The ecology of flower and bulbil production in Polygonum viviparum
Polygonum viviparum produces inflorescences which bear both sexual flowers and asexual bulbils in highly variable proportions. This paper investigates the proportion of flowers and bulbils per inflorescence at 12 sites in central Norway. It is shown that there is a ‘trade—off between flowers and bul...
Published in: | Nordic Journal of Botany |
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crwiley:10.1111/j.1756-1051.1983.tb01468.x 2023-12-03T10:29:21+01:00 The ecology of flower and bulbil production in Polygonum viviparum Law, R. Cook, R. E. D. Manlove, R. J. 1983 http://dx.doi.org/10.1111/j.1756-1051.1983.tb01468.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1983.tb01468.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1983.tb01468.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 3, issue 5, page 559-566 ISSN 0107-055X 1756-1051 Plant Science Ecology, Evolution, Behavior and Systematics journal-article 1983 crwiley https://doi.org/10.1111/j.1756-1051.1983.tb01468.x 2023-11-09T13:16:27Z Polygonum viviparum produces inflorescences which bear both sexual flowers and asexual bulbils in highly variable proportions. This paper investigates the proportion of flowers and bulbils per inflorescence at 12 sites in central Norway. It is shown that there is a ‘trade—off between flowers and bulbils so that one cannot be increased without reducing the other’. On average, the balance is tilted in favour of bulbils, but there are significant differences in the proportion of bulbils per inflorescence among sites and among quadrats within 11 of the sites. Of these 11 sites there are 6 in which the proportion of bulbils per inflorescence is correlated with factors of the biotic environment. The factors include: (1) the amount of vascular plant cover, which is negatively correlated with the proportion of bulbils at 2 sites; (2) the cover of P. viviparum , which is positively correlated at 1 site; (3) the number of P. viviparum inflorescences, which is negatively correlated at 3 sites. The results suggest that both intra– and inter–specific factors of the biotic environment play a role in the control of bulbil and flower production in P. viviparum. Article in Journal/Newspaper Polygonum viviparum Wiley Online Library (via Crossref) Norway Nordic Journal of Botany 3 5 559 566 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology, Evolution, Behavior and Systematics Law, R. Cook, R. E. D. Manlove, R. J. The ecology of flower and bulbil production in Polygonum viviparum |
topic_facet |
Plant Science Ecology, Evolution, Behavior and Systematics |
description |
Polygonum viviparum produces inflorescences which bear both sexual flowers and asexual bulbils in highly variable proportions. This paper investigates the proportion of flowers and bulbils per inflorescence at 12 sites in central Norway. It is shown that there is a ‘trade—off between flowers and bulbils so that one cannot be increased without reducing the other’. On average, the balance is tilted in favour of bulbils, but there are significant differences in the proportion of bulbils per inflorescence among sites and among quadrats within 11 of the sites. Of these 11 sites there are 6 in which the proportion of bulbils per inflorescence is correlated with factors of the biotic environment. The factors include: (1) the amount of vascular plant cover, which is negatively correlated with the proportion of bulbils at 2 sites; (2) the cover of P. viviparum , which is positively correlated at 1 site; (3) the number of P. viviparum inflorescences, which is negatively correlated at 3 sites. The results suggest that both intra– and inter–specific factors of the biotic environment play a role in the control of bulbil and flower production in P. viviparum. |
format |
Article in Journal/Newspaper |
author |
Law, R. Cook, R. E. D. Manlove, R. J. |
author_facet |
Law, R. Cook, R. E. D. Manlove, R. J. |
author_sort |
Law, R. |
title |
The ecology of flower and bulbil production in Polygonum viviparum |
title_short |
The ecology of flower and bulbil production in Polygonum viviparum |
title_full |
The ecology of flower and bulbil production in Polygonum viviparum |
title_fullStr |
The ecology of flower and bulbil production in Polygonum viviparum |
title_full_unstemmed |
The ecology of flower and bulbil production in Polygonum viviparum |
title_sort |
ecology of flower and bulbil production in polygonum viviparum |
publisher |
Wiley |
publishDate |
1983 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1983.tb01468.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1983.tb01468.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1983.tb01468.x |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Polygonum viviparum |
genre_facet |
Polygonum viviparum |
op_source |
Nordic Journal of Botany volume 3, issue 5, page 559-566 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1983.tb01468.x |
container_title |
Nordic Journal of Botany |
container_volume |
3 |
container_issue |
5 |
container_start_page |
559 |
op_container_end_page |
566 |
_version_ |
1784254652001288192 |