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Tytuł:
The effects of Anitranspirant di-1-p-menthene on Some Physiological Traits of Strawberry
Autorzy:
Mikiciuk, G.
Mikiciuk, M.
Ptak, P.
Powiązania:
https://bibliotekanauki.pl/articles/952412.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
strawberry
pinolene
Vapor Gard
gas exchange
assimilation pigments
Opis:
Strawberry is a species sensitive to water shortages, especially during fruit growth and ripening. One method of limiting water loss in plant production involves the use of antitranspirants, which reduce plant transpiration. One method of limiting water loss in plant production involves the use of antitranspirants, which reduce plant transpiration. One of substances used for this purpose is, amongst others, natural terpene polymer di-1-p-menthene (pinolene). Research on the influence of a pinolene-containing antitranspirant (with the commercial name of Vapor Gard) on gas exchange parameters (intensity of net CO2 assimilation, intensity of transpiration, stomatal conductance for water, substomatal CO2 concentration), the water balance and the content of assimilation pigments (chlorophyll “a”, “b”, total chlorophyll, carotenoids) in the leaves of the cv. ‘Salsa’ strawberry was conducted in the years 2009–2010. The antitranspirant was used once at a concentration of 0.75% before flowering. The measurements were performed four times: before flowering (1st measurement date), when the plants were in full flowering (2nd measurement date), in the middle of the harvest season (3rd measurement date) and after the end of the harvest season (4th measurement date). Foliar application of the Vapor Gard antitranspirant decreases the intensity of strawberry transpiration without changing the CO2 assimilation activity. Plants sprayed with the tested preparation were characterised by a higher relative water content (RWC) in leaves and a higher value of the photosynthetic index of water use efficiency (WUE). The antitranspirant did not influence the content of assimilation pigments in straw-berry leaves. The values of the determined physiological features depended on the measurement date (developmental stage) of the tested strawberry cultivar.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 161-167
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of water stress on the gas exchange parameters, productivity and seed health of buckwheat (Fagopyrum esculentum Moench)
Wpływ stresu wodnego na wskaźniki wymiany gazowej, produktywność i zawartość grzybni (Fagopyrum esculentum)
Autorzy:
Pszczolkowska, A.
Fordonski, G.
Kulik, T.
Olszewski, J.
Plodzien, K.
Lojko, M.
Powiązania:
https://bibliotekanauki.pl/articles/28298.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
water stress
gas exchange
gas exchange parameter
productivity
seed health
buckwheat
Fagopyrum esculentum
polymerase chain reaction
water deficit
protein content
Opis:
The present pot experiment studied the effect of different soil moisture contents (60 – 70% CWC (capillary water capacity) – control; 30 – 35% CWC – water stress) on buckwheat productivity, the gas exchange parameters and health of buckwheat nuts. It was found that water deficit affected adversely certain biometric features investigated (plant height, number of nuts per cluster) and caused a decrease in seed weight per plant. It was also shown that water stress reduced the values of the investigated gas exchange parameters (photosynthesis rate, transpiration rate, intercellular-space CO2 concentration, and stomatal conductance) relative to the control treatment. Different soil moisture contents did not have a clear effect on fungal colonization of seeds. The multiplex PCR assays did not enable the detection of the genes responsible for mycotoxin synthesis. Under water deficit conditions, an increase was found in the content of albumin and globulin fractions as well as of glutelin fractions.
Źródło:
Acta Agrobotanica; 2010, 63, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Salinity and Nitrogen Deficiency on the Changes in Selected Physiological Parameters of Common Bean (Phaseoleus Vulgaris L.) Grown In Hydroponic Cultures
Autorzy:
Wróbel, J.
Auriga, A.
Mielczarek, M.
