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1.


   
    Increased BLSS closure using mineralized human waste in plant cultivation on a neutral substrate / S. Ushakova [et al.] // Advances in Space Research. - 2009. - Vol. 44, Is. 8. - P971-978, DOI 10.1016/j.asr.2009.06.003 . - ISSN 0273-1177
Кл.слова (ненормированные):
Biological life support system -- Crops -- Human waste recycling -- Hydroponics -- Biological life support system -- Biological life support systems -- Biological productivity -- Control experiments -- Control plants -- Environmental conditions -- Expanded clay -- Human waste -- Human waste recycling -- Hydroponics -- In-plants -- Macro element -- Mineral element -- Neutral solution -- Nutrient solution -- Photosynthetic apparatus -- Pisum sativum -- Plant growth -- Scale potential -- Spring wheat -- Triticum aestivum -- Vegetation periods -- Water extracts -- Wheat straws -- Clay minerals -- Crops -- Minerals -- Mining -- Nutrients -- Pilot plants -- Plant life extension -- Potassium -- Productivity -- Recycling -- Solvent extraction -- Vegetation -- Water content -- Plant shutdowns
Аннотация: The purpose of this work was to study the full-scale potential use of human mineralized waste (feces and urine) as a source of mineral elements for plant cultivation in a biological life support system (BLSS). Plants that are potential candidates for a photosynthesizing link were grown on a neutral solution containing human mineralized waste. Spring wheat Triticum aestivum L., peas Pisum sativum L. Ambrosia cultivar and leaf lettuce Lactuca sativa L., Vitaminny variety, were used. The plants were grown hydroponically on expanded clay aggregates in a vegetation chamber in constant environmental conditions. During plant growth, a determined amount of human mineralized waste was added daily to the nutrient solution. The nutrient solution remained unchanged throughout the vegetation period. Estimated plant requirements for macro-elements were based on a total biological productivity of 0.04 kg day-1 m-2. As the plant requirements for potassium exceeded the potassium content of human waste, a water extract of wheat straw containing the required amount of potassium was added to the nutrient solution. The Knop's solution was used in the control experiments. The experimental and control plants showed no significant differences in state or productivity of their photosynthetic apparatus. A small decrease in total productivity of the experimental plants was observed, which might result in some reduction of O{cyrillic}2 production in a BLSS. В© 2009 COSPAR.

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Держатели документа:
Institute of Biophysics, SB, RAS, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Universite Blaise-Pascal, LGCB, Polytech, BP206, 63174 Aubiere cedex, France
TEC-MCT, ESA/Estec, 1 Keplerlaan, 2201 AZ Noordwijk, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.; Tikhomirov, A.; Shikhov, V.; Kudenko, Yu.; Anischenko, O.; Gros, J.-B.; Lasseur, Ch.

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2.


   
    Tolerance of wheat and lettuce plants grown on human mineralized waste to high temperature stress / S. A. Ushakova [et al.] // Advances in Space Research. - 2013. - Vol. 51, Is. 11. - P2075-2083, DOI 10.1016/j.asr.2013.01.017 . - ISSN 0273-1177
Кл.слова (ненормированные):
Air temperature step -- BLSS -- Heat resistance -- Human waste recycling -- Lettuce -- Wheat -- Air temperature -- BLSS -- Human waste -- Lettuce -- Wheat -- Atmospheric temperature -- Electromagnetic field effects -- Electromagnetic fields -- Gas plants -- Heat resistance -- Oxygen supply -- Plants (botany) -- Productivity -- Specific heat -- Thermal stress -- Waste utilization -- Plant shutdowns
Аннотация: The main objective of a life support system for space missions is to supply a crew with food, water and oxygen, and to eliminate their wastes. The ultimate goal is to achieve the highest degree of closure of the system using controlled processes offering a high level of reliability and flexibility. Enhancement of closure of a biological life support system (BLSS) that includes plants relies on increased regeneration of plant waste, and utilization of solid and liquid human wastes. Clearly, the robustness of a BLSS subjected to stress will be substantially determined by the robustness of the plant components of the phototrophic unit. The aim of the present work was to estimate the heat resistance of two plants (wheat and lettuce) grown on human wastes. Human exometabolites mineralized by hydrogen peroxide in an electromagnetic field were used to make a nutrient solution for the plants. We looked for a possible increase in the heat tolerance of the wheat plants using changes in photosynthetically active radiation (PAR) intensity during heat stress. At age 15 days, plants were subjected to a rise in air temperature (from 23 В± 1 В°C to 44 В± 1 В°) under different PAR intensities for 4 h. The status of the photosynthetic apparatus of the plants was assessed by external 2 gas exchange and fluorescence measurements. The increased irradiance of the plants during the high temperature period demonstrated its protective action for both the photosynthetic apparatus of the leaves and subsequent plant growth and development. The productivity of the plants subjected to temperature changes at 250 W m-2 of PAR did not differ from that of controls, whereas the productivity of the plants subjected to the same heat stress but in darkness was halved. В© 2012 COSPAR. Published by Elsevier Ltd.

