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Author Eng, R.Y.N.; Tsujita, M.J.; Grodzinski, B.
Title (up) The effects of supplementary HPS lighting and carbon dioxide enrichment on the vegetative growth, nutritional status and flowering characteristics ofChrysanthemum morifoliumRamat Type Journal Article
Year 1985 Publication Journal of Horticultural Science Abbreviated Journal Journal of Horticultural Science
Volume 60 Issue 3 Pages 389-395
Keywords Plants
Abstract Supplementary high pressure sodium (HPS) lighting (140 µmol m−2s−1) and CO2 enrichment (1375 µl l−1) improved the vegetative growth of Chrysanthemum morifolium cv Dramatic by increases in stem length, stem diameter, root weight ratio, dry weight, relative growth and net assimilation rates. Three-week-old chrysanthemums grown under CO2 enrichment and HPS lighting had lower leaf weight and stem weight ratios as well as lower foliar nutrient content than those grown under ambient CO2 and natural light. Plants grown on to maturity under CO2 enrichment and supplementary HPS lighting had the longest stem lengths, the most flowers and greatest increase in dry weight. The combination of both additional light and CO2 was superior to either factor used alone. With 24 h HPS supplementary lighting CO2 enrichment was most effective in improving vegetative growth and flower quality when applied during the daytime. Night CO2 enrichment was not commercially beneficial at the light levels employed in this study.
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ISSN 0022-1589 ISBN Medium
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Notes Approved no
Call Number IDA @ intern @ Serial 2373
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Author Kadman-Zahavi, A., & Ephrat, E.
Title (up) The efficiency of different light sources in inducing spray carnation flowering Type Journal Article
Year 1982 Publication Scientia Horticulturae Abbreviated Journal
Volume 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 Reinberg, A.; Smolensky, M.H.; Touitou, Y.
Title (up) The full moon as a synchronizer of circa-monthly biological rhythms: Chronobiologic perspectives based on multidisciplinary naturalistic research Type Journal Article
Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiol Int
Volume 33 Issue 5 Pages 465-479
Keywords Moonlight; Commentary; Animals; Plants; Human Health
Abstract Biological rhythmicity is presumed to be an advantageous genetic adaptation of fitness and survival value resulting from evolution of life forms in an environment that varies predictably-in-time during the 24 h, month, and year. The 24 h light/dark cycle is the prime synchronizer of circadian periodicities, and its modulation over the course of the year, in terms of daytime photoperiod length, is a prime synchronizer of circannual periodicities. Circadian and circannual rhythms have been the major research focus of most scientists. Circa-monthly rhythms triggered or synchronized by the 29.5 day lunar cycle of nighttime light intensity, or specifically the light of the full moon, although explored in waterborne and certain other species, have received far less study, perhaps because of associations with ancient mythology and/or an attitude naturalistic studies are of lesser merit than ones that entail molecular mechanisms. In this editorial, we cite our recent discovery through multidisciplinary naturalistic investigation of a highly integrated circadian, circa-monthly, and circannual time structure, synchronized by the natural ambient nyctohemeral, lunar, and annual light cycles, of the Peruvian apple cactus (C. peruvianus) flowering and reproductive processes that occur in close temporal coordination with like rhythms of the honey bee as its pollinator. This finding led us to explore the preservation of this integrated biological time structure, synchronized and/or triggered by environmental light cues and cycles, in the reproduction of other species, including Homo sapiens, and how the artificial light environment of today in which humans reside may be negatively affecting human reproduction efficiency.
Address a Unite de Chronobiologie , Fondation A de Rothschild , Paris cedex 19 , France
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Language English Summary Language Original Title
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ISSN 0742-0528 ISBN Medium
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Notes PMID:27019304 Approved no
Call Number LoNNe @ kyba @ Serial 1460
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Author Clark, N.A.
Title (up) The Rate of Reproduction of Lemna Major as a Function of Intensity and Duration of Light Type Journal Article
Year 1924 Publication The Journal of Physical Chemistry Abbreviated Journal J. Phys. Chem.
Volume 29 Issue 8 Pages 935-941
Keywords Plants
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ISSN 0092-7325 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2374
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Author Moore, B.
Title (up) The Relative Length of Day and Night Type Journal Article
Year 1920 Publication Ecology Abbreviated Journal
Volume 1 Issue 3 Pages 234-237
Keywords Plants
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ISSN 0012-9658 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2407
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