Effect of silicon application on wheat (Triticum aestivum L.) growth under water deficiency stress

Ahmad, Faraz; Rahmatullah,; Aziz, Tariq; Maqsood, Muhammad; Tahir, Mukkram Ali; Kanwal, Shamsa

doi:10.9755/ejfa.v12i1.5170

Cited by 52 publications

(29 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, under PEG stress, dry matter reduction was observed, and it was less severe in seedlings applied with Si than in those without Si application. These results are consistent with other reports in wheat (Ahmad et al. 2007, Pei et al.…”

Section: Discussionsupporting

confidence: 94%

Silicon Alleviates PEG‐Induced Water‐Deficit Stress in Upland Rice Seedlings by Enhancing Osmotic Adjustment

Ming

Pei

Naeem

et al. 2011

J Agronomy Crop Science

178

View full text Add to dashboard Cite

This study investigates the effect of added silicon (Si, as sodium silicate) on water status–related parameters, osmolytes accumulation and gas exchange in the leaves of hydroponically grown upland rice seedlings under polyethylene glycol (PEG‐6000)‐induced water stress, the aims being to explore whether Si has been involved in osmotic adjustment (OA) in upland rice plants. Fifty‐five‐day‐old seedlings were subjected to 8.5 % (m/v) PEG‐6000 treatment without or with 2.5 mm Si for 7 days. The results showed that addition of Si to culture solution could partially improve total, free, and bound water contents in both leaves and roots, which were all decreased under water stress. Application of Si increased water potential (Ψw) and osmotic potential (Ψπ) in both roots and leaves while maintained higher turgor pressure (Ψp), in comparison with the plants without Si application. Added Si also stimulated the active accumulation of some osmolytes in both leaves and roots of stressed plants, which suggested enhanced OA ability. Analysis of gas exchange in leaves showed that net photosynthetic rate, transpiration, and water‐use efficiency (WUE) were decreased under water stress, whereas application of Si enhanced the photosynthesis and improved the WUE. This study suggests that PEG‐induced water stress in rice could be partially alleviated by addition of Si. This alleviative effect was partially attributable to enhanced OA ability by means of active accumulation of osmolytes.

show abstract

Section: Discussionsupporting

confidence: 94%

Silicon Alleviates PEG‐Induced Water‐Deficit Stress in Upland Rice Seedlings by Enhancing Osmotic Adjustment

Ming

Pei

Naeem

et al. 2011

J Agronomy Crop Science

178

View full text Add to dashboard Cite

show abstract

“…These results are in accord with [45] who noted that at increasing levels of silicon, the height of wheat plants also increased.…”

Section: Plant Height (Cm)supporting

confidence: 82%

Effect of gibberellic acid and potassium silicate on physiological growth of Okra (Abelmoschus esculentus L.) under salinity stress

Ayub¹

2018

PAB

View full text Add to dashboard Cite

The aim of this investigation was to improve salt tolerance abilities in okra (Abelmoschus esculentus L.) by foliar application of potassium silicate and seed priming with GA3. A pot experiment was conducted at Awan Nursery Farm, Haripur, to investigate whether seed priming with GA3 and foliar application of potassium silicate could ameliorate the toxic effects of salinity on okra growth. Two okra cultivars Sabz Pari and Mehak Pari were exposed to two levels of NaCl (control and 50mM) according to the saturation percentage of soil. Seeds of okra were primed with three levels of GA3 (50mg/L, 75mg/L and 100mg/L) before sowing. After 18 days of germination okra plants were treated with three levels of potassium silicate (2mmol, 3mmol and 4mmol) exogenously as foliar spray to protect the plants against salt stress. Data for different growth parameters such as root length, shoot length, plant height, root and shoot fresh weight, root and shoot dry weight were collected. Okra cultivar Sabz Pari showed maximum resistance towards salinity as compared to Mehak Pari. Applications of GA3 decreased the harmful effects of salinity and enhanced the overall growth of okra whereas silicon failed to impart any significant difference on okra.

show abstract

“…Silicon is reported to increase plant growth and stimulate productivity in various crop plants. Si application strengthened the plant biomass, height, and productivity under different stressed conditions (Ahmad et al, 2007). It also triggers growth by providing strength and extensibility to plant cells.…”

Section: Introductionmentioning

confidence: 99%

Foliar spray of phyto-extracts supplemented with silicon: an efficacious strategy to alleviate the salinity-induced deleterious effects in pea (Pisum sativum L.)

