Potential of priming in improving germination, seedling growth and nutrient status of Calotropis procera under salinity

Aziz, Umbreen; Qadir, Ihsan; Yasin, Ghulam; Azhar, Muhammad Farooq; Akhtar, Asif

doi:10.30848/pjb2021-6(35)

Cited by 8 publications

(4 citation statements)

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“…Sugars play an important function in maintaining the overall structure and growth of plants, total sugar in general decreased in different varieties with drought conditions [76]. On the other hand, in several of higher plants commence the accumulation of proline, soluble sugar and numerous secondary metabolites to protect against drought stress [77,78,79,80].These results harmony with Rayhan Ahmed et al [81] decreased total amino acid in Chinese cabbage with drought. Gharibi et al [73] on Achillea pachycephala plant under water deficit, showed improved phenolic conten t while declining flavonoids.…”

Section: Mineral Content In Leavessupporting

confidence: 64%

Biostimulation effects of linseed and citrus oils on growth, antioxidant enzymes activity, metabolic changes and water relations of Khaya senegalensis seedlings under drought stress

Soliman¹,

Mazhar²,

Eid³

et al. 2022

Journal of Pharmaceutical Negative Results

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This study aim to use environmentally friendly material (Linseed and citrus oils) to reduce the harmful effect of water deficit on Khaya senegalensis plant due to its economic importance as a source of wood in addition to many uses of alternative medicine. Therefore, Khaya senegalensis plants were grown in green house with three irrigation intervals (5, 7 and 9 days) and oils foliar spray as linseed oil (Lin) at (0, 5, 7%) and citrus oils at (0, 1, 2%). The results indicated that the 9 days irrigation interval gave the lowest values of the most studied growth parameters, water relations (relative water content (RWC%), water retention capacity (WRC) and membrane stability index(MSI%), photosynthesis pigments, chlorophyll stability index (CSI%), minerals content, total free amino acid while increased values of electrolyte leakage (EL%), total sugar, total phenol, and antioxidant enzymes activities(Catalase (CAT), Peroxidase (POX), Superoxide dismutase (SOD)). Both oils treated especially linseed oil, at 7% increased values of all parameters and chemical composition compared with untreated plants plus different irrigation intervals, except EL% was decreased. The data provided evidence that linseed and citrus oils treatment reduces the adverse effect of water deficit on Khaya senegalensis plants and can play a role in providing stress tolerance.

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Section: Mineral Content In Leavessupporting

confidence: 64%

Biostimulation effects of linseed and citrus oils on growth, antioxidant enzymes activity, metabolic changes and water relations of Khaya senegalensis seedlings under drought stress

Soliman¹,

Mazhar²,

Eid³

et al. 2022

Journal of Pharmaceutical Negative Results

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“…Parera et al [33] , reported that Cenchrus species are highly affected by low temperatures at all stages of their life cycle. Nonetheless, they are considered highly palatable and nutritious forages for all types of grazing animals [34] and highly digestible when green [35] and remain palatable at maturity [36] . Because of these physiognomy traits, these species are valuable native forage plants and have desirable qualities for use on degraded rangelands of these desert regions.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Induced Drought Stress on Germination of Cenchrus ciliaris L. and Cenchrus setigerus Vahl.: Implications for Rangeland Restoration in the Arid Desert Environment of Kuwait

Sulhadi¹

2023

Res. in Ecol.

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Drought impacts in arid desert ecosystems can result in decreased ecosystem productivity and biodiversity. Implementation of restoration projects in arid desert environments is largely dependent on water availability and soil moisture condition. This study investigated the influence of induced drought stress by using polyethylene glycol (PEG-6000) solution on germination viz. Cenchrus ciliaris and Cenchrus setigerus as the important rangeland species. The water stress potential treatments were 0 (control), –0.5 MPa, –1.0 MPa, –1.5 MPa, and –2.0 MPa. The extent of seed germination was severely affected by decreased water stress potential. As drought increased, the percentage of germination decreased in both Cenchrus’ species. The water deficit at –0.5 MPa showed a significant (P < 0.001) reduction in the final germination percentage in the case of C. setigerus and C. ciliaris by 65% and 42.5%, respectively. At –1.0 MPa to –1.5 MPa, changes in intermediate germination were observed in C. ciliaris (from 35% to 17.5%, respectively) and C. setigerus (from 22.5% to 11.25% respectively). Higher levels of water stress (–2.0 MPa) prevented the survival of both species. Understanding the germination strategies of native desert plant species associated with drought stress and identifying favorable conditions during the germination process can be useful for restoration practices and rangeland management actions to improve desert ecosystems and maintain biodiversity.

