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    • Journal of Range Management, Volume 53 (2000)
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    Tiller recruitment patterns and biennial tiller production in prairie sandreed

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    Author
    Hendrickson, J. R.
    Moser, L. E.
    Reece, P. E.
    Issue Date
    2000-09-01
    Keywords
    emergence
    recruitment
    Calamovilfa longifolia
    rain
    Nebraska
    weight
    tillering
    tillers
    biomass
    seasonal variation
    warm-season grass
    tiller demography
    Calamovilfa longifolia (Hook.)
    Scribn.
    grassland ecology
    population ecology/biology
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    Citation
    Hendrickson, J. R., Moser, L. E., & Reece, P. E. (2000). Tiller recruitment patterns and biennial tiller production in prairie sandreed. Journal of Range Management, 53(5), 537-543.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643805
    DOI
    10.2307/4003655
    10.2458/azu_jrm_v53i5_hendrickson
    Additional Links
    https://rangelands.org/
    Abstract
    Tiller recruitment is an essential process for ensuring the perenniality of grasses. The timing and extent of tiller recruitment and the role of biennial tillers must be documented for key range species. Prairie sandreed [Calamovilfa longifolia (Hook) Scribn.] is an important grass in the Nebraska Sandhills for both ecological functioning and as a forage. The objective of this study was to document tiller recruitment patterns and the occurrence and contribution of current year and biennial tillers to biomass production in prairie sandreed at 2 locations in Nebraska. Tiller recruitment was monitored at 2-week periods throughout the growing season during a 2-year period. Newly emerged tillers were classified as intravaginal, extravaginal, or rhizomatous tillers and marked with colored wire. Prairie sandreed has an unimodal pattern of tiller recruitment and over 50% of the current year tillers emerged by mid-May and 80% by mid-June. Rate of tiller emergence and absolute number of emerged tillers were poorly correlated with short- and long-term precipitation totals (r < 0.3 P > 0.20). The year after new tillers were marked, biennial tillers and tillers initiated during the current-year were counted and clipped in September for biomass determination Biennial tillers made up only 6 and 20% of the total tiller emergence at these locations and were generally only 30% as large as the new tillers. Extravaginal tillers composed over 78% of the biennial tiller population as a result of both their dominance in emerging populations and the higher percentage of tillers that survived the winter. Current year tillers contributed the most to prairie sandreed forage production and their emergence was largely completed by mid-June. The lack of a relationship between tiller recruitment and precipitation patterns, combined with previous studies of prairie sandreed, indicates that tiller recruitment involves a process that begins the previous growing season.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003655
    Scopus Count
    Collections
    Journal of Range Management, Volume 53, Number 5 (September 2000)

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