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    Nebraska sedge (Carex nebraskensis Dewey): Phenology and life history at Tule Meadow, Sierra National Forest, California

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    Author
    Ratliff, R. D.
    Westfall, S. E.
    Issue Date
    1992-03-01
    Keywords
    spring and winter habit
    winter hardiness
    plant development
    life cycle
    Carex
    shoots
    population dynamics
    California
    phenology
    pasture plants
    
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    Citation
    Ratliff, R. D., & Westfall, S. E. (1992). Nebraska sedge (Carex nebraskensis Dewey): Phenology and life history at Tule Meadow, Sierra National Forest, California. Journal of Range Management, 45(2), 210-215.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644752
    DOI
    10.2307/4002786
    Additional Links
    https://rangelands.org/
    Abstract
    To better understand shoot development and population dynamics of Nebraska sedge (Carex nebraskensis Dewey), a valuable mountain meadow forage species, 766 shoots were tagged and studied at Tule Meadow, on the Sierra National Forest, California. A key to its vegetative and reproductive phenologic stages was developed. New shoots emerged throughout the growing season, but mostly in spring. Spring shoots reached the mature vegetative stage before autumn. Late summer and autumn shoots overwintered in juvenile vegetative stages. About 3% of each year's cohort of shoots died as juveniles. Early emerging shoots passed at least 1 winter but late emerging shoots passed at least 2 winters before flowering. Among shoots reaching the mature vegetative stage, 60% eventually flowered and died. An average of 90% of the vegetative shoots alive each autumn survived winter. A few shoots remained vegetative and had long lives—1 shoot was still alive after 7.5 years. Vegetative shoots (those not becoming reproductive) of the 1980 and 1981 cohorts lived an average of 599 +/- 50 days. Shoots that became reproductive (flowered) lived an average of 631 +/- 17 days, and time from shoot emergence to culm elongation averaged 501 +/- 18 days. Nebraska sedge appears well adapted to grazing by having long-lived vegetative shoots that can produce new herbage for several years. Nevertheless, grazing management should strive to maximize the numbers of shoots in spring because they are the ones that can flower the next season.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002786
    Scopus Count
    Collections
    Journal of Range Management, Volume 45, Number 2 (March 1992)

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