Powiązania:
https://bibliotekanauki.pl/articles/124417.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
salinity
bean
hydroponics
nitrogen deficiency
assimilation pigments
gas exchange
Opis:
This study aimed at evaluating the physiological activity of common bean grown under the conditions of stress being induced by salinity and nitrogen deficiency and its lack in substrate. Three series of two-factorial hydroponic experiment with the common bean (Phaseolus vulgaris L.) cultivar Basta were carried out from May to July in 2013–2014. The first experimental factor was three levels of nitrogen content in a Hoagland hydroponic medium (level 1 – a complete medium, level 2 – without 50% N, level 3 – without 100% N). The second experimental factor was three levels of medium salinity (level 1 – no NaCl addition, level 2 – 30 mM NaCl addition, level 3 – 50 mM NaCl addition). Nitrogen deficiency in a Hoagland hydroponic medium, together with increased salinity level, significantly affected the changes in the physiological parameters of the common bean cultivar Basta being tested, i.e. assimilation pigment concentration (chlorophyll-a, chlorophyll-b and chlorophyll-a+b and carotenoids), assimilation and transpiration intensities, and RWC (relative water content). The 50% nitrogen deficiency in medium induced a significant increase in the concentration of all assimilation pigments in common bean leaves and was by far the highest among the experimental variants being tested. A significant decrease in the content of assimilation pigments was observed in the hydroponic mediums without nitrogen and salined with 30 and 50 mM sodium chloride. The interaction of these two experimental factors being analysed, i.e. nitrogen deficiency and its lack in a Hoagland hydroponic medium and its salinity, significantly decreased the intensity of assimilation in bean leaves, while a significant increase in transpiration was observed in the variant without nitrogen and with 50 mM NaCl. The experimental variants being tested had a significant effect on the changes in leaf water balance of the common bean cultivar being tested. Salinity, in interaction with nitrogen deficiency in medium, decreased relative water content (RWC) in leaves, irrespective of their level.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 321-327
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ doświetlania lampami sodowymi i led na aktywność fotosyntetyczną oraz wzrost roślin pomidora
Influence of supplementary lighting with high pressure sodium and led lamps on growth and selected physiological parameters of tomato transplants
Autorzy:
Klamkowski, K.
Treder, W.
Treder, J.
Puternicki, A.
Lisak, E.
Powiązania:
https://bibliotekanauki.pl/articles/160189.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
wymiana gazowa
fotosynteza
chlorofil
fotomorfogeneza
gas exchange
photosynthesis
chlorophyll
photomorphogenesis
Opis:
Rośliny pomidora uprawiane w szklarni w okresie jesienno-zimowym (listopad - grudzień) doświetlano przy pomocy lamp sodowych lub LED (diody emitujące światło czerwone, niebieskie oraz w zakresie bliskiej podczerwieni). Kombinację kontrolną stanowiły rośliny rosnące w warunkach naturalnego światła. Prowadzono pomiary intensywności wymiany gazowej oraz natężenia zielonej barwy liści (względna zawartość chlorofilu). Po zakończeniu doświadczenia wykonano analizę budowy morfologicznej roślin mierząc masę organów roślinnych, wysokość roślin, średnicę pędu oraz powierzchnię liści. Doświetlanie roślin spowodowało zwiększenie natężenia wymiany gazowej i zawartości chlorofilu w liściach a także intensywniejszy wzrost. Ponadto wykazano zróżnicowanie pomiędzy roślinami z kombinacji doświetlanych. Rośliny doświetlane przy pomocy diod elektroluminescencyjnych były wyższe, miały większą masę, a w ich liściach stwierdzono więcej chlorofilu w porównaniu kombinacją, w której użyto lamp sodowych.
