EFFECTS OF BURIAL BY SAND ON SEED GERMINATION AND SEEDLING EMERGENCE OF FOUR DUNE SPECIES

DOI Web Site Web Site 被引用文献1件
  • M. A. Maun
    Department of Plant Sciences University of Western Ontario London Ontario N6A 5B7 Canada
  • J. Lapierre
    Department of Plant Sciences University of Western Ontario London Ontario N6A 5B7 Canada

書誌事項

公開日
1986-03
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/j.1537-2197.1986.tb12058.x
公開者
Wiley

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説明

<jats:p>On the beach strand, seedlings of <jats:italic>Cakile edentula, Elymus canadensis,</jats:italic> and <jats:italic>Corispermum hyssopifolium</jats:italic> emerged from mean depths of 3.4, 3.5 and 3.0 cm, respectively. The frequency distribution of the depth of seedling emergence was 1) significantly leptokurtic for <jats:italic>C. edentula</jats:italic> and slightly platykurtic (not significant) for <jats:italic>C. hyssopifolium</jats:italic> and <jats:italic>E. canadensis,</jats:italic> and 2) significantly skewed to the right for <jats:italic>C. edentula</jats:italic> and <jats:italic>E. canadensis</jats:italic> but not for <jats:italic>C. hyssopifolium.</jats:italic> The total germination was not influenced by the burial of seeds at 2, 4, 6, 8, 10 and 12 cm depths except in <jats:italic>Ammophila breviligulata</jats:italic> in which the germination decreased with increasing depth of burial. The rate of emergence and total emergence decreased with increased sowing depth for all four plant species. Species with larger seeds emerged from deeper burial treatments than those with small seeds. The order of ED<jats:sub>50</jats:sub> (the planting depth from which 50% of the seedlings emerged) and ED<jats:sub>max</jats:sub> (the maximum depth from which a seedling emerged) was <jats:italic>C. edentula</jats:italic> (upper seeds) > <jats:italic>E. canadensis</jats:italic> > <jats:italic>C. edentula</jats:italic> (lower seeds) ≖ <jats:italic>C. hyssopifolium</jats:italic> > <jats:italic>A. breviligulata</jats:italic> and it coincided with weight per seed.</jats:p>

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