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“…However, the photo reduction of oxygen and production of ROS, together with the superoxide anion, hydrogen peroxide (H 2 O 2 ), and the hydroxyl radicals ( Afzal et al, 2020 ; Hashem et al, 2020 ; Heile et al, 2021 ; Imran et al, 2019 ; Kamran et al, 2020 ; Rehman et al, 2019 ; Saleem et al, 2020d ). Furthermore, some of the higher plants initiate the accumulation of osmolytes, such as glycine betaine, soluble sugars, proline, and many more secondary metabolites, to protect against drought stress ( Ahlem, Lobna & Mohamed, 2021 ; Aziz et al, 2021 ; Hussain et al, 2016 ; Kaya et al, 2020 ; Naz & Perveen, 2021 ). From preventing membrane degeneration, enzymes and macromolecule’s lysis activation of the plant’s stress defensive mechanism is highly important for the plant’s survival.…”

Section: Introductionmentioning

confidence: 99%

Alleviation of drought stress by root-applied thiourea is related to elevated photosynthetic pigments, osmoprotectants, antioxidant enzymes, and tubers yield and suppressed oxidative stress in potatoes cultivars

Saleem

Wang

Parveen

et al. 2022

PeerJ

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The growth and productivity of plants are enhanced by the use of thiourea (TU) under stressful conditions. When TU is applied as a rooting medium, it improves plant growth characteristics and other physiological parameters in stressed environment. A pot experiment was conducted in the botanical garden of the Government College University, Faisalabad 38000, Pakistan to examine the TU-mediated fluctuations in some crucial physio-biochemical parameters and the oxidative defense of potatoes under a restricted water supply. For this purpose, two potato cultivars (potato-SH-5 and potato-FD-73) were sown in pots containing 10 kg of soil. Water was regularly applied to the pots until germination. After 2 weeks of germination, drought stress with 65% field capacity was imposed, while the control was subjected to 100% field capacity. TU, as a rooting medium, was applied at the vegetative stage (0 (no application), 0.5, 0.75 mM). A substantial reduction in the total number of leaves, leaf area, tuber biomass (fresh and dry weight), photosynthetic pigments, membrane permeability, and leaf relative water content (RWC) was recorded in plants under drought stress conditions as compared to control plants. The damaging eﬀects of water stress were more critical for cv. potato-FD-73 as compared to cv. potato-SH-5. In contrast, drought stress enhanced the malondialdehyde (MDA) and hydrogen peroxide (H2O2) content while also increased antioxidant enzyme activities (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)) and triggered the accumulation of soluble proteins, soluble sugars, proline, and phenolic and anthocyanin contents. However, TU applied as rooting medium at 0.5 and 0.75 mM was eﬀective in reducing the detrimental eﬀects of water stress in both cultivars. Furthermore, increasing levels of TU enhanced chlorophyll pigments, dissolved proteins, complete dissolved sugars, and enzymatic capabilities of POD, SOD, and CAT, while reducing the MDA and H2O2 in both cultivars under stress conditions. In conclusion, TU improved the yield and chlorophyll pigments of potato plants by mitigating the adverse effects of drought stress through reduced EL, MDA, and H2O2 contents and improved activities of enzymatic and non-enzymatic antioxidants and osmoprotectants.

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Potential of priming in improving germination, seedling growth and nutrient status of Calotropis procera under salinity

Cited by 8 publications

References 0 publications

Biostimulation effects of linseed and citrus oils on growth, antioxidant enzymes activity, metabolic changes and water relations of Khaya senegalensis seedlings under drought stress

Biostimulation effects of linseed and citrus oils on growth, antioxidant enzymes activity, metabolic changes and water relations of Khaya senegalensis seedlings under drought stress

The Influence of Induced Drought Stress on Germination of Cenchrus ciliaris L. and Cenchrus setigerus Vahl.: Implications for Rangeland Restoration in the Arid Desert Environment of Kuwait

Alleviation of drought stress by root-applied thiourea is related to elevated photosynthetic pigments, osmoprotectants, antioxidant enzymes, and tubers yield and suppressed oxidative stress in potatoes cultivars

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