The objective of the study was to evaluate the physiological response and growth of tomato transplants grown under different light treatment. During cultivation period (November - December), the transplants received supplemental artificial lighting provided by standard high-pressure sodium lamps (HPS) or high-power solid state lighting modules with red, blue and far red LEDs. Quantum irradiance in both combinations was maintained at the same level. The third group of plants (control combination) was grown under the natural light (without supplemental lighting). The following measurements were taken: leaf gas exchange (net photosynthesis and transpiration rate), leaf greenness index (relative chlorophyll content) and the most important morphological parameters (fresh weight of plant organs, leaf surface area, plant height). The results showed that supplemental illumination using LED or HPS light sources affected growth and physiological responses of tomato plants. The higher rates of gas exchange and leaf greenness index as well as enhanced growth were found in the plants grown under conditions of artificial lighting (compared to control ones). Additionally, significant differences (as a result of light spectral quality) were found between the plants lighted with HPS lamps or LED modules. LED lighting resulted in the stem elongation, greater weight of plant organs and higher chlorophyll content in the leaves. The obtained results proved that HPS lamps can be replaced by LEDs in greenhouse lighting systems. However, much work still has to be done to optimize lighting spectrum of LED modules for the cultivation of the specific crop species.
Źródło:
Prace Instytutu Elektrotechniki; 2012, 256; 75-86
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An overview of plant responses to the drought stress at morphological, physiological and biochemical levels
Autorzy:
Wach, Damian
Skowron, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2143648.pdf
Data publikacji:
2022-09
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
drought stress
growth
yield
gas exchange
antioxidative system
osmolytes
photosynthetic pigments
Opis:
Agricultural production is continuously constrained by number of biotic and abiotic stresses. Among all, water defi- cit is one of the major abiotic stresses, which adversely affects crop growth and productivity. Drought impairs normal growth, reduces leaf expansion, stem extension and root proliferation, disrupts water relation and water use efficiency. It interferes with the synthesis of photosynthetic pigments, resulting in the decline of light harvesting, generation of reducing power, and reduction of gas exchange and carbon fixation, which in turn, leads to the decline in plant growth and productivity water relations and re- duces water-use efficiency in plants and it finally leads to biomass and final yield reduction of crop plants. However, plants develop some mechanisms of drought tolerance, avoidance or escape. This review presents some aspects of changes in plant at morpho- logical, physiological and biochemical levels induced by drought.
Źródło:
Polish Journal of Agronomy; 2022, 50; 25-34
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of valve-seat angles to operation values and emissions of medium-speed diesel engines
Autorzy:
Marquardt, Leander
Kate, Heiner Joachim
Reinke, Andreas
Kockskämper, Niklas
Powiązania:
https://bibliotekanauki.pl/articles/2204626.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
medium speed engines
gas exchange
valve-seat angle
flow coefficient
thermal load
Opis:
For the development of gas exchange for large diesel engines, a compromise has to be found between efficient valve-flow and the time between overhauls. On the one hand, large effective flow areas, especially during valve-overlap, are demanded. On the other hand, there are limitations of cylinder bore regarding the maximum diameter of inlet and outlet valves and the minimum distance (dead space) between valves and piston, as well as wear-related smaller seat angles. For large medium-speed diesel engines, a valve-seat angle of = ° for inlet and outlet valves is a standard application. For engine-operation with clean fuels, a valve-seat lubrication (gasoil) or smaller seat angles (natural gas) need to be applied. With this presentation, the basic influence of different valve-seat angles on the operation values and emissions will be considered for the example of the single-cylinder research engine FM16/24. Using a self-developed testbed, experimental investigations into effective flow areas as a function of valve-lift at inlet and outlet valves have to be executed. With this input, different cycle calculations including T/C have to be carried out to determine deviances in specific fuel-oil consumption, exhaust-gas temperatures, NOx emissions and air/fuel ratio. The results will be discussed critically.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 2; 173--179
