Records |
Author |
Adams, J. |
Title |
The Effect on Certain Plants of altering the Daily Period of Light |
Type |
Journal Article |
Year |
1923 |
Publication |
Annals of Botany |
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Volume  |
37 |
Issue |
145 |
Pages |
75-94 |
Keywords |
Plants |
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GFZ @ kyba @ |
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2406 |
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Author |
Tavhare, S.D.; Nishteswar, K.; Shukla, V.J. |
Title |
Influence of lunar cycles on growth of Ashwagandha (Withania somnifera [L.] Dunal) |
Type |
Journal Article |
Year |
2015 |
Publication |
Ayu |
Abbreviated Journal |
Ayu |
Volume  |
36 |
Issue |
3 |
Pages |
258-264 |
Keywords |
Plants; Moonlight |
Abstract |
INTRODUCTION: Ayurvedic classics have advocated to collect the medicinal plants according to part used and seasons in order to get desired pharmacological action and therapeutic benefits. The logic behind this principle is being validated by recent researches. AIM: To analyze the influence of lunar cycles on growth of Ashwagandha in Shishira and Greeshma Ritu (winter and summer season). MATERIALS AND METHODS: Fourteen small crops of Ashwagandha of average size 10 cm were collected on October 7, 2013, from institute campus and then replantation was done at Charaka Herbal Garden, Gujarat Ayurved University, Jamnagar in an area of 60 cm x 60 cm (l x b). No fertilizers or pesticides were used. The plants were watered daily and plants were uprooted as per lunar cycles for analysis. Eight samples were collected and observed during Shishira and Greeshma season on Pournima (full moon) and Amavasya (new moon) days. The measurements were taken thrice and average values were taken into consideration for study purpose. The variations in morphological characteristics such as length, breadth, weight, and number of roots and twigs were studied through statistical procedure of principle component analysis, which makes interpretation of all possible related variables. RESULTS: Root weight (RW), pith diameter (PD) and internodal distance (ID) were found to be increased on full moon days as compared to new moon days. The maximum RW was observed during Greeshma Aashadha Pournima. CONCLUSION: The study has shown a definite influence of lunar cycles on the growth of the plant parts assessed by RW, PD, and ID that have found to be increased on full moon days as compared to new moon days. |
Address |
Department of Pharmaceutical Chemistry Laboratory, Institute for Post Graduate Teaching and Research Ayurveda, Gujarat Ayurved University, Jamnagar, Gujarat, India |
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0974-8520 |
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PMID:27313411; PMCID:PMC4895751 |
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LoNNe @ kyba @ |
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1559 |
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Author |
Massetti, L. |
Title |
Assessing the impact of street lighting on Platanus x acerifolia phenology |
Type |
Journal Article |
Year |
2018 |
Publication |
Urban Forestry & Urban Greening |
Abbreviated Journal |
Urban Forestry & Urban Greening |
Volume  |
34 |
Issue |
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Pages |
71-77 |
Keywords |
Plants |
Abstract |
Autumn phenology is an important part of the tree growing season that is still poorly understood. In addition to the environmental factors that might affect its timing, there are artificial effects introduced by modern society that could interfere with it, such as the increasing use of artificial light to illuminate urban nights. This study investigates the relationship between outdoor public lighting and leaf senescence of Platanus x acerifolia that constitutes with more than 4000 individuals, and 6% of public greening in Florence, Italy. The difference in autumn phenology under two lighting conditions was assessed by analysing data collected in a real context, using a presence-absence protocol of green leaves on 283 trees during leaf fall season from 2014 to 2017. Trees were classified in two groups of different light exposure. In 2016-2017, data were also collected at Cascine park, the main green area within the city and darker than the monitored sites. According to the analysis, the percentage of trees with green leaves under luminaires was significantly higher than trees far from the luminaires, for all sites from mid-December to the end of January, and this effect was enhanced during 2016-2017 which was characterised by a colder winter. In the same year, the period of absence of green leaves at Cascine started at least 20 days earlier than the other sites. These findings should be taken into consideration by scientists because artificial light could affect autumn phenology and therefore the length of the vegetative season, and by urban greening and light managers during the design and management of public green spaces. Moreover, the presence-absence protocol proved to be suitable for collecting observations because it was easy to perform in a real context. |
