Adventitious root production and plastic resource allocation to biomass determine burial tolerance in woody plants from central Canadian coastal dunes.

Background And Aims: Burial is a recurrent stress imposed upon plants of coastal dunes. Woody plants are buried on open coastal dunes and in forested areas behind active blowouts; however, little is known about the burial responses and adaptive traits of these species. The objectives of this study were: (a) to determine the growth and morphological responses to burial in sand of seven woody plant species native to central Canadian coastal dunes; and (b) to identify traits that determine burial tolerance in these species.

The role of ethylene and darkness in accelerated shoot elongation of Ammophila breviligulata upon sand burial.

The impact of elevated ethylene concentrations and darkness on the growth and development of shoot organs of Ammophila breviligulata was investigated under experimental conditions in a complete two-way design. The results were compared with data of partially sand buried plants. Enhanced ethylene concentrations and sand burial stimulated the formation of new stem nodes, a prerequisite for burial-induced shoot elongation.

Reproductive capacity, germination and survivorship of Lithospermum caroliniense on Lake Huron sand dunes.

The flowering of pin (long-styled) and thrum (short-styled) plants in populations of Lithospermum caroliniense (Walt.) McMill. was synchronized and both morphs had an extended period of flowering.

Morphology of caryopses, seedlings and seedling emergence of the grass Calamovilfa longifolia from various depths in sand.

The spikelets of the grass Calamovilfa longifolia (Hook) Scribn. are one flowered and the dispersal unit is composed of a caryopsis (3.5 mm long and 0.