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Brassica campestris L.: Floral Induction by One Long Day

A strain of Brassica campestris L. responds to a single photoinductive cycle 4 days after sowing. Extending the photoperiod from 8 to 22 or 24 hours, with incandescent light of 538-lux intensity, induced inflorescence in 90 percent of the plants. Inflorescence development was visible on dissection 5...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1966-09, Vol.153 (3740), p.1115-1116
Main Authors: Friend, D. J. C., Helson, V. A.
Format: Article
Language:English
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Summary:A strain of Brassica campestris L. responds to a single photoinductive cycle 4 days after sowing. Extending the photoperiod from 8 to 22 or 24 hours, with incandescent light of 538-lux intensity, induced inflorescence in 90 percent of the plants. Inflorescence development was visible on dissection 5 or 6 days after photoinduction. Floral induction increased with duration and intensity of the supplementary light.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.153.3740.1115