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The Response of Three Festuca rubra Clones to Changes in Light Quality and Plant Density
H. Skalova and F. Krahulec
Vol. 6, No. 3 (1992), pp. 282-290
Published by: British Ecological Society
Stable URL: http://www.jstor.org/stable/2389518
Page Count: 9
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1. The influence of (a) plant density and (b) artificial canopy shading (reducing red/far-red ratio=R/FR) of only the basal parts of plants, on the growth of three morphologically different clones of Festuca rubra was investigated in field experiments and in a growth room. 2. In all three clones both treatments resulted in lower tiller number, lower tiller natality and higher maximum height of tillers of treated plants. It seems that both responses may be elicited by a lower R/FR ratio of the light reaching the basal parts of the plant. 3. The three clones displayed different sensitivity which seems to be correlated with canopy density of original stands. Such features of the clones could modify their competitive abilities and hence canopy structure.
Functional Ecology © 1992 British Ecological Society