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Wyświetlanie 1-2 z 2
Tytuł:
Alleviation of adverse effects of salt stress on lettuce (Lactuca sativa var. crispa) by application of vermicompost
Autorzy:
Kiran, S.
Powiązania:
https://bibliotekanauki.pl/articles/12306521.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
Lactuca sativa var.crispa
plant growth
adverse effect
salinity
salt stress
stress alleviation
vermicompost
organic matter
Opis:
In arid and semiarid regions, soil salinity causes the salt stress in plants and negatively affects the crop production. In this respect, organic farming practices are becoming the foreground as applications that are sensitive to the environment and support sustainability in agriculture. This study aimed to explain the role of vermicompost (VC) for reducing the effect of salt stress on lettuce (Lactuca sativa var. crispa) plant. The experiments were performed with different concentrations of VC (0, 2.5 and 5% VC on a weight per weight basis of soil-w/w) and salt stress treatments (4 and 8 dS m–1 NaCl levels). Under salt stress, shoot height, relative water content (RWC), stomatal conductance (gs), chlorophyll a (Chla) content decreased, while electrolyte leakage (EL), malondialdehyde (MDA) contents and superoxide dismutase (SOD) and catalase (CAT) activities significantly increased in parallel with the severity of the stress. In this study, VC under the salinity stress significantly increased the RWC, gs and Chla, Chlt and carotenoid contents in the leaf tissues; however, MDA and EL contents decreased and SOD and CAT activities increased compared to the controls. In all levels of NaCl, the 5% ratio of VC significantly reduced the negative effects of salinity.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 153-160
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alleviating the salt stress effects in Salvia splendens by humic acid application
Autorzy:
Karimian, Z.
Samiei, L.
Nabati, J.
Powiązania:
https://bibliotekanauki.pl/articles/12307086.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Iran
semi-arid climate
Salvia
Scarlet sage
Salvia splendens
ornamental plant
seasonal plant
bedding plant
organic matter
humic acid
soil salinity
salt stress
stress effect
stress alleviation
soil remediation
Opis:
Salinity stress is a serious problem in urban landscape of arid and semi arid regions. To overcome the adverse impact of salinity, the application of organic matter and plant nutrients in the growth media for improving the plant growth is essential. An experiment was conducted in order to determine the response of Salvia splendens to salinity levels and also the role of humic acid in the salt stress alleviation. In the current experiment, five salinity levels (0, 20, 40, 60, and 80 mM NaCl) and three humic acid (0, 100, 500 and 1000 mg/l) treatments were prepared. The effects of these treatments were investigated on some growth parameters, physiological characteristics and also biochemical compounds. The results indicated that the growth parameters decreased in saline-treated than control plants. Different salinity levels significantly affected relative water content, evaporation rate and also electrolyte leakage. Salinity caused the increase in proline, malondialdehyde, sugar content, DPPH, total phenol content and decrease in chlorophyll, compare to the control plants. Application of humic acid on Salvia splendens decreased the leaf area and plant height compared to the control plants. Thus, regarding the growth parameters, it is probable that the effect of humic acid on the biochemical compounds is similar to salinity effect. The findings suggest that sage is an ornamental plant sensitive to salinity and humic acid (in the studied levels) could not alleviate the negative effects of salt stress on this plant.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 73-82
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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