Abstract
Abstract Drought stress (DS) at different growth stages of spring wheat ( Triticum aestivum L.) may affect its grain yield and end‐use quality differently. The impact of drought stress at different growth stages on yield has been widely studied, but the impact on grain quality has not been thoroughly investigated. A 2‐year field experiment was conducted to evaluate the effects of DS at different growth stages on end‐use quality and grain yield in different spring wheat classes (soft white ‘Alturas,’ hard red ‘Coho,’ and hard white ‘Dayn’). The treatments included DS (from tillering to stem elongation, booting to heading, and anthesis to soft dough) plus a fully irrigated (well‐watered) check. We found significant differences between the three wheat classes in most end‐use quality parameters. Relative to the well‐watered conditions, DS from tillering to stem elongation and from booting to heading did not affect grain yield and most end‐use quality parameters. Flour protein, lactic acid and sucrose solvent retention capacities, and mixograph peak time were more impacted by post‐anthesis DS. These changes in end‐use quality were correlated and, thus, directly or indirectly affected baking performance. Our results indicate that reduced irrigation at early growth stages can maintain grain yield and end‐use quality of spring wheat of different classes, for example, grain yield of 437 g m −2 and flour protein of 13.2–16.4 g kg −1 across different classes subject to DS at early growth stages compared to 379 g m −2 and 13.9–17.9 g kg −1 subject to post‐anthesis DS.
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Claims 9
Claim · model-written summary
The three wheat classes differed significantly in most end-use quality parameters.
- Taxon
- spring wheat
Triticum aestivume1 - Material
- three wheat classese0
- Outcome
- end‐use quality parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences between the three wheat classes in most end‐use quality parameters”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Early drought stress did not affect spring wheat grain yield relative to well-watered conditions.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- DS from tillering to stem elongation and from booting to headinge0
- Outcome
- grain yielde0
- Direction
- did not affecte0
- Comparator
- well‐watered conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative to the well‐watered conditions, DS from tillering to stem elongation and from booting to heading did not affect grain yield and most end‐use quality parameters”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Early drought stress did not affect most spring wheat end-use quality parameters.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- DS from tillering to stem elongation and from booting to headinge0
- Outcome
- most end‐use quality parameterse0
- Direction
- did not affecte0
- Comparator
- well‐watered conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative to the well‐watered conditions, DS from tillering to stem elongation and from booting to heading did not affect grain yield and most end‐use quality parameters”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Post-anthesis drought had more impact on flour protein and two solvent retention capacities.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- post‐anthesis DSe0
- Outcome
- Flour protein, lactic acid and sucrose solvent retention capacitiese0
- Direction
- more impactede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flour protein, lactic acid and sucrose solvent retention capacities, and mixograph peak time were more impacted by post‐anthesis DS”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Post-anthesis drought had more impact on mixograph peak time.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- post‐anthesis DSe0
- Outcome
- mixograph peak timee0
- Direction
- more impactede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixograph peak time were more impacted by post‐anthesis DS”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Changes in end-use quality were correlated and affected baking performance.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- changes in end‐use qualitye0
- Outcome
- baking performancee0
- Qualifier
- directly or indirectlye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These changes in end‐use quality were correlated and, thus, directly or indirectly affected baking performance”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
The authors conclude that reduced early irrigation can maintain spring wheat grain yield and end-use quality.
- Taxon
- spring wheatTriticum aestivume0
- Outcome
- reduced irrigation at early growth stagese0
- Qualifier
- maintain grain yield and end‐use qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced irrigation at early growth stages can maintain grain yield and end‐use quality of spring wheat of different classes”
Claim · model-written summary
Early drought yielded 437 g m −2 versus 379 g m −2 after post-anthesis drought.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- DS at early growth stagese0
- Outcome
- grain yielde0
- Direction
- higherinferrede0
- Value
- 437 g m −2e0
- Qualifier
- 379 g m −2e0
- Comparator
- post‐anthesis DSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield of 437 g m −2 and flour protein of 13.2–16.4 g kg −1 across different classes subject to DS at early growth stages compared to 379 g m −2 and 13.9–17.9 g kg −1 subject to post‐anthesis DS”
e1“spring wheat ( Triticum aestivum L.)”
Claim · model-written summary
Early drought had flour protein of 13.2–16.4 g kg −1 versus 13.9–17.9 g kg −1 after post-anthesis drought.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- DS at early growth stagese0
- Outcome
- flour proteine0
- Direction
- lowerinferrede0
- Value
- 13.2–16.4 g kg −1e0
- Qualifier
- 13.9–17.9 g kg −1e0
- Comparator
- post‐anthesis DSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flour protein of 13.2–16.4 g kg −1 across different classes subject to DS at early growth stages compared to 379 g m −2 and 13.9–17.9 g kg −1 subject to post‐anthesis DS”
e1“spring wheat ( Triticum aestivum L.)”
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