Shahid¹,

Balal²,

Pervez³

et al. 2015

Turk J Bot

View full text Add to dashboard Cite

IntroductionAbiotic stresses drastically affect crops by minimizing yield. Plants face many distinctive abiotic stresses at different stages of plant growth and development. Among these stresses, salinity is prejudicious, limiting plant growth and productivity. Salt stress causes various deleterious effects on morphological, physiological, biochemical, and nutritional attributes. The formation of reactive oxygen species (ROS) is the significant consequence of salt stress. The major ROS comprise hydroxyl ( . OH), superoxide (O 2 .-), and hydrogen peroxide (H 2 O 2 ). The high ratios of ROS are responsible for lipid peroxidation (LPO) of tissues and cause deterioration of proteins, green pigments, and DNA (Schutzendubel and Polle, 2002). However, nature has equipped all vegetations with a defensive antioxidant system to counter the oxidative damage caused by ROS (Apel and Hirt, 2004). Plant growth under saline conditions is highly associated with its antioxidant activities, i.e. superoxide peroxidase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), and glutathione reductase (GTR) activities. High antioxidant activities will inhibit LPO by eliminating the ROS.Silicon (Si) is an excellent growth promoting agent. Silicon is reported to increase plant growth and stimulate productivity in various crop plants. Si application strengthened the plant biomass, height, and productivity under different stressed conditions (Ahmad et al., 2007). It also triggers growth by providing strength and extensibility to plant cells. It strengthens the endoderm of the mature basal cells and improves the extensibility of apical cells of the roots; thus Si contributes to a strong, extensive, and deep root system. However, it is also a vital element that has an excellent tolerance enhancing potential against abiotic Abstract: A pot culture study was conducted to assess the ameliorative effect of silicon, Melia azadirachta leaf extract, and sugar beet root extract, each applied individually or in different combinations, on salinity-induced detrimental effects in pea (Pisum sativum L.). Salinity markedly inhibited the growth, various gas exchange attributes, total phenol contents, membrane stability index, and productivity. On the other hand, lipid peroxidation, electrolyte leakage, H 2 O 2 content, antioxidant activities, and leaf free proline and glycinebetaine contents were significantly enhanced by salinity. However, exogenously applied Si and phyto-extracts markedly alleviated the salinity-induced drastic effects on growth, gas exchange attributes, and productivity. Both phyto-extracts supplemented with silicon gave highly salinity mitigating effects by markedly improving growth, gas exchange attributes, enzymatic activities, osmolytes, and yield. The phyto-extracts and Si suppressed lipid peroxidation, electrolyte leakage, and H 2 O 2 content by strengthening the enzymatic and nonenzymatic (proline and glycinebetaine) antioxidant defense system. The phyto-extracts and Si application also che...

show abstract

Effect of silicon application on wheat (Triticum aestivum L.) growth under water deficiency stress

Cited by 52 publications

References 18 publications

Silicon Alleviates PEG‐Induced Water‐Deficit Stress in Upland Rice Seedlings by Enhancing Osmotic Adjustment

Silicon Alleviates PEG‐Induced Water‐Deficit Stress in Upland Rice Seedlings by Enhancing Osmotic Adjustment

Effect of gibberellic acid and potassium silicate on physiological growth of Okra (Abelmoschus esculentus L.) under salinity stress

Foliar spray of phyto-extracts supplemented with silicon: an efficacious strategy to alleviate the salinity-induced deleterious effects in pea (Pisum sativum L.)

Contact Info

Product

Resources

About