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of wearing an FFP3 mask (3M$\text()^{TM}$ Aura$\text()^{TM}$) with an exhalation valve on gas exchange in medical staff
Autorzy:
Fantin, Raffaella
Powiązania:
https://bibliotekanauki.pl/articles/2093861.pdf
Data publikacji:
2021-12-13
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
personal protective equipment
health personnel
gas exchange
respiratory protective devices
COVID-19
masks
Opis:
ObjectivesThe physiological impact of wearing personal protective equipment (PPE), in particular filtering-face-piece 3 (FFP3) masks, has increasingly been gaining importance since the outbreak of coronavirus disease 2019 (COVID-19). So far, gas exchange has been examined using transcutaneously measured partial pressure of carbon dioxide (PaCO2), ergo-spirometry and impedance cardiography.Material and MethodsIn this structured investigation, arterial blood gas analysis in a 30-year-old female resident was carried out during a 13-hour day shift on the COVID-19 Intensive Care Unit of the University Hospital of Innsbruck, Austria. An FFP3 mask (3MTM AuraTM) with an exhalation valve was continuously worn, except for 1 break of 20 min. Arterial blood samples were obtained before putting on the PPE, and after 5 h, 9 h and 13 h of working in the contaminated area.ResultsDuring the multi-hour wearing time, an increase in PaCO2 (the baseline value: 29.3 mm Hg, the max. value: 38.9 mm Hg) and a continuous decrease in partial pressure of oxygen (PaO2, the baseline value: 102 mm Hg, the min. value: 80.8 mm Hg) was detectable.ConclusionsAll measured values were within the normal range, but a trend towards an insufficient gas exchange could be suspected.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2021, 34, 6; 817-819
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of foliar nutrition of spinach (Spinacia oleracea L.) with magnesium salts and urea on gas exchange, leaf yield and quality
Wpływ dolistnego nawożenia szpinaku solami magnezu i mocznikiem na wymianę gazową, plon i jakość liści
Autorzy:
Borowski, E.
Michalek, S.
Powiązania:
https://bibliotekanauki.pl/articles/27669.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
foliar nutrition
spinach
Spinacia oleracea
magnesium salt
urea
gas exchange
leaf yield
leaf quality
Opis:
In a pot experiment conducted in a phytotron, the effectiveness of foliar nutrition of spinach (Spinacia oleracea L.) with different magnesium salts with and without the addition of 0.5% CO(NH2)2 was studied. Magnesium was applied 3 times in the form of solutions of MgSO4 x 7H2O, Mg(NO3)2 x 6H2O, MgCl2 x 6H2O, C4H6O4Mg x 4H2O, compared to water as the control treatment. The obtained results showed that foliar feeding of spinach with inorganic magnesium salts was an efficient method for supplementing the Mg level in plants during the growing period. But the application of a metalo-organic complex in the form of magnesium acetate (C4H6O4Mg x 4H2O) at a concentration of 1.7%, in spite of a similar effect on leaf Mg content, induced phytotoxic symptoms in the form of chlorotic and necrotic spots on the leaves. The application of the solutions of inorganic magnesium salts had a significant effect, resulting in more intensive leaf gas exchange (stomatal conductance, transpiration and photosynthesis) and an increase in leaf yield. Magnesium sulphate affected the abovementioned processes in the most effective way, while magnesium acetate had a negative impact. Foliar feeding of spinach with the magnesium salts resulted in an increased leaf content of protein, chlorophyll, carotenoids, nitrates and proline, but a decrease in vitamin C content. The addition of urea to the applied magnesium salt solutions increased the plant gas exchange rates and the leaf content of protein, chlorophyll, carotenoids, nitrates and proline, but it decreased the content of vitamin C, potassium and magnesium.
Źródło:
Acta Agrobotanica; 2010, 63, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of computational model of charge composition changes in the cylinder during the gas exchange process
Koncepcja modelu obliczeniowego zmian składu ładunku w cylindrze w okresie wymiany ładunku
Autorzy:
Danilecki, K.
Powiązania:
https://bibliotekanauki.pl/articles/263649.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
cylinder
model obliczeniowy
silnik tłokowy
wymiana ładunku
computational model
gas exchange process
piston engine
Opis:
A proposal of calculations of the gas exchange process in the CI piston engine has been presented that takes into account changes of chemical composition of the charge resulting from backflows and mixing of air with exhaust gases.
