Response of salt stressed okra (Abelmoschus esculentus Moench) plants to foliar-applied glycine betaine and glycine betaine containing sugarbeet extract

Habib, Noman; Ashraf, Muhammad; Ali, Shafaqat; Perveen, Rashida

doi:10.1016/j.sajb.2012.08.005

Cited by 59 publications

(48 citation statements)

References 30 publications

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“…The increase in root length under saline conditions in this species is a feature which is also triggered in some other ornamental plants [42]. Different results were reported by Habib et al [16], where okra plants showed a significant decrease in root length due to root zone salinity, although the foliar spraying of GB led to an increase in root length in this ornamental plant. The increase in root length in plants treated with GB in our experiment may contribute to a better capacity of nutrient uptake and consequently a greater height and number of leaves, as previously mentioned.…”

Section: Discussionsupporting

confidence: 49%

“…Foliar application of exogenous GB via seed or root soaking is considered to be a practical technique to improve plant resilience under stressed conditions and thus prolong, or improve, the yield of essential trading crops grown under both field and controlled environmental conditions [9]. For instance, the enhancement of salt tolerance through the external application of GB in different crops such as rice [10], melon [11], maize [12] wheat [13,14], eggplant [15], okra [16], as well as in ornamental species such as Viburnum lucidum L. and Callistemon citrinus (Curtis) Skeels [17], is well-known.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

et al. 2020

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We evaluated two osmotic adjustment substances (glycine betaine (GB) and glycine (G) and a combination of both glycine + glycine betaine (G + GB) using two modes of application; irrigation and foliar sprays with Dracaena sanderiana plants. The plants were grown in containers and subjected to two levels of NaCl concentrations (2.0 and 7.5 dS m−1) over 8 weeks. Growth, pigment concentrations, and physiological parameters were assessed at the end of the trial. The foliar application of GB resulted in most optimal plant growth and biomass production in the presence of NaCl. The chlorophyll and carotenoid concentrations showed different trends depending on the osmotic adjustment substance applied and the mode of application. Stomatal density and dimensions varied considerably with respect to the osmotic adjustment substance supplied. The concentration of soluble sugars in leaves did not show a clear trend under the different treatments assessed. The exogenous application of G resulted in the highest concentration of free proline and proteins in leaves. The antioxidant capacity in leaves increased with both osmotic adjustment substances, and both means of application, under low and high saline conditions. We concluded that the foliar application of GB can be recommended in order to achieve cost-effective growth of D. sanderiana under saline conditions.

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Section: Discussionsupporting

confidence: 49%

Section: Introductionmentioning

confidence: 99%

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

et al. 2020

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“…(Parida et al 2004;Sudhir & Murthy 2004;Yousif et al 2010;Wani et al 2013). Salt stress also reduced plant height, fresh weight (FW) and dry weight (DW) (Rui et al 2009;Memon et al 2010;Habib et al 2012). Carbonic anhydrase (CA) is an enzyme whose activity transports carbon dioxide and protons across biological membranes and retains inorganic carbon within the cell (Tavallali et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic response of two okra cultivars under salt stress and re-watering

Abdolzadeh

Xing

et al. 2017

Journal of Plant Interactions

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Two cultivars of okra (Chinese green and Chinese red) were subjected to salt stress (0%, 6%, 12% and 18%) and equal proportions of NaCl and CaCl 2 in Hoagland's nutrient solution and re-watering. Salt stress significantly reduced growth parameters and photosynthetic attributes of both cultivars. Treatment subjected to 18% salt stress caused 90% redundancy in growth parameters of both cultivars compared to control. Re-watering gave a positive response for plant growth of both cultivars in different levels. Chinese green showed better recovery at 6-0% re-watering level and Chinese red showed 12-6% and 6-0%, due to its salt tolerance nature. Considering re-watering water use efficiency and net photosynthetic rate the optimum values of salt tolerance for Chinese green and Chinese red were 8.3% and 12.02%, respectively. The best re-watering degree found as salt stress level ranged from 12.02% to 6% for Chinese red and 8.3% to 2.3% for Chinese green. This study provided a new method for the determination of irrigation time and quantification in crops.ARTICLE HISTORY

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“…It has been reported that among different organic compounds that take part in plant osmotic adjustment, proline is not only an osmoregulator but also an important ROS scavenger (Ashraf and Foolad, 2007). Increased accumulation of proline is a general phenomenon under salt stress, however more accumulation takes places in salt tolerant plants in comparison with the sensitive ones (Ashraf and Foolad, 2007;Habib et al, 2012). Therefore, the amount of proline accumulated could be taken as an important index of salinity tolerance (Ashraf and Foolad, 2007).…”

Section: Introductionmentioning

confidence: 99%

Nitric Oxide Regulated Improvement in Growth and Yield of Rice Plants Grown Under Salinity Stress: Antioxidant Defense System

Habib¹,

Akram²,

Javed³

et al. 2016

Appl Ecol Env Res

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Abstract. The current work assessed the effects of exogenously applied sodium nitroprusside (SNP) on rice growth and yield under salt stress. Salt stress induced a significant reduction in biomass and grain yield while increased the plant proline, ascorbic acid, H 2 O 2 and MDA contents in all studied cultivars. SOD, POD and CAT activities also significantly increased in salt stressed plants; however, the total phenolics content decreased. Application of SNP as seed priming reduced the adverse effects of salinity on plant biomass production and grain yield, while the accumulation of MDA and H 2 O 2 decreased. Of different SNP levels, 0.1 mM regime was more effective in reducing the negative effects of salinity. Among fine rice cultivars, Shaheen basmati performed better, while among coarse rice cultivars the performance of IRRI-6 was better to exogenously applied 0.1 mM SNP. We concluded that exogenous application of SNP up-regulated the antioxidative defense mechanism in salt stressed rice plants which resulted in better yield.

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Response of salt stressed okra (Abelmoschus esculentus Moench) plants to foliar-applied glycine betaine and glycine betaine containing sugarbeet extract

Cited by 59 publications

References 30 publications

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

Photosynthetic response of two okra cultivars under salt stress and re-watering

Nitric Oxide Regulated Improvement in Growth and Yield of Rice Plants Grown Under Salinity Stress: Antioxidant Defense System

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