Low red: Far-red light ratio causes faster in vitro flowering in lentil
Artificial light in growth chambers typically has a higher red to far-red (R:FR) ratio compared with natural light. This higher ratio may delay flowering and reduce plant height in some long-day plants. Modification of light spectral quality to lower than the critical threshold of R:FR for a given p...
Published in: | Canadian Journal of Plant Science |
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Canadian Science Publishing
2016
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Online Access: | https://doi.org/10.1139/cjps-2015-0282 |
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ftbioone:10.1139/cjps-2015-0282 2024-06-02T08:07:32+00:00 Low red: Far-red light ratio causes faster in vitro flowering in lentil Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg world 2016-04-27 text/HTML https://doi.org/10.1139/cjps-2015-0282 en eng Canadian Science Publishing doi:10.1139/cjps-2015-0282 All rights reserved. https://doi.org/10.1139/cjps-2015-0282 Text 2016 ftbioone https://doi.org/10.1139/cjps-2015-0282 2024-05-07T01:01:11Z Artificial light in growth chambers typically has a higher red to far-red (R:FR) ratio compared with natural light. This higher ratio may delay flowering and reduce plant height in some long-day plants. Modification of light spectral quality to lower than the critical threshold of R:FR for a given plant species can have important implications with respect to plant structural and physiological traits. The objective of this study was to accelerate lentil (Lens culinaris) flower induction in growth chambers re-fitted with T5 fluorescent bulbs, using supplemental FR bulbs to re-balance the R:FR ratio. Lentil cultivars CDC Greenland and CDC Maxim were grown under three light sources differing in R:FR, namely light emitting diodes (LED; R:FR = 3.09), T5 fluorescent bulbs (R:FR = 5.6), and T5 supplemented with near far-red bulbs (R:FR = 3.1). All three light sources provided 500 µmol m-2 s-1 of photosynthetic photon flux (PPF). Lentil floral induction was significantly affected by the R:FR ratio. Plants grown under R:FR ratios of 3.1 or less flowered 10–11 d earlier than plants grown under an R:FR ratio of 5.6. Both cultivars had the same response to R:FR ratio in terms of days to flowering and flowering rate. Text Greenland BioOne Online Journals Greenland Canadian Journal of Plant Science 96 5 908 918 |
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BioOne Online Journals |
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Artificial light in growth chambers typically has a higher red to far-red (R:FR) ratio compared with natural light. This higher ratio may delay flowering and reduce plant height in some long-day plants. Modification of light spectral quality to lower than the critical threshold of R:FR for a given plant species can have important implications with respect to plant structural and physiological traits. The objective of this study was to accelerate lentil (Lens culinaris) flower induction in growth chambers re-fitted with T5 fluorescent bulbs, using supplemental FR bulbs to re-balance the R:FR ratio. Lentil cultivars CDC Greenland and CDC Maxim were grown under three light sources differing in R:FR, namely light emitting diodes (LED; R:FR = 3.09), T5 fluorescent bulbs (R:FR = 5.6), and T5 supplemented with near far-red bulbs (R:FR = 3.1). All three light sources provided 500 µmol m-2 s-1 of photosynthetic photon flux (PPF). Lentil floral induction was significantly affected by the R:FR ratio. Plants grown under R:FR ratios of 3.1 or less flowered 10–11 d earlier than plants grown under an R:FR ratio of 5.6. Both cultivars had the same response to R:FR ratio in terms of days to flowering and flowering rate. |
author2 |
Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg |
format |
Text |
author |
Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg |
spellingShingle |
Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg Low red: Far-red light ratio causes faster in vitro flowering in lentil |
author_facet |
Saeid H. Mobini Monika Lulsdorf Thomas D. Warkentin Albert Vandenberg |
author_sort |
Saeid H. Mobini |
title |
Low red: Far-red light ratio causes faster in vitro flowering in lentil |
title_short |
Low red: Far-red light ratio causes faster in vitro flowering in lentil |
title_full |
Low red: Far-red light ratio causes faster in vitro flowering in lentil |
title_fullStr |
Low red: Far-red light ratio causes faster in vitro flowering in lentil |
title_full_unstemmed |
Low red: Far-red light ratio causes faster in vitro flowering in lentil |
title_sort |
low red: far-red light ratio causes faster in vitro flowering in lentil |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
https://doi.org/10.1139/cjps-2015-0282 |
op_coverage |
world |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
https://doi.org/10.1139/cjps-2015-0282 |
op_relation |
doi:10.1139/cjps-2015-0282 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1139/cjps-2015-0282 |
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Canadian Journal of Plant Science |
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96 |
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5 |
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908 |
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918 |
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1800752631865409536 |