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| Author |
Lumsden, P. J., & Furuya, M. |
| Title |
Evidence for Two Actions of Light in the Photoperiodic Induction of Flowering in <italic>Pharbitis nil</italic> |
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Journal Article |
| Year |
1986 |
Publication |
Plant and Cell Physiology |
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| Keywords |
Plants |
| Abstract |
Using one-day-old light-grown seedlings of Pharbitis nil we have shown that there are two distinct responses to light during the inductive dark period. The first is the classic night-break, which inhibits flowering at a specific stage of the circadian rhythm (assumed to be the basis of dark time measurement). The second action is to control the phase of this rhythm. The two responses were compared at the 6th and 8th hour of darkness. They differed in their dose responses, and by using very short exposures it was possible to achieve one response without the other. The response of the rhythm to light displayed characteristics of other circadian rhythms; the direction and sensitivity of the phase shift changed between the 6th and 8th h, the rhythm was reset by longer exposures to light, and with one critical light treatment at the appropriate phase, the rhythm was apparently abolished. These results offer direct support for an external coincidence model in the photoperiodic control of floral induction. |
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1471-9053 |
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IDA @ intern @ |
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2375 |
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| Author |
Siemens, C.W. |
| Title |
III. On the influence of electric light upon vegetation, and on certain physical principles involved |
Type |
Journal Article |
| Year |
1880 |
Publication |
Proceedings of the Royal Society of London |
Abbreviated Journal |
Abstr. Pap. Printed Phil. Trans. R. Soc. Lond. |
| Volume |
30 |
Issue |
200-205 |
Pages |
210-219 |
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Plants |
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0370-1662 |
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GFZ @ kyba @ |
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2376 |
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| Author |
Adams, J. |
| Title |
Duration of Light and Growth |
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Journal Article |
| Year |
1924 |
Publication |
Annals of Botany |
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38 |
Issue |
151 |
Pages |
509-523 |
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Plants |
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GFZ @ kyba @ |
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2391 |
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| Author |
Adams, J. |
| Title |
Some Further Experiments On The Relation Of Light To Growth |
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Journal Article |
| Year |
1925 |
Publication |
American Journal of Botany |
Abbreviated Journal |
American Journal of Botany |
| Volume |
12 |
Issue |
7 |
Pages |
398-412 |
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0002-9122 |
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2393 |
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| Author |
Karling, J.S. |
| Title |
A Preliminary Account of the Influence of Light and Temperature on Growth and Reproduction in Chara fragilis |
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Journal Article |
| Year |
1924 |
Publication |
Bulletin of the Torrey Botanical Club |
Abbreviated Journal |
Bulletin of the Torrey Botanical Club |
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51 |
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12 |
Pages |
469 |
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0040-9618 |
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no |
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GFZ @ kyba @ |
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2404 |
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