Abstract
Grain filling in wheat crops grown in semiarid regions may depend more on stored water‐soluble carbohydrates (WSC) than on current photosynthesis. We evaluated the hypothesis that internode WSC content, specific content (WSC content/internode length), and concentration (WSC content/internode weight) of genotypes affect accumulation and mobilization of stem WSC. Genotypic variation for internode WSC‐related traits was measured on the main stem at 10‐d intervals in 11 diverse wheats grown under well‐watered and droughted field conditions across 2 yr. Relationships among internode WSC‐related traits were determined. Date of harvest was the most important factor affecting internode WSC‐related traits followed by genotype, irrigation, and year. Genotype × date of harvest was the most important interaction. Drought reduced WSC content, specific content, and concentration in different internodes, except WSC concentration in peduncles. Mobilized WSC from peduncle, penultimate, and lower internodes ranged from 70 to 244 mg, from 95 to 227 mg, and from 175 to 450 mg, respectively. The lower internodes provided 51% of the stem mobilized WSC. Mobilized WSC was higher in well‐watered than in droughted conditions for penultimate (164 vs. 135 mg) and lower internodes (274 vs. 244 mg). Drought improved mobilization efficiency in the peduncle, penultimate, and lower internodes by 33, 17, and 11%, respectively. Postanthesis maximum WSC content was highly correlated ( r = 0.89 to 0.99) with the amount of WSC mobilized in different internodes, and could be used as a selection criterion to stabilize grain yield under stressful environments.
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Claims 14
Claim · model-written summary
Harvest date was the strongest factor for internode WSC traits, followed by genotype, irrigation and year.
- Taxon
- Wheat
Triticum aestivumt0 - Organ / stage
- internodee0
- Outcome
- internode WSC‐related traitse0
- Direction
- most importante0
- Qualifier
- Date of harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date of harvest was the most important factor affecting internode WSC‐related traits followed by genotype, irrigation, and year.”
t0“Wheat”
Claim · model-written summary
Genotype by harvest date was the most important interaction for WSC traits.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- Genotype × date of harveste0
- Direction
- most importante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotype × date of harvest was the most important interaction.”
t0“Wheat”
Claim · model-written summary
Drought reduced internode WSC content, specific content and concentration, except peduncle concentration.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Droughte0
- Outcome
- WSC content, specific content, and concentratione0
- Direction
- reducede0
- Qualifier
- except WSC concentration in pedunclese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought reduced WSC content, specific content, and concentration in different internodes, except WSC concentration in peduncles.”
t0“Wheat”
Claim · model-written summary
Mobilized WSC from peduncles ranged from 70 to 244 mg.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- pedunclee0
- Outcome
- Mobilized WSCe0
- Direction
- rangede0
- Value
- 70 to 244 mge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobilized WSC from peduncle, penultimate, and lower internodes ranged from 70 to 244 mg, from 95 to 227 mg, and from 175 to 450 mg, respectively.”
t0“Wheat”
Claim · model-written summary
Mobilized WSC from penultimate internodes ranged from 95 to 227 mg.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- penultimatee0
- Outcome
- Mobilized WSCe0
- Direction
- rangede0
- Value
- 95 to 227 mge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobilized WSC from peduncle, penultimate, and lower internodes ranged from 70 to 244 mg, from 95 to 227 mg, and from 175 to 450 mg, respectively.”
t0“Wheat”
Claim · model-written summary
Mobilized WSC from lower internodes ranged from 175 to 450 mg.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- lower internodese0
- Outcome
- Mobilized WSCe0
- Direction
- rangede0
- Value
- 175 to 450 mge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobilized WSC from peduncle, penultimate, and lower internodes ranged from 70 to 244 mg, from 95 to 227 mg, and from 175 to 450 mg, respectively.”
t0“Wheat”
Claim · model-written summary
Lower internodes supplied 51% of mobilized stem WSC.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- lower internodese0
- Outcome
- stem mobilized WSCe0
- Value
- 51%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower internodes provided 51% of the stem mobilized WSC.”
t0“Wheat”
Claim · model-written summary
Well-watered penultimate internodes mobilized more WSC than droughted ones, 164 versus 135 mg.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- penultimatee0
- Treatment
- well‐waterede0
- Outcome
- Mobilized WSCe0
- Direction
- highere0
- Value
- 164 vs. 135 mge0
- Comparator
- droughted conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobilized WSC was higher in well‐watered than in droughted conditions for penultimate (164 vs. 135 mg) and lower internodes (274 vs. 244 mg).”
t0“Wheat”
Claim · model-written summary
Well-watered lower internodes mobilized more WSC than droughted ones, 274 versus 244 mg.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- lower internodese0
- Treatment
- well‐waterede0
- Outcome
- Mobilized WSCe0
- Direction
- highere0
- Value
- 274 vs. 244 mge0
- Comparator
- droughted conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobilized WSC was higher in well‐watered than in droughted conditions for penultimate (164 vs. 135 mg) and lower internodes (274 vs. 244 mg).”
t0“Wheat”
Claim · model-written summary
Drought increased peduncle mobilization efficiency by 33%.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- pedunclee0
- Treatment
- Droughte0
- Outcome
- mobilization efficiencye0
- Direction
- improvede0
- Value
- 33e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought improved mobilization efficiency in the peduncle, penultimate, and lower internodes by 33, 17, and 11%, respectively.”
t0“Wheat”
Claim · model-written summary
Drought increased penultimate internode mobilization efficiency by 17%.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- penultimatee0
- Treatment
- Droughte0
- Outcome
- mobilization efficiencye0
- Direction
- improvede0
- Value
- 17e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought improved mobilization efficiency in the peduncle, penultimate, and lower internodes by 33, 17, and 11%, respectively.”
t0“Wheat”
Claim · model-written summary
Drought increased lower internode mobilization efficiency by 11%.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- lower internodese0
- Treatment
- Droughte0
- Outcome
- mobilization efficiencye0
- Direction
- improvede0
- Value
- 11%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought improved mobilization efficiency in the peduncle, penultimate, and lower internodes by 33, 17, and 11%, respectively.”
t0“Wheat”
Claim · model-written summary
Postanthesis maximum WSC content correlated strongly with mobilized WSC, with r from 0.89 to 0.99.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- internodese0
- Outcome
- amount of WSC mobilizede0
- Value
- r = 0.89 to 0.99e0
- Comparator
- Postanthesis maximum WSC contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postanthesis maximum WSC content was highly correlated ( r = 0.89 to 0.99) with the amount of WSC mobilized in different internodes”
t0“Wheat”
Claim · model-written summary
Postanthesis maximum WSC content was proposed as a selection criterion for stable grain yield under stress.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- selection criterion to stabilize grain yielde0
- Qualifier
- under stressful environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“could be used as a selection criterion to stabilize grain yield under stressful environments.”
t0“Wheat”
The same questions in other papers
drought · quality: sugar starch · Triticum aestivum (wheat)Results differ
40 papers in the same direction as this paper · 11 in the opposite direction
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