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Держатели документа:
SB RAS Institute of Biophysics, 660036 Akademgorodok, Krasnoyarsk, Russian Federation
Institut Pascal, GEPB, UBP, Clermont Universite, F-63000 Clermont-Ferrand, France
UB RAS, Institute of Biology of Komi Science Center, Syktyvkar, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.; Shikhov, V.N.; Gros, J.-B.; Golovko, T.K.; Dal'Ke, I.V.; Zakhozhii, I.G.

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3.


   
    Production characteristics of the "higher plants-soil-like substrate" system as an element of the bioregenerative life support system / V. V. Velichko [et al.] // Advances in Space Research. - 2013. - Vol. 51, Is. 1. - P115-123, DOI 10.1016/j.asr.2012.08.003 . - ISSN 0273-1177
Кл.слова (ненормированные):
Biological-technical life support system -- Soil-like substrate -- Utilization of plant wastes -- Age groups -- Bioregenerative life support systems -- Cultivated crops -- Cyperus esculentus -- Growth chamber -- Higher plants -- Mineral element -- Nitrogen content -- Nutrient solution -- Plant wastes -- Raphanus sativus -- Root zone -- Soil-like substrate -- Study materials -- Biomass -- Carbon dioxide -- Harvesting -- Minerals -- Plants (botany) -- Soils -- Substrates -- Waste utilization -- Ecology
Аннотация: The study addresses the possibility of long-duration operation of a higher plant conveyor, using a soil-like substrate (SLS) as the root zone. Chufa (Cyperus esculentus L.), radish (Raphanus sativus L.), and lettuce (Lactuca sativa L.) were used as study material. A chufa community consisting of 4 age groups and radish and lettuce communities consisting of 2 age groups were irrigated with a nutrient solution, which contained mineral elements extracted from the SLS. After each harvest, inedible biomass of the harvested plants and inedible biomasses of wheat and saltwort were added to the SLS. The amounts of the inedible biomasses of wheat and saltwort to be added to the SLS were determined based on the nitrogen content of the edible mass of harvested plants. CO2 concentration in the growth chamber was maintained within the range of 1100-1700 ppm. The results of the study show that higher plants can be grown quite successfully using the proposed process of plant waste utilization in the SLS. The addition of chufa inedible biomass to the SLS resulted in species-specific inhibition of growth of both cultivated crops and microorganisms in the "higher plants - SLS" system. There were certain differences between the amounts of some mineral elements removed from the SLS with the harvested edible biomass and those added to it with the inedible biomasses of wheat and saltwort. В© 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Science, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Velichko, V.V.; Tikhomirov, A.A.; Ushakova, S.A.; Tikhomirova, N.A.; Shihov, V.N.; Tirranen, L.S.; Gribovskaya, I.A.

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4.


