Abstract
Drought is one of the major environmental stresses, resulting in serious yield reductions in wheat production. Silicon (Si) has been considered beneficial to enhancing wheat resistance to drought stress. However, few studies have explored the mediated effects of foliar supplementation of Si on drought stress imposed at different wheat growth stages. Therefore, a field experiment was carried out to investigate the effects of Si supplementation on the physiological and biochemical responses of wheat to drought stress imposed at the jointing (D-jointing), anthesis (D-anthesis) and filling (D-filling) stages. Our results showed that a moderate water deficit markedly decreased the dry matter accumulation, leaf relative water content (LRWC), photosynthetic rate (Pn), stomatal conductance (Sc), transpiration rate (Tr) and antioxidant activity [peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT)]. On the contrary, it remarkably increased the content of osmolytes (proline, soluble sugar, soluble protein) and lipid peroxidation. The grain yields of D-jointing, D-anthesis and D-filling treatments were 9.59%, 13.9% and 18.9% lower, respectively, compared to the control treatment (CK). However, foliar supplementation of Si at the anthesis and filling stages significantly improved plant growth under drought stress due to the increased Si content. Consequently, the improvement in antioxidant activity and soluble sugar, and the reduction in the content of ROS, increased the LRWC, chlorophyll content, Pn, Sc and Tr, and ultimately boosted wheat yield by 5.71% and 8.9%, respectively, in comparison with the non-Si-treated plants subjected to water stress at the anthesis and filling stages. However, the mitigating effect of Si application was not significant at the jointing stage. It was concluded that foliar supplementation of Si, especially at the reproductive stage, was effective in alleviating drought-induced yield reduction.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Moderate water deficit decreased dry matter, leaf water content, gas exchange and antioxidant activity.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- moderate water deficite0
- Outcome
- dry matter accumulation, leaf relative water content (LRWC), photosynthetic rate (Pn)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a moderate water deficit markedly decreased the dry matter accumulation, leaf relative water content (LRWC), photosynthetic rate (Pn), stomatal conductance (Sc), transpiration rate (Tr) and antioxidant activity [peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT)]”
t0“Wheat”
Claim · model-written summary
Water deficit increased osmolyte content and lipid peroxidation.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Drought Stresst0
- Outcome
- content of osmolytes (proline, soluble sugar, soluble protein) and lipid peroxidatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it remarkably increased the content of osmolytes (proline, soluble sugar, soluble protein) and lipid peroxidation”
t0“Winter Wheat to Drought Stress”
Claim · model-written summary
Jointing-stage drought reduced grain yield by 9.59%.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- D-jointinge0
- Outcome
- grain yieldse0
- Direction
- lowere0
- Value
- 9.59%e0
- Comparator
- control treatment (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yields of D-jointing, D-anthesis and D-filling treatments were 9.59%, 13.9% and 18.9% lower, respectively, compared to the control treatment (CK)”
t0“Wheat”
Claim · model-written summary
Anthesis-stage drought reduced grain yield by 13.9%.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- D-anthesise0
- Outcome
- grain yieldse0
- Direction
- lowere0
- Value
- 13.9%e0
- Comparator
- control treatment (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yields of D-jointing, D-anthesis and D-filling treatments were 9.59%, 13.9% and 18.9% lower, respectively, compared to the control treatment (CK)”
t0“Wheat”
Claim · model-written summary
Filling-stage drought reduced grain yield by 18.9%.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- D-fillinge0
- Outcome
- grain yieldse0
- Direction
- lowere0
- Value
- 18.9%e0
- Comparator
- control treatment (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yields of D-jointing, D-anthesis and D-filling treatments were 9.59%, 13.9% and 18.9% lower, respectively, compared to the control treatment (CK)”
t0“Wheat”
Claim · model-written summary
Silicon at anthesis improved wheat growth under drought.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar supplementation of Si at the anthesise0
- Outcome
- plant growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar supplementation of Si at the anthesis and filling stages significantly improved plant growth under drought stress due to the increased Si content”
t0“wheat”
Claim · model-written summary
Silicon at filling improved wheat growth under drought.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- filling stagese0
- Outcome
- plant growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar supplementation of Si at the anthesis and filling stages significantly improved plant growth under drought stress due to the increased Si content”
t0“wheat”
Claim · model-written summary
Silicon raised wheat yield 5.71% under anthesis-stage drought.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Sit0
- Outcome
- wheat yielde0
- Direction
- boostede0
- Value
- 5.71%e0
- Qualifier
- anthesise0
- Comparator
- non-Si-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boosted wheat yield by 5.71% and 8.9%, respectively, in comparison with the non-Si-treated plants subjected to water stress at the anthesis and filling stages”
t0“Silicon”
Claim · model-written summary
Silicon raised wheat yield 8.9% under filling-stage drought.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Sit0
- Outcome
- wheat yielde0
- Direction
- boostede0
- Value
- 8.9%e0
- Qualifier
- filling stagese0
- Comparator
- non-Si-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boosted wheat yield by 5.71% and 8.9%, respectively, in comparison with the non-Si-treated plants subjected to water stress at the anthesis and filling stages”
t0“Silicon”
Claim · model-written summary
Silicon mitigation at jointing was not significant.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- jointing stagee0
- Treatment
- Si applicatione0
- Outcome
- mitigating effecte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mitigating effect of Si application was not significant at the jointing stage”
t0“Wheat”
The same questions in other papers
silicon atom · growth · Triticum aestivum (wheat)Results differ
73 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- no effect
- no effect
77 papers more in this group
See all 81 papers →silicon atom · yield · Triticum aestivum (wheat)Results differ
84 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- no effect
86 papers more in this group
See all 90 papers →drought · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
109 papers in the same direction as this paper · 18 in the opposite direction
- positive
- negative
- positive
124 papers more in this group
See all 128 papers →drought · physiology: water · Triticum aestivum (wheat)Positive and negative results
145 papers in the same direction as this paper · 60 in the opposite direction
- positive
- negative
- positive
202 papers more in this group
See all 206 papers →application · growth · Triticum aestivum (wheat)Positive and negative results
272 papers in the same direction as this paper · 32 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- no effect
303 papers more in this group
See all 307 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.