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Author Singhal, R. K., Kumar, V., Kumar, M., & Bose, B.
Title (up) 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
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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Call Number IDA @ intern @ Serial 2738
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Author Palmer M; Gibbons R; Bhagavathula R; Holshouser D; Davidson D
Title (up) Roadway lighting's impact on altering soybean growth: Volume 1 Type Journal Article
Year 2017 Publication Illinois Center for Transportation Abbreviated Journal
Volume 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 Palmer, M.; Gibbons, R.; Bhagavathula, R.; Holshouser, D.
Title (up) Roadway Lighting’s Impact on Altering Soybean Growth – Volume 2: LED versus HPS Color Spectral Impact Type Journal Article
Year 2018 Publication Technical Report Abbreviated Journal
Volume FHWA-ICT-18-009 Issue Pages
Keywords Plants
Abstract The impact of roadway lighting on soybean plant growth and development, was measured in situ at three locations in the state of Illinois. These locations were situated in close proximity of each other for the purpose of evaluating whether there was a difference in the soy response to HPS roadway lighting, versus soy lit by a specific model of 4,000K LED roadway lighting. The plant data collection included the reproductive-stage, the plant moisture content, and the dried seed weight after harvest. The impact of the type of roadway lighting on the reproduction stage and normalized yield was within the modeling confidence limits at a level of 90%. Modifications are recommended to the specification for roadway lighting trespass. This will minimize the impact on soybean plants based on the two roadway luminaire designs included in this study.
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Publisher Illinois Center for Transportation/Illinois Department of Transportation Place of Publication Editor
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ISSN 0197-9191 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2264
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Author Cathey, H. M., & Campbell, L. E.
Title (up) Security lighting and its impact on the landscape. Type Journal Article
Year 1975 Publication Journal Of Arboriculture Abbreviated Journal
Volume 1 Issue Pages 181–187
Keywords Plants
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Call Number LoNNe @ kagoburian @ Serial 653
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Author Adams, J.
Title (up) 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 12 Issue 7 Pages 398-412
Keywords Plants
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ISSN 0002-9122 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2393
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