   
    Biodegradable poly-3-hydroxybutyrate as a fertiliser carrier / T. G. Volova, S. V. Prudnikova, A. N. Boyandin // J. Sci. Food Agric. - 2016. - P4183-4193, DOI 10.1002/jsfa.7621 . - ISSN 0022-5142
Кл.слова (ненормированные):
biodegradable polymers -- controlled delivery systems -- fertilisers -- polyhydroxyakanoates
Аннотация: BACKGROUND: Increasing use of mineral fertilisers can lead to accumulation of fertilisers in soil, water and foodstuffs. One of the approaches to preventing these problems is to develop controlled release forms of fertilisers. RESULTS: Experimental formulations of the nitrogen fertiliser urea loaded in a degradable matrix of the natural polymer poly-3-hydroxybutyrate (P3HB) in the form of films, pellets and coated granules were constructed and investigated. Nitrogen release into soil occurred as the polymer was degraded, and it was dependent on the geometry of the carrier and the amount of nitrogen loaded in it, showing that nitrogen release can last for 30 days or longer and that release rates can be controlled by varying the fabrication technique employed. P3HB/urea formulations have a favourable effect on the soil microbial community. The use of embedded urea has a beneficial influence on the growth of creeping bentgrass (Agrostis stolonifera) and lettuce (Latuca sativa) and reduces removal of nitrogen with drain water. CONCLUSION: The slow-release nitrogen formulations developed in this study can be buried in soil together with seeds preventing nitrogen deficiency. The use of such slow-release formulations can decrease the amounts of chemicals in the environment and prevent their adverse effects on the biosphere. © 2016 Society of Chemical Industry. © 2016 Society of Chemical Industry

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Держатели документа:
Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Volova, T. G.; Prudnikova, S. V.; Boyandin, A. N.

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5.


   
    Development of human exometabolite deep mineralization method for closed ecosystems / A. A. Tikhomirov [et al.] // Dokl. Biochem. Biophys. - 2016. - Vol. 470, Is. 1. - P316-318, DOI 10.1134/S1607672916050021. - Cited References:9. - The study was supported by the Russian Science Foundation (project no. 14-14-00599). . - ISSN 1607-6729. - ISSN 1608-3091
РУБ Biochemistry & Molecular Biology + Biophysics

Аннотация: Methods of physicochemical further oxidation of hardly soluble sediment obtained from "wet combustion" of human exometabolites applied to space-purpose Bio Technological Life Support Systems (BTLLS) were studied. Most hardly dissoluble sediment containing Ca, P, Mg, and other essential plant nutrition elements were shown to dissolve in H2O2 and HNO3 aqueous media activated by alternating electric current. Dissolved additional mineral elements allowed (as demonstrated for lettuce) to increase the productivity of BTLLS phototrophic unit plants more than twice, which is comparable to their productivity on standard Knop solution with balanced chemical composition. Thus, dissolved mineral elements can be involved into BTLLS turnover process and increase its closure degree.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Tikhomirov, A. A.; Trifonov, S. V.; Morozov, E. A.; Kudenko, Yu. A.; Kalacheva, G. S.; Ushakova, S. A.; Russian Science Foundation [14-14-00599]

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6.


   
    Interaction effects of light intensity and nitrogen concentration on growth, photosynthetic characteristics and quality of lettuce (Lactuca sativa L. Var. youmaicai) / Y. M. Fu [et al.] // Sci. Hortic. - 2017. - Vol. 214. - P51-57, DOI 10.1016/j.scienta.2016.11.020. - Cited References:43. - This work was supported by the Ministry of Science and Technology of China (No. 2013AA103004) and National Natural Science Foundation of China (No. 31301706). . - ISSN 0304-4238. - ISSN 1879-1018
РУБ Horticulture
Рубрики:
WATER-USE EFFICIENCY
   LIFE-SUPPORT-SYSTEM

   GAS-EXCHANGE

   BLUE-LIGHT

Кл.слова (ненормированные):
Light intensity -- Nitrogen concentration -- Vitamin C -- Vegetable quality -- Facility agriculture
Аннотация: Light intensity and nitrogen concentration of nutrient solution are considered crucial for the contents of vitamin C and nitrate in cultivated leaf vegetables. We here investigated the effects of various combinations of light intensity (60,140 and 220 mu mol m(-2) s(-1)) and nitrogen concentration (7,15 and 23 mmol L-1) of the solution on the growth, photosynthetic characteristics, vitamin C and nitrate content of lettuce. Our results demonstrate that the lettuce had the largest dry biomass at the high illumination of 220 mu mol m(-2) s(-1) and low nitrogen of 7 mmol L-1. The higher light and low nitrogen also contributed to the accumulation of vitamin C and decrease of nitrate in lettuce leaves. The effect of nitrogen supply on chlorophyll concentrations was more efficient under low light than high illumination. Our results reveal that there was an obvious interaction between light intensity and nitrogen available for the photosynthesis, yield and quality of lettuce. This study provides valuable insights into the combinational regulation of light intensity and nitrogen supply for improving growth and nutritional quality of vegetables grown in greenhouse and plant factory. (C) 2016 Elsevier B.V. All rights reserved.

