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Author Singhal, R. K., Kumar, V., Kumar, M., & Bose, B. url  openurl
  Title Responses of different light intensities and continue light during dark period on rice (Oryza sativa L.) seed germination and seedling development Type Journal Article
  Year 2019 Publication Journal of Pharmacognosy and Phytochemistry Abbreviated Journal (up)  
  Volume 8 Issue 4 Pages 2602-2609  
  Keywords Plants  
  Abstract Temperature, humidity and moisture content are the important abiotic component regulating seedling establishment in plants including rice. Light factor intensity and duration are also important environmental factors regulating rice growth and development. In the growth and development of rice crop germination followed by seedling establishment is the foremost and very important growth stages. Light component such as intensity, direction and duration are the regulating factor for several physiological, biochemical and molecular processes in plants. To consider these facts, in the present piece of work rice seed of HUR-105 grown under different light regimes, from T1 (2000 lux for 12 h during day time + 12 h dark period) (lower light intensity), T2 (4000 lux for 12 h during day time+ 12 h dark period), T3 (6000 lux for 12 h during day time + 12 h dark period) (moderate), T4 (9000 lux for 12 h during day time + 12 h dark period) (optimum) and to T5 (9000 lux for 12h during day time + 200 lux for 12 h during night time). Germination, seedling growth and biochemical parameters were observed at different time intervals. It was observed that germination %, germination index (GI), germination rate index (GRI), coefficient of velocity of germination (CVG), mean germination rate (MGR), seedling vigour (SV), α-amylase activity and soluble sugar content significantly reduced in both the treatments T1 and T5. Further, the mean time germination and insoluble sugar content were increased in T1 and T5 treatment. The present experiment concluded that both lower light intensity (T1) and addition of low light during dark period (considered as night light pollution) causes stress condition and reduce germination and seedling establishment potential of rice crop.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2738  
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Author Siemens, C.W. url  doi
openurl 
  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 (up) Abstr. Pap. Printed Phil. Trans. R. Soc. Lond.  
  Volume 30 Issue 200-205 Pages 210-219  
  Keywords Plants  
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  Series Volume Series Issue Edition  
  ISSN 0370-1662 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2376  
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Author Kwak, M.J.; Lee, S.H.; Khaine, I.; Je, S.M.; Lee, T.Y.; You, H.N.; Lee, H.K.; Jang, J.H.; Kim, I.; Woo, S.Y. url  doi
openurl 
  Title Stomatal movements depend on interactions between external night light cue and internal signals activated by rhythmic starch turnover and abscisic acid (ABA) levels at dawn and dusk Type Journal Article
  Year 2017 Publication Acta Physiologiae Plantarum Abbreviated Journal (up) Acta Physiol Plant  
  Volume 39 Issue 8 Pages  
  Keywords Plants  
  Abstract Yellow poplar (Liriodendron tulipifera L.) is a widespread hardwood tree of great ecological and economic value. Light pollution caused by excessive and indiscriminate exposure to artificial night light has emerged as a new risk factor due to its adverse effects related to energy waste, sleep disorders, anthropogenic habitat disturbance, and perceptual disorder of daily and seasonal rhythms in wildlife. However, it remains unknown how associations between artificial night light and stomatal behaviors controlled by internal signals are established. After continuous exposure to artificial light at night over 3 years, leaves in the experimental set-up were measured for stomatal movements, starch turnover, endogenous abscisic acid (ABA) levels, and chloroplast ultrastructure during the growing season. Yellow poplar showed dynamic changes in stomatal movement, starch turnover, and endogenous ABA levels in response to day/artificial night light cycle, resulting in reduction of circadian phase-shifting capacity at both dusk and dawn and normal chloroplast development as compared with natural night. Nighttime light exposure may act as a major factor for disorder of circadian and circannual rhythms as well as physiological and ultrastructural repressor in plants, via a modification of the perceived photoperiod. Our study suggests that these dynamic responses can provide advantageous insights that complement the current knowledge on light pollution.  
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  ISSN 0137-5881 ISBN Medium  
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  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1682  
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Author Matzke, E. B. url  openurl
  Title The Effect of Street Lights in Delaying Leaf-Fall in Certain Trees Type Journal Article
  Year 1936 Publication American Journal of Botany Abbreviated Journal (up) Amer. J. of Botany  
  Volume 23 Issue 6 Pages 446-452  
  Keywords Plants; trees; Carolina poplar; Populus canadensis; London plane; Platanus acerifolia; sycamore; Platanus occidentalis; crack willow; Salix fragilis; New York; New York City  
  Abstract Street lights in the City of New York cause a retention of the leaves of certain trees: Carolina poplar (Populus canadensis), London plane (Platanus acerifolia), sycamore (Platanus occidentalis), and crack willow (Salix fragilis). Illuminated portions of a tree retain their leaves; shaded portions of the same tree do not. One side of a tree, or the lower part, may thus have numerous leaves, while the other side, and the upper part, may be entirely devoid of foliage. A relatively weak light, at a distance of as much as 45 feet from the tip of the nearest branch, may cause retention of numerous leaves. Light intensity as low as 1 foot candle, or less, may be effective. Some leaves may be retained at least a month, others more than that, beyond the normal season. The orientation of the light with respect to the tree – i.e., north, east, south, and west – is not significant. In Populus canadensis all of the leaves ultimately fall, abscission apparently taking place at the base of the petiole. In Platanus acerifolia and Platanus occidentalis some of the leaves are retained until killed by low temperature; then some of them break off above the base of the petiole. Leaves of the Populus and Platanus species discussed remain green unusually long when receiving additional illumination. Leaves of these same trees do not emerge from the buds earlier in the spring as a result of the additional illumination.  
  Address n/a  
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  Publisher JSTOR Place of Publication Editor  
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  ISSN 0002-9122 ISBN Medium  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 1394  
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Author Adams, J. url  doi
openurl 
  Title Some Further Experiments On The Relation Of Light To Growth Type Journal Article
  Year 1925 Publication American Journal of Botany Abbreviated Journal (up) American Journal of Botany  
  Volume 12 Issue 7 Pages 398-412  
  Keywords Plants  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0002-9122 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2393  
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