ShipleyParent1991

Référence

Shipley, B., Parent, M. (1991) Germination responses of 64 wetland species in relation to seed size, minimum time to reproduction and seedling relative growth rate. Functional Ecology, 5(1):111-118.

Résumé

Three germination attributes (lag time, maximum germination rate, and final germination proportion) were measured. Environmental conditions approximated the drawdown environment known to stimulate germination in wetland plants: a period of cold stratification followed by position of the seed on the surface of wet, but not inundated, substrate in the presence of light and with a 20/30°C daily temperature cycle. Average seed weight was not correlated with any of the 3 germination attributes studied. Seedling relative growth rate was negatively correlated with time to initiation of germination. Species capable of setting seed their 1st year initiated germination sooner, a larger proportion germinated per day once germination began, and a larger proportion of seeds had germinated by the end of the experiment in comparison with species which require >1 yr to set seed. The time to initiation of germination could accurately classify 89% of the perennial species as being either facultative annuals or obligate perennials. -from Authors

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@ARTICLE { ShipleyParent1991,
    AUTHOR = { Shipley, B. and Parent, M. },
    TITLE = { Germination responses of 64 wetland species in relation to seed size, minimum time to reproduction and seedling relative growth rate },
    JOURNAL = { Functional Ecology },
    YEAR = { 1991 },
    VOLUME = { 5 },
    PAGES = { 111-118 },
    NUMBER = { 1 },
    NOTE = { 02698463 (ISSN) Cited By (since 1996): 42 Export Date: 26 April 2007 Source: Scopus Language of Original Document: English },
    ABSTRACT = { Three germination attributes (lag time, maximum germination rate, and final germination proportion) were measured. Environmental conditions approximated the drawdown environment known to stimulate germination in wetland plants: a period of cold stratification followed by position of the seed on the surface of wet, but not inundated, substrate in the presence of light and with a 20/30°C daily temperature cycle. Average seed weight was not correlated with any of the 3 germination attributes studied. Seedling relative growth rate was negatively correlated with time to initiation of germination. Species capable of setting seed their 1st year initiated germination sooner, a larger proportion germinated per day once germination began, and a larger proportion of seeds had germinated by the end of the experiment in comparison with species which require >1 yr to set seed. The time to initiation of germination could accurately classify 89% of the perennial species as being either facultative annuals or obligate perennials. -from Authors },
    KEYWORDS = { germination relative growth rate reproduction seed size wetland },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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