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Держатели документа:
Beihang Univ, Sch Biol Sci & Med Engn, Beijing 100191, Peoples R China.
Beihang Univ, Inst Environm Biol & Life Support Technol, Beijing 100191, Peoples R China.
Beihang Univ, Int Joint Res Ctr Aerosp Biotechnol & Med Engn, Beijing 100191, Peoples R China.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.

Доп.точки доступа:
Fu, Yuming; Li, HongYan; Yu, Juan; Liu, Hui; Cao, ZeYu; Manukovsky, N. S.; Ministry of Science and Technology of China [2013AA103004]; National Natural Science Foundation of China [31301706]

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7.


   
    Feasibility of incorporating all products of human waste processing into material cycling in the BTLSS / Y. A. Morozov [et al.] // Life Sci. Space Res. - 2018. - Vol. 18. - P29-34, DOI 10.1016/j.lssr.2018.05.002 . - ISSN 2214-5524
Кл.слова (ненормированные):
BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Sediment
Аннотация: The present study addresses the ways to increase the closure of biotechnical life support systems (BTLSS) for space applications. A promising method of organic waste processing based on “wet combustion” in hydrogen peroxide developed at the IBP SB RAS to produce fertilizers for higher plants is discussed. The method is relatively compact, energy efficient, productive, and eco-friendly. However, about 4–6 g/L of recalcitrant sediment containing such essential nutrients as Ca, Mg, P, Fe, Cu, Mn, and Zn precipitates after the initial process. These elements are unavailable to plants grown hydroponically and, thus, drop out of the cycling as dead-end products. Possible methods of dissolving that sediment have been studied. Results of experiments show that the most promising method is additional oxidation of the sediment in HNO3 + H2O2. By using the new technological process, which only involves substances synthesized inside the BTLSS material flows, more than 90% of each nutrient can be converted into the form available to plants in irrigation solutions, thus returning them into the material cycling. The results obtained in this study show the efficacy of supplementing the irrigation solutions with the mineral nutrients after sediment dissolution. Lettuce plants grown as the test object on the newly prepared irrigation solutions produced the yield that was more than twice higher than the yield produced on the nutrient solutions prepared without the sediment conversion into a soluble form. Composition of the gases emitted during this process has been analyzed. Dynamics of oxidation of the small fractions of a wax-like sediment remaining after the initial sediment dissolution in HNO3 + H2O2 in the BTLSS soil-like substrate has been studied. The entire technological scheme aimed at the full inclusion of all human wastes into the BTLSS cycling has been suggested and discussed. A process scheme of including products of human waste processing in the biotic cycle of the BTLSS is discussed in the conclusion. © 2018 The Committee on Space Research (COSPAR)

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center” SB RAS, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation
Reshetnev Siberian State University of Science and Technology, 31 “Krasnoyarskiy Rabochiy” Ave., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Morozov, Y. A.; Trifonov, S. V.; Ushakova, S. A.; Anishchenko, O. V.; Tikhomirov, A. A.

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8.


