich (Gramineae). Illinois State Academy Science 64: 110–118.
Samson, D. A. & Werk, K. S. 1986. Size-dependent effects in the analysis of reproductive effort in plants. The American Naturalist 127: 667–680.
SAS. 1985. SAS/STAT guide for personal computers, version 6 Edition. SAS Institute Inc., Cary, NC.
Slade, A. J. & Hutchings, M. J. 1987. The effect of light intensity on foraging the clonal herbGlechoma hederacea. Journal of Ecology 75: 639–650.
Sokal, R. R. & Rohlf, F. J. 1981. Biometry. W. H. Freeman and Company.
Sutherland, W. J. & Stillman, R. A. 1988. The foraging tactics of plants. Oikos 52: 239–244.
Thompson, L. 1993. The influence of natural canopy density on the growth of white clover,Trifolium repens. Oikos 67: 321–324.
Weiner, J. 1988. The influence of competition on plant reproduction. pp. 228–245. In: Lovett Doust, J. & Lovett Doust, L. (eds), Plant reproductive ecology—pattern and strategies. Oxford University Press, Oxford.
White, J. 1979. The plant as a metapopulation. Annual Review of Ecology and Systematics 10: 109–45.
Williams, E. D. 1971. Effects of light intensity, photoperiod and nitrogen on the growth of seedlings ofAgropyron repens (L.) Beauv. andAgrostis gigantea Roth. Weed Research 11: 159–170.
- Morphology and growth of stolons and rhizomes in three clonal grasses, as affected by different light supply
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