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Wyszukujesz frazę "Kafi, M." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Influence of nano-silica and humic acid on physiological characteristics of Bermuda grass (Cynodon dactylon L.) under salinity stress
Autorzy:
Sharifiasl, R.
Kafi, M.
Saidi, M.
Kalatejari, S.
Powiązania:
https://bibliotekanauki.pl/articles/12675903.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Iran
Bermuda grass
Cynodon dactylon
wild plant
water salinity
salinity condition
salinity stress
nanosilica
humic acid
physiological characteristics
chlorophyll
proline
Opis:
This research was conducted to evaluate the effects of water salinity and nano-silica (NS) and humic acid (HA) on Bermuda grass. The study was carried out under greenhouse and exterior space conditions in a completely randomized design with factorial arrangements. Treatments included 4 water salinity levels (0, 5, 7 and 9 dS/m) and 4 level of NS (0, 1, 2 and 3 mm/l) as well as 4 level of HA (0, 50, 100 and 150 mg/l). Results indicated a decrease in chlorophyll content, and increase in proline, malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD) and electrolyte leakage (EL) with increasing levels of salinity. The chlorophyll content in greenhouse and exterior space also increased with increasing levels of NS and HA, while proline in two environments, with increasing levels of NS and HA decreased. EL with increasing levels of NS fluctuated, but with increasing levels of HA, it decreased in two environments. With increasing levels of NS, CAT in both environments was eventually decreased after the oscillation, but there was no particular trend in HA levels. With increasing levels of NS and HA, MDA in the greenhouse decreased and in the exterior space – it increased. Finally, by increasing levels of NS and HA, SOD did not show any change in the greenhouse condition, but in the exterior space, the SOD was decreased.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 203-212
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cardinal temperatures for germination of Salvia leriifolia Benth.
Wskaźniki temperatur kiełkowania Salvia leriifolia Benth.
Autorzy:
Dashti, M.
Kafi, M.
Tavakkoli, H.
Mirza, M.
Powiązania:
https://bibliotekanauki.pl/articles/72316.pdf
Data publikacji:
2015
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
medicinal plant
temperature
germination
Salvia leriifolia
regression model
Opis:
The focus of this study is based on the egzamination of the germination traits and the development of thermal models of the medicinal plant Salvia leriifolia Benth. A laboratory experiment was carried out at constant temperatures ranging from 0 to 35°C, at 5°C intervals in a completely randomized design with eight replications. To describe the germination rate response to temperature, three regression models, namely Intersected-Lines (ISL), Quadratic Polynomial (QPN) and Five-Parameters Beta (FPB) were used. The highest Germination Percentage (GP) (92.8%) occurred in 15°C, but GP in the range of 10–25°C was not significant (p≤0.05). The germination process stopped at 0°C and at above 30°C. The results indicated that the highest Germination Rate (GR), the lowest Mean Germination Time (MGT) and also times to 50% germination (D50) were obtained at 20°C. Seeds did not reach to their 50% germination level in temperatures higher than 25°C. The FPB model had the best realistic estimation for cardinal temperatures. Based on models estimation, Base (Tb), Optimum (To) and Ceiling (Tc) temperatures were in the ranges of (1–1.9°C), (18.1–20.8°C) and (34.5–38.7°C), respectively.
Celem pracy było badanie cech kiełkowania i określenie wskaźników temperatur kiełkowania rośliny leczniczej Salvia leriifolia Benth. Badanie laboratoryjne przeprowadzono przy stałych temperaturach z zakresu od 0 do 35°C, w odstępach co 5°C. Badano losowo wybrane diaspory w ośmiu powtórzeniach. W celu opisania wpływu temperatury na zdolność kiełkowania, zastosowano trzy modele regresji, mianowicie: segmentową regresję liniową (ISL), wielomianu kwadratowego (QPN) i regresję pięcioparametrową (FPB). Najwięcej nasion (92.8%) wykiełkowało w 15°C, przy czym różnice w wartości wskaźników zdolności kiełkowania (GP) w zakresie 10–25°C nie były istotne statystycznie (p≥0.05) Proces kiełkowania ustawał w temperaturze poniżej 0°C i powyżej 30°C. Wykazano, że najwyższy wskaźnik szybkości kiełkowania (GR), najkrótszy średni czas kiełkowania (MGT), a także najkrótszy czas kiełkowania 50% diaspor (D50) występują w temperaturze 20°C. W temperaturach powyżej 25oC nie uzyskano poziomu 50% kiełkujących nasion. Model FPB najlepiej przybliżał rzeczywiste wartości temperatur. Na podstawie zastosowanych modeli regresji stwierdzono, że temperatury minimalna (Tb), optymalna (To) i maksymalna (Tc) wynosiły odpowiednio: 1–1,9°C, 18,1–20,8°C i 34,5–38,7°C.
Źródło:
Herba Polonica; 2015, 61, 1
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth characteristics of ornamental Judas tree (Cercis siliquastrum L.) seedlings under different concentrations of lead and cadmium in irrigation water
Autorzy:
Hatamian, M.
Nejad, R.
Kafi, M.
Souri, M.K.
Shahbazi, K.
Powiązania:
https://bibliotekanauki.pl/articles/12298632.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
Judas tree
Cercis siliquastrum
ornamental plant
growth characteristics
tree seedling
irrigation water
waste water application
lead concentration
cadmium concentration
heavy metal
toxicity
Opis:
Landscape plantations are significantly water demanding in many parts of the world, particularly in dry regions. Adequate water supply is the main limiting factor behind landscape development, maintenance and beauty in such environments. On the other hand, monitoring the growth response of ornamental and landscape plants to irrigation water containing heavy metals can be useful in management and application of municipal wastewaters to these plantations instead of application in edible vegetable crops production, which is common in many urban areas. In the present study, one year old seedlings of Judas tree (Cercis siliquastrum) were irrigated for two years with water containing 0, 15 or 30 mg L–1 of lead (Pb) in absence or presence of cadmium (0 or 5 mg L–1) in a factorial design, and under greenhouse conditions. Heavy metal treatments had no significant effect on leaf SPAD value; however, plants treated with Pb15Cd0 combination had significantly higher SPAD value than Pb30Cd5 combination that showed the lowest leaf SPAD value. Increasing the lead and cadmium levels of irrigation water increased the number of chlorotic and necrotic leaves of plant than control, whereas it reduced the average leaf area and new shoot growth. The control plants or plants treated with lower level of heavy metals showed the highest leaf area and new shoot growth. Leaf photosynthesis rate was significantly reduced in all heavy metal treated plants than control plants, as the lowest amount was in Pb30Cd5 combination treatment. All heavy metal treatments showed higher leaf soluble carbohydrates and proline content than in control plants. Leaf soluble carbohydrates were highest in Pb30Cd0 and Pb30Cd5 treatments, and leaf proline was highest in Pb30Cd5 and Pb15Cd5 treatments. The results indicate that Judas tree is a relatively tolerant species to high concentrations of Pb and Cd in root medium added through the irrigation water, and long term dual application of these heavy metals can have additive harmful effects on plant growth.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 87-96
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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