   
    Feasibility of incorporating all products of human waste processing into material cycling in the btlss / Ye. A. Morozov [et al.] // Proceedings of the International Astronautical Congress, IAC. - 2017. - Vol. 4: 68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017 (25 September 2017 through 29 September 2017, ) Conference code: 136635. - P2143-2149
Кл.слова (ненормированные):
BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Sediment -- Dissolution -- Energy efficiency -- Irrigation -- Life support systems (spacecraft) -- Plant shutdowns -- Sediments -- Space applications -- Waste incineration -- BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Nutrients
Аннотация: The present study addresses the ways to increase the closure of biotechnical life support systems (BTLSS) for space applications. A promising method of organic waste processing based on wet combustion in hydrogen peroxide developed at the IBP SB RAS to produce fertilizers for higher plants is discussed. The method is relatively compact, energy efficient, productive, and eco-friendly. However, about 4-6 g/L of recalcitrant sediment containing such essential nutrients as Ca, Mg, P, Fe, Cu, Mn, and Zn precipitates after the initial process. These elements are unavailable to plants grown hydroponically, thus dropping out of the cycling as deadlock products. Possible methods of dissolving that sediment have been studied. Results of experiments show that the most promising method is additional oxidation of the sediment in HNO3 + H2O2. By using the new technological process, which only involves substances synthesized inside the BTLSS material flows, more than 90% of each nutrient can be converted into the available form in irrigation solutions, thus returning them into the material cycling. The efficiency of irrigation solutions beneficiated with the mineral nutrients after the sediment dissolution has been shown. Lettuce plants grown as the test object on the newly prepared irrigation solutions produced the yield that was higher more than twice compared to the nutrient solutions prepared without the sediment conversion into a soluble state. Composition of the gases emitted during this process has been analysed. Dynamics of oxidation of small fractions of a wax-like sediment remaining after its dissolution in the BTLSS soil-like substrate has been studied. In conclusion, the entire technological chain aimed at inclusion of deadlock products of human waste wet combustion into the BTLSS cycling has been suggested and discussed. © 2017 by the International Astronautical Federation (IAF). All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center, Krasnoyarsk Science Center SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, 31 "Krasnoyarskiy Rabochiy" Ave., Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Morozov, Ye. A.; Trifonov, S. V.; Ushakova, S. A.; Anishchenko, O. V.; Tikhomirov, A. A.

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9.


   
    CONCEPTUAL APPROACH TO SELECTING RADIATION SPECTRUM OF LAMPS FOR PLANT CULTIVATION IN ARTIFICIAL CONDITIONS / A. A. Tikhomirov, S. A. Ushakova, V. N. Shikhov, E. S. Shklavtsova // Light Eng. - 2019. - Vol. 27. - P24-30. - Cited References:17 . - ISSN 0236-2945
РУБ Engineering, Electrical & Electronic + Optics
Рубрики:
QUALITY
Кл.слова (ненормированные):
plant cultivation lamps -- light-emitting diodes -- plant light -- chromaticity -- greenhouses -- photobiological efficiency of radiation
Аннотация: Based on own and literature data, the review of existing approaches to justification of concepts of selecting contemporary light sources for plant cultivation in greenhouse conditions is presented. The work covers comparative experimental data on productivity of lettuce leaves formed under radiation of light-emitting diode emitters with a phytospectrum and white light. A high-pressure sodium lamp was taken as a control source. Lack of valid differences between this data is found out. The article discusses data of literature where effect of heat radiation on plant productivity was discovered by means of light sources of different generations (metal halide lamps, xenon lamps), which is an additional factor apart from visible radiation spectrum which is capable of influencing photobiological efficiency of lamps. On the basis of data of literature, the role of background natural solar light in greenhouses which can negatively affect spectral efficiency of artificial light sources used for supplementary lighting of plants is discussed. A set of methodological factors influencing spectral efficiency of radiation for plant productivity as well as aspects of selection of lamps for cultivation of plants in greenhouse conditions for different latitudes are reviewed and scientifically validated. A controversy in selection of PAR chromaticity of light sources for plant cultivation is demonstrated. The concept of selecting a light source for plant cultivation based on availability of specific response of plant groups to PAR chromaticity is proposed as the most objective for practical application.

WOS
Держатели документа:
Russian Acad ofSciences, Siberian Branch, Krasnoyarsk Sci Ctr, Biophys Inst, Krasnoyarsk, Russia.

Доп.точки доступа:
Tikhomirov, Alexander A.; Ushakova, Sofya A.; Shikhov, Valentin N.; Shklavtsova, Ekaterina S.

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10.