W artykule przedstawiono propozycję obliczeń procesu wymiany ładunku w tłokowym silniku ZS uwzględniającą zmiany składu chemicznego ładunku wynikające z przepływów zwrotnych oraz wymieszania powietrza ze spalinami.
Źródło:
Archiwum Motoryzacji; 2007, 4; 309-320
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of supplementary lighting on growth and photosynthetic activity of tomato transplants
Autorzy:
Klamkowski, K.
Treder, W.
Wojcik, K.
Puternicki, A.
Lisak, E.
Powiązania:
https://bibliotekanauki.pl/articles/59923.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
greenhouse
supplementary lighting
plant growth
photosynthetic activity
tomato
Lycopersicon esculentum
gas exchange
transplant
photomorphogenesis
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas transfer velocities in Norwegian fjords and the adjacent North Atlantic waters
Autorzy:
Banko-Kubis, H.M.
Wurl, O.
Mustaffa, N.I.H.
Ribas-Ribas, M.
Powiązania:
https://bibliotekanauki.pl/articles/48482.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
gas transport
carbon dioxide flux
gas exchange
parametrization
wind speed
turbulence
Atlantic water
Norwegian fjord
North Atlantic
Źródło:
Oceanologia; 2019, 61, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth and Photosynthetic Activity of Cucumber as Influenced by Different Fertilization Regimes
Wzrost oraz aktywność fotosyntetyczna roślin ogórka w zależności od zastosowanego nawożenia
Autorzy:
Klamkowski, K.
Treder, W.
Tryngiel-Gać, A.
Powiązania:
https://bibliotekanauki.pl/articles/388915.pdf
Data publikacji:
2011
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
wymiana gazowa
wzrost roślin
zawartoość chlorofilu
nawożenie dolistne
gas exchange
plant vigor
chlorophyll content
foliar fertilization
Opis:
The investigation aimed at examining the changes in growth and photosynthetic activity of greenhouse-grown cucumber plants subjected to various fertilization regimes. The plants were subjected to the following treatments: standard fertilization with nutrient solution (control), foliar treatments with two fertilizers (complete or nitrogenous), without any fertilization (non-fertilized plants). The plants without fertilization were supplied with water only. Lack of fertilization resulted in the reduction of net photosynthesis and leaf chlorophyll content. The lowest rates of photosynthesis and leaf chlorophyll content were observed in the non-fertilized cucumber plants. Also, retardation in plant growth was evident in this group of plants as a result of nutrient deficiency. Foliar application of complete fertilizer (Agroleaf Power Total) had a pronounced effect on photosynthesis and growth of cucumber plants. On the other hand, the plants sprayed with nitrogenous fertilizer (Basfoliar 36 Extra) assimilated with low intensity, and their vigor did not differ significantly from that recorded for plants supplied with water only (non-fertilized).
W dooewiadczeniu szklarniowym oceniono wzrost i aktywnooeć fizjologiczną rooelin ogórka w reakcji na zastosowane nawożenie. Kombinacje dooewiadczalne obejmowały rooeliny nawożone dokorzeniowo (fertygacja pożywką płynną), rooeliny nienawożone w trakcie trwania uprawy oraz rooeliny nawożone dolistnie jednym z dwóch nawozów: wieloskładnikowym (zawierającym makro i mikroelementy) lub azotowym (zawierającym azot i mikroelementy). Rooeliny nienawożone zasilane były tylko wodą. Najmniejsze natężenie fotosyntezy i zawartość chlorofilu w lioeciach wykazano w przypadku roślin nienawożonych. U tej grupy rooelin stwierdzono także najsilniejsze zahamowanie wzrostu. Spośród zastosowanych nawozów dolistnych, wyższą skuteczność wykazano w przypadku nawozu wieloskładnikowego. U roślin opryskiwanych tym nawozem stwierdzono większą zawartość chlorofilu w liściach oraz wysokie wartosci fotosyntezy netto. Rośliny traktowane nawozem wieloskładnikowym charakteryzowały się także bardziej intensywnym wzrostem.
