Effect of Silicon Supply Methods on Durum Wheat (Triticum durum Desf.) Response to Drought Stress

Othmani, Abdelhak; Ayed, Sourour; Bezzin, Oumaima; Farooq, Muhammad; Ayed-Slama, Olfa; Amara, Hajer Slim; Younes, M. Ben

doi:10.1007/s12633-020-00639-3

Cited by 37 publications

(16 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar conclusion is arrived at when investigating Si impact on individual landraces. Thus, these findings do not corroborate wheat studies that found that Si improves growth under osmotic [ 58 ] and drought stress [ 28 , 36 , 37 , 38 ]. Nevertheless, other studies on osmotic and drought-stressed wheat did not report a significant increase in shoot dry weight biomass [ 39 , 59 ].…”

Section: Discussioncontrasting

confidence: 82%

“…Most studies on wheat report that Si increases growth and yield under drought stress [ 28 , 36 , 37 , 38 ], although there are others reporting no significant effect either in wheat [ 39 ] or in other species [ 40 , 41 ]. The inconsistent nature of the observed Si effects may reflect variation in plant species and genotype, as has been found for understanding the Si effect on herbivory tolerance [ 20 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Silicon on Osmotic and Drought Stress Tolerance in Wheat Landraces

Thorne

Hartley

Maathuis

2021

Plants

View full text Add to dashboard Cite

Drought stress reduces annual global wheat yields by 20%. Silicon (Si) fertilisation has been proposed to improve plant drought stress tolerance. However, it is currently unknown if and how Si affects different wheat landraces, especially with respect to their innate Si accumulation properties. In this study, significant and consistent differences in Si accumulation between landraces were identified, allowing for the classification of high Si accumulators and low Si accumulators. Landraces from the two accumulation groups were then used to investigate the effect of Si during osmotic and drought stress. Si was found to improve growth marginally in high Si accumulators during osmotic stress. However, no significant effect of Si on growth during drought stress was found. It was further found that osmotic stress decreased Si accumulation for all landraces whereas drought increased it. Overall, these results suggest that the beneficial effect of Si commonly reported in similar studies is not universal and that the application of Si fertiliser as a solution to agricultural drought stress requires detailed understanding of genotype-specific responses to Si.

show abstract

Section: Discussioncontrasting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

The Effect of Silicon on Osmotic and Drought Stress Tolerance in Wheat Landraces

Thorne

Hartley

Maathuis

2021

Plants

View full text Add to dashboard Cite

show abstract

“…Si is taken up by the roots of plants in the form of H 4 SiO 4 [14] and its uptake by leaves is debatable and sometimes questioned. Some authors believe that this element is mostly or even completely taken up by the roots [15,16], while others report a high effectiveness of foliar Si application [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil and Foliar Silicon Application on the Reduction of Zinc Toxicity in Wheat

2020

View full text Add to dashboard Cite

The aim of the study was to compare soil and foliar application of Si to relieve stress in wheat caused by excess Zn in the soil. Two pot experiments were carried out in which the soil was contaminated with zinc sulphate at the dose of 600 mg kg−1 Zn before sowing. Si was applied in the soil in the following doses 200 mg kg−1 and 400 mg kg−1 Si and as foliar spraying in concentrations 2 mM L−1 and 6 mM L−1 Si in the form of sodium silicate. The applied dose of Zn was toxic to wheat and caused a significant decrease in the biomass of shoots and roots. Soil application of Si reduced the negative effect of Zn on plants and significantly increased the biomass of the tested organs. The foliar application of Si did not reduce the decrease of plant biomass. Soil contamination with Zn caused a drastic increase in Zn concentration in shoots and roots, while Si applied in the soil significantly decreased this concentration. The increase in soil pH, which was caused by sodium silicate, also affected the decrease in Zn concentration in plants. The plants absorbed Si applied to the soil, which is indicated by an increase in the Si content in shoots compared to the control. In the case of foliar spraying, only a higher dose of Si increased its concentration in the plants. The application of Si in the soil, in contrast to foliar application, reduced the transfer of Zn from roots to shoots. The higher effectiveness of soil application of Si than foliar application in alleviating the toxicity of Zn was associated with both an increase in pH and a higher uptake of Si by plants.

show abstract

“…The sterilized seeds were placed between Whatman (Little Chalfont, Buckinghamshire, UK) Grade 2 filter paper in Petri dishes (90 mm x 15 mm). Si, SA and hydropriming solutions prepared according to the doses were applied to each Petri dish as 3 ml, and the seeds were kept in hydropriming for 18 hours (Farooq et al, 2017), in Si for 12 hours (Othmani et al, 2020), and in SA for 12 hours (Sundstrom et al, 1987;Ceritoğlu and Erman, 2020). The seed/solution ratio for each Petri dish was adjusted as 2:1 g ml -1 (Johnson et al, 2005).…”

Section: Experimental Design and Treatment Detailsmentioning

confidence: 99%

The Effect of Seed Priming Applications on Germination Parameters of Red Clover (Trifolium pratense L.)

Özyazıcı

Açıkbaş

2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

This study aimed to determine the effects of silicon (Si) and salicylic acid (SA) seed priming applications on the germination parameters of red clover (Trifolium pratense L.). The study was carried out in Siirt University, Faculty of Agriculture, Field Crops Laboratory, under controlled conditions at 24±1 °C. The plant material of the study was Rajan red clover (T. pratense L.) cultivar. The laboratory study was carried out in Petri dishes according to the randomized plots trial design with 4 replications. The subject of the study consists of hydropriming application with 2 mM, 4 mM, and 6 mM priming doses of Si and 0.5 mM, 1.0 mM, and 1.5 mM priming doses of SA. The study also included the non-priming application as a control subject. The germination percentage, mean germination time, germination index, coefficient of uniformity of germination, and germination energy properties were examined in terms of the effect on germination development in different priming applications applied to red clover. Significant differences were found between the priming applications in terms of all germination parameters examined. It is thought that early germination, more uniform germination, and higher germination rate can be achieved with priming applications in plants with germination problems such as red clover. In this respect, 2 mM Si priming application can be recommended.

show abstract

Effect of Silicon Supply Methods on Durum Wheat (Triticum durum Desf.) Response to Drought Stress

Cited by 37 publications

References 27 publications

The Effect of Silicon on Osmotic and Drought Stress Tolerance in Wheat Landraces

The Effect of Silicon on Osmotic and Drought Stress Tolerance in Wheat Landraces

Effect of Soil and Foliar Silicon Application on the Reduction of Zinc Toxicity in Wheat

The Effect of Seed Priming Applications on Germination Parameters of Red Clover (Trifolium pratense L.)

Contact Info

Product

Resources

About