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Author Kadman-Zahavi, A., & Ephrat, E.
Title The efficiency of different light sources in inducing spray carnation flowering Type Journal Article
Year 1982 Publication Scientia Horticulturae Abbreviated Journal
Volume (down) 18 Issue Pages 159--167
Keywords Plants
Abstract Light from Gro-lux fluorescent lamps, as a 4-h night break, was found to be more effective than incandescent light in promoting spray carnation flowering under natural daylight conditions. When the illuminations were applied for 4 h in the middle of the night, the effectiveness of a certain amount of radiant energy from incandescent light was found to be the same whether applied as intermittent or as continuous illumination.
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Call Number IDA @ intern @ Serial 2371
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Author Palmer M; Gibbons R; Bhagavathula R; Holshouser D; Davidson D
Title Roadway lighting's impact on altering soybean growth: Volume 1 Type Journal Article
Year 2017 Publication Illinois Center for Transportation Abbreviated Journal
Volume (down) Research Report No. FHWA - ICT - 17 - 010 Issue Pages
Keywords plants; Lighting
Abstract The impact of roadway lighting on soybean plant growth and development was measured in situ at seven locations in the state of Illinois. The plant data collection included periodic height, reproductive stage, and Normalized Difference Vegetation Index (NDVI), as well as plant moisture content and dried seed weight after harvest. The periodic measurements were made at the same locations over time to determine delays in plant development. The impact of roadway lighting trespass was significant and measurable above thresholds of both horizontal and vertical illuminance as well as a combination of the two. A specification was drafted to minimize the impact of roadway lighting trespass on the soybean, and countermeasures were recommended to control the impact of lighting on the soybean.
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Call Number GFZ @ kyba @ Serial 1943
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Author Shillo, R., & Halevy, A. H.
Title Interaction of photoperiod and temperature in flowering-control of Gypsophila paniculata L Type Journal Article
Year 1982 Publication Scientia Horticulturae Abbreviated Journal
Volume (down) 16 Issue 4 Pages 385-393
Keywords Plants
Abstract Long day promotes flowering of Gysophila paniculata L cultivar ‘Bristol Fairy’. Repeated treatments with GA3 or GA4 + 7 in short days did not promote flowering. The long photoperiod is effective only at relatively high temperatures. At night temperatures below 12°C, the plants remain vegetative even in long days. Efficient artificial lighting is from incandescent lamps at 60–100 lux. Fluorescent lighting (Cool-White) is not effective. Lighting of 4 hours as a night-break or at the end of the night were equally effective, but 4 hours lighting as a day-extension was less effective. Whole-night lighting promoted flowering more than any of the 4-hour lighting regimes. Cyclic lighting of one third light in each cycle promoted flowering to the same extent as continuous lighting. Light intensity during the day has a decisive effect on flower production.
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Call Number IDA @ intern @ Serial 2370
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Author Liu, J.D.; Goodspeed, D.; Sheng, Z.; Li, B.; Yang, Y.; Kliebenstein, D.J.; Braam, J.
Title Keeping the rhythm: light/dark cycles during postharvest storage preserve the tissue integrity and nutritional content of leafy plants Type Journal Article
Year 2015 Publication BMC Plant Biology Abbreviated Journal BMC Plant Biol
Volume (down) 15 Issue Pages 92
Keywords Plants
Abstract BACKGROUND: The modular body structure of plants enables detached plant organs, such as postharvest fruits and vegetables, to maintain active responsiveness to environmental stimuli, including daily cycles of light and darkness. Twenty-four hour light/darkness cycles entrain plant circadian clock rhythms, which provide advantage to plants. Here, we tested whether green leafy vegetables gain longevity advantage by being stored under light/dark cycles designed to maintain biological rhythms. RESULTS: Light/dark cycles during postharvest storage improved several aspects of plant tissue performance comparable to that provided by refrigeration. Tissue integrity, green coloration, and chlorophyll content were generally enhanced by cycling of light and darkness compared to constant light or darkness during storage. In addition, the levels of the phytonutrient glucosinolates in kale and cabbage remained at higher levels over time when the leaf tissue was stored under light/dark cycles. CONCLUSIONS: Maintenance of the daily cycling of light and dark periods during postharvest storage may slow the decline of plant tissues, such as green leafy vegetables, improving not only appearance but also the health value of the crops through the maintenance of chlorophyll and phytochemical content after harvest.
Address Department of BioSciences, Rice University, Houston, TX, 77005, USA. braam@rice.edu
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Language English Summary Language Original Title
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ISSN 1471-2229 ISBN Medium
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Notes PMID:25879637; PMCID:PMC4396971 Approved no
Call Number LoNNe @ kyba @ Serial 1458
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Author Adams, J.
Title Some Further Experiments On The Relation Of Light To Growth Type Journal Article
Year 1925 Publication American Journal of Botany Abbreviated Journal American Journal of Botany
Volume (down) 12 Issue 7 Pages 398-412
Keywords Plants
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ISSN 0002-9122 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2393
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