The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum )
The flowers of the arctic poppy (Papaver radicatum L.) track the sun, and the petals of the flowers reflect light towards the ovary. This study investigated the importance of petals to reproductive success in this species. We measured light intensity, ovary temperature, seed weight, and number of se...
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Language: | English |
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Canadian Science Publishing
1992
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Online Access: | http://dx.doi.org/10.1139/b92-027 http://www.nrcresearchpress.com/doi/pdf/10.1139/b92-027 |
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crcansciencepubl:10.1139/b92-027 2024-04-28T08:09:01+00:00 The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) Corbett, Andrea L. Krannitz, Pam G. Aarssen, Lonnie W. 1992 http://dx.doi.org/10.1139/b92-027 http://www.nrcresearchpress.com/doi/pdf/10.1139/b92-027 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 70, issue 1, page 200-204 ISSN 0008-4026 Plant Science journal-article 1992 crcansciencepubl https://doi.org/10.1139/b92-027 2024-04-02T06:55:54Z The flowers of the arctic poppy (Papaver radicatum L.) track the sun, and the petals of the flowers reflect light towards the ovary. This study investigated the importance of petals to reproductive success in this species. We measured light intensity, ovary temperature, seed weight, and number of seeds produced by flowers that had their petals removed versus flowers with their petals intact. Flowers without petals do not track the sun. Irradiance was greater when the photocell was held coincident with the angle of sun-tracking flowers than when facing upward. Flowers with petals had significantly higher overy temperatures both at the ovary surface and in the ovary interior than did flowers lacking petals. In pairs of flowers on the same individual plant, those with their petals removed had significantly fewer and smaller seeds than control flowers with petals intact. There were site differences in the significance of the treatment effect, but not in the magnitude of the differences between flowers with and without petals. Therefore, the presence of petals resulted in increased irradiance and temperature at and in the ovary, which affected reproductive success. Key words: heliotropism, Papaver radicatum, petals, reproductive success, temperature. Article in Journal/Newspaper Arctic arctic poppy Papaver radicatum Canadian Science Publishing Canadian Journal of Botany 70 1 200 204 |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
topic |
Plant Science |
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Plant Science Corbett, Andrea L. Krannitz, Pam G. Aarssen, Lonnie W. The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
topic_facet |
Plant Science |
description |
The flowers of the arctic poppy (Papaver radicatum L.) track the sun, and the petals of the flowers reflect light towards the ovary. This study investigated the importance of petals to reproductive success in this species. We measured light intensity, ovary temperature, seed weight, and number of seeds produced by flowers that had their petals removed versus flowers with their petals intact. Flowers without petals do not track the sun. Irradiance was greater when the photocell was held coincident with the angle of sun-tracking flowers than when facing upward. Flowers with petals had significantly higher overy temperatures both at the ovary surface and in the ovary interior than did flowers lacking petals. In pairs of flowers on the same individual plant, those with their petals removed had significantly fewer and smaller seeds than control flowers with petals intact. There were site differences in the significance of the treatment effect, but not in the magnitude of the differences between flowers with and without petals. Therefore, the presence of petals resulted in increased irradiance and temperature at and in the ovary, which affected reproductive success. Key words: heliotropism, Papaver radicatum, petals, reproductive success, temperature. |
format |
Article in Journal/Newspaper |
author |
Corbett, Andrea L. Krannitz, Pam G. Aarssen, Lonnie W. |
author_facet |
Corbett, Andrea L. Krannitz, Pam G. Aarssen, Lonnie W. |
author_sort |
Corbett, Andrea L. |
title |
The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
title_short |
The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
title_full |
The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
title_fullStr |
The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
title_full_unstemmed |
The influence of petals on reproductive success in the arctic poppy ( Papaver radicatum ) |
title_sort |
influence of petals on reproductive success in the arctic poppy ( papaver radicatum ) |
publisher |
Canadian Science Publishing |
publishDate |
1992 |
url |
http://dx.doi.org/10.1139/b92-027 http://www.nrcresearchpress.com/doi/pdf/10.1139/b92-027 |
genre |
Arctic arctic poppy Papaver radicatum |
genre_facet |
Arctic arctic poppy Papaver radicatum |
op_source |
Canadian Journal of Botany volume 70, issue 1, page 200-204 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b92-027 |
container_title |
Canadian Journal of Botany |
container_volume |
70 |
container_issue |
1 |
container_start_page |
200 |
op_container_end_page |
204 |
_version_ |
1797577517592215552 |