ZimmermanLechowicz1982

Référence

Zimmerman, J.K., Lechowicz, M.J. (1982) Responses to moisture stress in male and female plants of Rumex acetosella L. ( Polygonaceae). Oecologia, 53(3):305-309.

Résumé

The growth of both sexes declined under water stress but males were significantly more drought tolerant. This could not be explained by greater water use efficiency in the male plants. The sexes differed at all moisture regimes in their overall patterns of biomass allocation. Males had proportionately greater investment in root and leaf tissue which could explain their growth advantage over females under water stress. Despite essentially equal water use efficiencies, on a per plant basis males, with more leaf and root biomass, could fix more carbon and more rapidly exploit the local water resource than females. Thus the pattern of biomass allocation rather than intrinsic physiological differences appears to explain the greater drought tolerance of male plants of Rumex acetosella. -from Authors

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@ARTICLE { ZimmermanLechowicz1982,
    AUTHOR = { Zimmerman, J.K. and Lechowicz, M.J. },
    TITLE = { Responses to moisture stress in male and female plants of Rumex acetosella L. ( Polygonaceae) },
    JOURNAL = { Oecologia },
    YEAR = { 1982 },
    VOLUME = { 53 },
    PAGES = { 305-309 },
    NUMBER = { 3 },
    NOTE = { 00298549 (ISSN) Cited By (since 1996): 8 Export Date: 26 April 2007 Source: Scopus Language of Original Document: English },
    ABSTRACT = { The growth of both sexes declined under water stress but males were significantly more drought tolerant. This could not be explained by greater water use efficiency in the male plants. The sexes differed at all moisture regimes in their overall patterns of biomass allocation. Males had proportionately greater investment in root and leaf tissue which could explain their growth advantage over females under water stress. Despite essentially equal water use efficiencies, on a per plant basis males, with more leaf and root biomass, could fix more carbon and more rapidly exploit the local water resource than females. Thus the pattern of biomass allocation rather than intrinsic physiological differences appears to explain the greater drought tolerance of male plants of Rumex acetosella. -from Authors },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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