ShipleyParent1991

Référence

Shipley, B. and 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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