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Web URL(s): | http://www.nrcresearchpress.com/doi/pdf/10.1139/b97-160 Last checked: 09/30/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Reekie, Edward G. |
Author Affiliation: | Biology Department, Acadia University, Wolfville, Novia Scotia, Canada |
Title: | An explanation for size-dependent reproductive allocation in Plantago major |
Section: | Ecology Other records with the "Ecology" Section
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Source: | Canadian Journal of Botany. Vol. 76, No. 1, January 1998, p. 43-50. |
Publishing Information: | Vancouver, British Columbia: The National Research Council of Canada. |
# of Pages: | 8 |
Related Web URL: | http://www.nrcresearchpress.com/doi/abs/10.1139/b97-160 Last checked: 09/30/2015 Notes: English abstract only |
Keywords: | TIC Keywords: Reproduction; Plantago major; Growth; Canopy; Mowing height; Morphology; Selection; Habitats
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Abstract/Contents: | "This study examined whether variation in reproductive allocation with size could be explained by differences in the trade-off between reproduction and growth. Seeds from 42 half-sibling families were collected from sites differing in mowing frequency and availability of light, nutrients, and water. Six seedlings from each family were grown in controlled environments and photoperiod manipulations were used to control reproduction. Mass of vegetative and reproductive plants of the same family were compared to assess the trade-off between reproduction and growth. Families collected from habitats with a tall canopy were larger and experienced a greater decrease in growth with reproduction than families from habitats where mowing maintained a short canopy. Reproductive output showed no relationship with size, while reproductive allocation (capsule mass to vegetative mass) decreased with size. This decrease may be a direct consequence of the increase in reproductive cost with size. The increase in cost can be partially explained by increased allocation to reproductive support structures; large individuals produce capsules on more elongate scapes and have a lower capsule to scape ratio. Differences in size and morphology among habitats are presumably the result of selection to avoid damage in mown sites and to avoid shade and ensure pollination in sites with a tall canopy and reduced wind movement." |
Language: | English |
References: | 31 |
Note: | Abstract also appears in French Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Reekie, E. G. 1998. An explanation for size-dependent reproductive allocation in Plantago major. Can. J. Bot. 76(1):p. 43-50. |
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| Web URL(s): http://www.nrcresearchpress.com/doi/pdf/10.1139/b97-160 Last checked: 09/30/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: QK 1 .C3 |
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