PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Czasopismo

2008 | 60 |

Tytuł artykułu

What to divide leaves into ten parts for? The proposition of shape indices of leaf blade

Autorzy

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
In this paper the method of creating indices for description leaf blade roundness and asymmetry, based on division of the leaf into 10 equal parts perpendicularly to the long axis was proposed. Along each division line the distance between the midrib and the leaf edge was measured separately for the left and right site of the blade. Sum of all 18 measurements, 9 on each side, may be treated as an index of the roundness of the leaf blade. Differences between sums of all measurements of the left and right leaf site could be a base for calculations of various asymmetry indices, including indicators of fluctuating asymmetry. Indices obtained by this method are quite sensitive and may be analysed using standard statistical methods.

Wydawca

-

Czasopismo

Rocznik

Tom

60

Opis fizyczny

p.29-33,fig.,ref.

Twórcy

autor
  • University of Gdansk, Al.Legionow 9, 80-441 Gdansk, Poland
autor

Bibliografia

  • Barna M. 2004. Adaptation of european beech (Fagus sylvatica L.) to different ecological conditions: leaf size variation. Polish Journal of Ecology 52: 34–45.
  • Cowart N.M., Graham J.H. 1999. Within-and among-individual variation in fluctuating asymmetry of leaves in the fig (Ficus carica L.). International Journal of Plant Science 160: 116–121.
  • Dickinson T.A., Parker W.H., Strauss R.E. 1987. Another approach to leaf shape comparisons. Taxon 36: 1–20.
  • Frazer G.W. Trofymow J.A., Lertzman K.P. 2000. Canopy openness and leaf area in chronosequences of coastal temperate rainforest. Canadian Journal of Forest Research 30: 239–256.
  • Freeman D.C., Brown M.L., Duda J.J., Graraham J.H., Emlen J.M., Krzysik A.J., Balbach H., Kovacic D.A., Zak J.C. 2005. Leaf fluctuating asymmetry, soil disturbance and plant stress: a multiple year comparison using two herbs, Ipomoea pandurata and Cnidoscolus stimulosus. Ecological Indicators 5: 85–95.
  • Gravano E., Bussotti F., Grossoni P., Tani C. 1999. Morpho-anatomical and functional modifications in beech leaves on the top ridge of the Apennines (Central Italy). Phyton 39: 41–46.
  • Hódar J.A. 2002. Leaf fluctuating asymmetry of Holm oak in response to drought under contrasting climatic conditions. Journal of Arid Environment 52: 233–243.
  • Jack S.B., Long J.N. 1991. Response of leaf area index to density for two contrasting tree species. CanadianJourn al of Forest Research 21: 1760–1764.
  • Jentys-Szaferowa J. 1959. Graficzna metoda porównywania kształtów roślinnych. Nauka Polska 3: 79–110.
  • Kincaid D.T., Schneider R.B. 1983. Quantification of leaf shape with a microcomputer and Fourier transform. Canadian Journal of Botany 61: 2333–2342.
  • Lempa K., Martel J., Koricheva J., Haukioja E., Ossipov V., Ossipova S., Pihlaja K. 2000. Covariation of fluctuating asymmetry, herbivory and chemistry during birch leaf expansion. Oecologia 122: 354–360.
  • Møller A.P. 1999. Elm, Ulmus glabra, leaf asymmetry and Dutch elm disease. Oikos 85: 109–116.
  • Nagamitsu T., Kawahara T., Hotta M. 2004. Phenotypic variation and leaf fluctuating asymmetry in isolated populations of an endangered dwarf birch Betula ovalifoliaI in Hokkaido, Japan. Plant Species Biology 19: 13–21.
  • Palmer A.R. 1994. Fluctuating asymmetry analyses: a primer. In: Developmental instability: its origins and evolutionary implications. Markow T.A. (ed.) Kluwer, Dordrecht, pp. 335–364.
  • Puntieri J.G., Souza M.S., Brion C., Mazzini C., Barthélémy D. 2003. Axis differentiation in two South American Nothofagus species (Nothofagaceae). Annals of Botany 92: 589–599.
  • Rettig J.E., Fuller R.C., Corbert A.L., Getty T. 1997. Fluctuating asymmetry indicates levels of competition in an even-aged clone. Oikos 80: 123–127.
  • StatSoft, Inc. 2001. STATISTICA (data analysis software system), version 6. www.statsoft.com.
  • Vlcek J., Cheung E. 1986. Fractal analysis of leaf shapes. Canadian Journal of Forest Research 16: 124–127.
  • Zar J.H. 1996. Biostatistical Analysis, 3rd editon. Prentice-Hall. London.
  • Żółkoś K., Meissner W. 2008. The effect of Grey Heron (Ardea cinerea L.) colony on the surrounding vegetation and the biometrical features of three undergrowth species. Polish Journal of Ecology 56: 65–74.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-9ff9b989-58db-4a57-9768-1b7d83aefbb3
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.