   
    Conceptual approach to selecting radiation spectrum of lamps for plant cultivation in artificial conditions / A. A. Tikhomirov, S. A. Ushakova, V. N. Shikhov, E. S. Shklavtsova // Light Eng. - 2019. - Vol. 27, Is. Special Issue. - P24-39 . - ISSN 0236-2945
Кл.слова (ненормированные):
Greenhouses -- Light-emitting diodes -- Photobiological efficiency of radiation -- Plant cultivation lamps -- Plant light chromaticity -- Efficiency -- Greenhouses -- Light emitting diodes -- Metal halide lamps -- Metal halides -- Productivity -- Radiation -- Artificial light source -- Conceptual approaches -- Greenhouse conditions -- High pressure sodium lamps -- Plant light chromaticity -- Plant productivity -- Spectral efficiencies -- Visible radiations -- Plants (botany)
Аннотация: Based on own and literature data, the review of existing approaches to justification of concepts of selecting contemporary light sources for plant cultivation in greenhouse conditions is presented. The work covers comparative experimental data on productivity of lettuce leaves formed under radiation of light-emitting diode emitters with a phytospectrum and white light. A high-pressure sodium lamp was taken as a control source. Lack of valid differences between this data is found out. The article discusses data of literature where effect of heat radiation on plant productivity was discovered by means of light sources of different generations (metal halide lamps, xenon lamps), which is an additional factor apart from visible radiation spectrum which is capable of influencing photobiological efficiency of lamps. On the basis of data of literature, the role of background natural solar light in greenhouses which can negatively affect spectral efficiency of artificial light sources used for supplementary lighting of plants is discussed. A set of methodological factors influencing spectral efficiency of radiation for plant productivity as well as aspects of selection of lamps for cultivation of plants in greenhouse conditions for different latitudes are reviewed and scientifically validated. A controversy in selection of PAR chromaticity of light sources for plant cultivation is demonstrated. The concept of selecting 2 a light source for plant cultivation based on availability of specific response of plant groups to PAR chromaticity is proposed as the most objective for practical application. © 2019, LLC Editorial of Journal "Light Technik". All rights reserved.

Scopus
Держатели документа:
Biophysics Institute of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tikhomirov, A. A.; Ushakova, S. A.; Shikhov, V. N.; Shklavtsova, E. S.

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11.


   
    INTRACANOPY LIGHTING IN PHYTOCENOSES AND PHOTOBIOLOGICAL EFFICIENCY OF RADIATION IN PHOTOCULTURE CONDITIONS / A. A. Tikhomirov // Light Eng. - 2021. - Vol. 29, Is. 2. - P4-15, DOI 10.33383/2020-076. - Cited References:42. - The work is performed as part of state assignments VI.56.1.4 and 0287-2019-0009 "Research of the Effect of Plant Texture on Photosynthesis Efficiency" with the Biophysics Institute of the Federal Research Centre "Krasnoyarsk Research Facility of the Siberian Branch of the Russian Academy of Sciences". . - ISSN 0236-2945
РУБ Engineering, Electrical & Electronic + Optics
Рубрики:
DIFFERENT SPECTRAL COMPOSITION
   EMITTING-DIODES

   GREEN LIGHT

   LETTUCE

Кл.слова (ненормированные):
plant light culture -- intracanopy lighting -- light sources -- canopy -- architectonics -- optical canopy properties -- canopy productivity
Аннотация: The review is devoted to the study of the internal radiation regime in the canopies cultivated under controlled environmental conditions. The expediency of using canopies as an object of research for evaluating the photobiological efficiency of radiation in light culture conditions is justified. The appropriateness of light measurements in multi-tiered canopies is shown, taking into account the role of leaves of different tiers in the formation of an economically useful crop. The main requirements for light devices for their use in measuring artificial radiation in light culture conditions are considered, and a brief analysis of the existing instrument base for performing these studies is given. A number of examples show the complexity and ambiguity of the internal structure of the light field that is forming within canopies in light culture conditions. Conceptual approaches to the choice of spectral and energy characteristics of artificial irradiation for plant light culture are proposed and justified. The necessity of taking into account the light conditions of leaves of different tiers when choosing the spectral and energy characteristics of light sources for the cultivation of multi-tiered canopies is justified. Techniques, methods, and light sources used for additional intracanopy lighting are analysed. The efficiency of using side illumination of plant canopies and conditions for its implementation are considered. The advantages of the volume distribution of canopies on the most common multi-tiered lighting installations are discussed. Based on the presented mate- rial, we consider ways to improve methodological approaches for evaluating the photobiological effectiveness of artificial radiation in light culture conditions for canopies of cultivated plants, taking into account the features of their architectonics and internal radiation regime.

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Держатели документа:
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk, Russia.
Krasnoyarsk Sci Ctr, Inst Biophys, SB RAS,Fed Res Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Tikhomirov, Alexander A.; Biophysics Institute of the Federal Research Centre "Krasnoyarsk Research Facility of the Siberian Branch of the Russian Academy of Sciences" [VI.56.1.4, 0287-2019-0009]

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