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1618-8667 |
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GFZ @ kyba @ |
Serial |
1932 |
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Author |
Myers, L.; Christian, K.; Kirchner, R. |
Title |
Flowering responses of 48 lines of oilseed rape (Brassica spp.) to vernalization and daylength |
Type |
Journal Article |
Year |
1982 |
Publication |
Australian Journal of Agricultural Research |
Abbreviated Journal |
Aust. J. Agric. Res. |
Volume  |
33 |
Issue |
6 |
Pages |
927 |
Keywords |
Plants |
Abstract |
Forty-eight lines of Brassica spp, of diverse origins were grown in the glasshouse either under natural daylengths or daylengths extended to 16 h by artificial illumination. Plants were either unvernalized or had been subjected to 6 weeks at 8¦C day and 6¦C night temperatures as seedlings. Lines could be classified into two major groups, according to whether or not vernalization or long photoperiods were essential for 50% flowering within 21 weeks. In six lines, both vernalization and long days were essential for prompt flowering, while only five lines did not respond to either treatment. Strong interactions between lines and treatments were found in the number of leaves and subtended buds at flowering. The results show that a wide range of responses is obtainable from material currently available, offering considerabk, scope for adaptation to different environments. |
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0004-9409 |
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IDA @ intern @ |
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2369 |
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Author |
Ben-Attia, M.; Reinberg, A.; Smolensky, M.H.; Gadacha, W.; Khedaier, A.; Sani, M.; Touitou, Y.; Boughamni, N.G. |
Title |
Blooming rhythms of cactus Cereus peruvianus with nocturnal peak at full moon during seasons of prolonged daytime photoperiod |
Type |
Journal Article |
Year |
2016 |
Publication |
Chronobiology International |
Abbreviated Journal |
Chronobiol Int |
Volume  |
33 |
Issue |
4 |
Pages |
419-430 |
Keywords |
Plants; Moonlight |
Abstract |
Cereus peruvianus (Peruvian apple cactus) is a large erect and thorny succulent cactus characterized by column-like (cereus [L]: column), that is, candle-shaped, appendages. For three successive years (1100 days), between early April and late November, we studied the flowering patterns of eight cacti growing in public gardens and rural areas of north and central Tunisia, far from nighttime artificial illumination, in relation to natural environmental light, temperature, relative humidity and precipitation parameters. Flower blooming was assessed nightly between 23:00 h and until at least 02:00 h, and additionally around-the-clock at ~1 h intervals for 30 consecutive days during the late summer of each year of study to quantify both nyctohemeral (day-night) and lunar patterns. During the summer months of prolonged daytime photoperiod, flower blooming of C. peruvianus exhibited predictable-in-time variation as “waves” with average period of 29.5 days synchronized by the light of the full moon. The large-sized flower (~16 cm diameter) opens almost exclusively at night, between sunset and sunrise, as a 24 h rhythm during a specific 3-4-day span of the lunar cycle (full moon), with a strong correlation between moon phase and number and proportion of flowers in bloom (ranging from r = +0.59 to +0.91). Black, blue and red cotton sheets were used to filter specific spectral bands of nighttime moonlight from illuminating randomly selected plant appendages as a means to test the hypothesis of a “gating” 24 h rhythm phenomenon of photoreceptors at the bud level. Relative to control conditions (no light filtering), black sheet covering inhibited flower bud induction by 87.5%, red sheet covering by 46.6% and blue sheet covering by 34%, and the respective inhibiting effects on number of flowers in bloom were essentially 100%, ~81% and ~44%. C. peruvianus is a unique example of a terrestrial plant that exhibits a circadian flowering rhythm (peak ~00:00 h) “gated” by 24 h, lunar 29.5-day (bright light of full moon) and annual 365.25-day (prolonged summertime day length) environmental photoperiod cycles. |
Address |
e Departement des Sciences de la Vie, Faculte des Sciences de Bizerte , Universite de Carthage , Zarzouna , Tunisie |
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0742-0528 |
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PMID:27030087 |
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Call Number |
LoNNe @ kyba @ |
Serial |
1411 |
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