serotinous


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serotinous

[sə′rät·ən·əs]
(botany)
Plants which flower or develop late in a season.
References in periodicals archive ?
This study focused on two native, strongly serotinous and obligate reseeding members of the Proteaceae family: Hakea decurrens subsp.
The proportion of prefire serotinous lodgepole pine trees was recorded within a 50-m radius of the sampling point in 1992 following methods in Tinker et al.
After that blaze, small lodgepole seedlings sprouted from seeds dropped by serotinous cones.
A key question, then, is whether or not seeds held in serotinous cones remain viable for years after the tree has died.
latifolia produced both serotinous and nonserotinous cones.
Therefore, a strict view of Ocala sand pine as serotinous and Choctawhatchee sand pine as nonserotinous is oversimplified, and varietal segregation has been questioned (Myers, 1990).
This mixture includes species with several adaptations to fire: root-sprouting ability and abundant seeds with good long-distance dispersal (quaking aspen, Populus tremuloides and paper birch, Betula papyrifera); serotinous cones stored high in the canopy (jack pine, Pinus banksiana and black spruce, Picea mariana); or thick bark that allows individuals to survive fires and reseed the area later (red pine, Pinus resinosa).
This alternative, although not mutually exclusive with the predation hypothesis, can be eliminated for limber pine: its cones are not serotinous, and limber pine experiences fire only infrequently (see McCune 1988).
The cones of Table Mountain pine, like those of many fire-dependent pines, are serotinous, meaning they remain closed for some time after maturity and open only after exposure to high temperatures, like those associated with forest fires.
GDD in serotinous varieties (80-12-1) is more than the early varieties (80-17), consequently late varieties in during the growing season, need to more GDD to complete their growing.
Seed banks accumulate either in serotinous cones and fruits, where seeds are maintained in a quiescent state within the canopy, or in the soil, where deep dormancy delays germination until fire.
1979) termed this type a pygmy forest and defined it as having dense stands of pines of very low stature, many with serotinous cones, few or no tree oaks but scrub oaks and some ericaceous shrubs.