Źródło:
Ecological Chemistry and Engineering. A; 2011, 18, 1; 35-41
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas exchange parameters in leaves and ears of winter wheat Triticum aestivum L. and its productivity under fungicide control conditions
Wskaźniki wymiany gazowej liści i kłosów oraz produkcyjność pszenicy ozimej (Triticum aestivum L.) w warunkach ochrony fungicydowej
Autorzy:
Jarmolkowicz, J.K.
Olszewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/28414.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
gas exchange parameter
leaf
culm
wheat culm
winter wheat
Triticum aestivum
productivity
fungicidal control
control condition
Opis:
A research experiment was conducted in which rates of photosynthesis and transpiration were measured in leaves and ears of two winter wheat varieties grown under fungicide control conditions and without fungicide control. A LI-COR 6400 portable gas exchange system was used in the investigations. In most cases the fungicide Juwel was shown to have no effect on the gas exchange processes, whereas the other of the fungicidal agents applied – Swing – significantly decreased the gas exchange rates measured. Measurements of gas exchange parameters in ears showed that the intensity of gas exchange was low, in particular at the later stage of ear development. But the applied fungicide caused higher release of CO2 into the atmosphere than its uptake. Furthermore, the applied fungicides were found to significantly increase grain yield compared to the control treatment, both in the first and second year of the study. Among the tested varieties, ‘Nutka’ was characterized by higher productivity, in spite of lower 1000 kernel weight. However, this cultivar developed longer ears with a larger amount of grains.
Źródło:
Acta Agrobotanica; 2010, 63, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rhizogenesis and gas exchange in dogwood stem cuttings as affected by two biostimulators
Autorzy:
Pacholczak, A.
Pietkiewicz, S.
Powiązania:
https://bibliotekanauki.pl/articles/41082.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
rhizogenesis
gas exchange
dogwood
Cornus alba
stem cutting
biostimulator
leafy shrub
rooting
auxin
respiration
photosynthesis
transpiration
Opis:
The UE-imposed restrictions on the manufacture and use of plant protection chemicals necessitate screening for new substances that are more environmentally friendly. Biopreparations may constitute such a group; therefore, studies on their efficiency in the production of plant material are needed. This study evaluated the effects of two biostimulators on rhizogenesis and the gas exchange rate (respiration, photosynthesis, transpiration) of stem cuttings of dogwood (Cornus alba) as compared to conventional treatments with a rooting powder containing 2% auxin IBA and with aqueous IBA solution. Both biopreparations enhanced rhizogenesis; their efficiency varied depending on the cultivar, biostimulator applied, and the number of treatments. There was no relationship between rhizogenesis and physiological parameters tested. The experiments demonstrated that at least some biopreparations have potential in commercial production but their effectiveness may be different in different species and under different conditions.
Źródło:
Dendrobiology; 2014, 72
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review: Some physiological indices to be exploited as a crucial tool in plant breeding
Autorzy:
Kalaji, Mohamed Hazem
Pietkiewicz, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/2198931.pdf
Data publikacji:
2004-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
chlorophyll fluorescence
gas exchange
growth analysis
plant breeding
physiologica l indices
salt stress
selection criteria
yielding
Opis:
This article is mainly addressed to plant physiologists and breeders. Nowadays, the cooperation between these two groups seems to be more important than ever before. Plant physiology offers better understanding of mechanisms and factors responsible for plant yielding. Thus, it might help to find proper traits for plant selection. Plant breeding proposes highly differentiated material for testing.
Źródło:
Plant Breeding and Seed Science; 2004, 49; 19-39
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
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