Abstract
A model was constructed to describe the partitioning of carbon on the third and seventh day from anthesis for well-watered and droughted plants of two wheat varieties (Triticum aestivum L. cv. Warigal and Condor). The glasshouse-grown plants were detillered so that a simplified model could be derived for the main stem. The 9-d drought treatment, imposed just after anthesis during the period of cell division in the grains, reduced grain yield by 18 per cent in Warigal and 30 per cent in Condor. Net carbon fixation was up to 60 per cent higher in Warigal than Condor towards the end of the drought period and this correlated with better osmotic adjustment in the flag leaf. Carbon partitioning between plant organs responded to water deficit more rapidly than net carbon fixation. On day 3, carbon allocation to the roots of droughted plants was maintained in Condor and increased by 14 per cent in Warigal, whereas carbon allocation to the ear decreased in both varieties. However the roots did not compete well with the ear when the water deficit became more severe. Warigal accumulated 3 times more stem reserves than Condor under drought. In the roots, the pattern of carbon allocation between respiration and carbon accumulation changed soon after imposition of drought. Although total root respiration decreased under drought it became more energy efficient, particularly for Warigal, as less respiration took place via the alternative pathway. On day 3, the larger carbon allocation to the roots and the lower root respiration accounted for the 4-times larger sugar accumulation in droughted roots of Warigal compared with those of Condor. Osmotic adjustment in mature leaves and roots may be of importance for the maintenance of vital processes and for recovery after drought.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 15
Claim · model-written summary
The 9-day drought reduced grain yield by 18% in Warigal.
- Taxon
- Triticum aestivum L.
Triticum aestivume0 - Material
- Warigale1
- Treatment
- 9-d drought treatmente1
- Outcome
- grain yielde1
- Direction
- reducede1
- Value
- 18 per cente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“The 9-d drought treatment, imposed just after anthesis during the period of cell division in the grains, reduced grain yield by 18 per cent in Warigal and 30 per cent in Condor”
Claim · model-written summary
The 9-day drought reduced grain yield by 30% in Condor.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Condore1
- Treatment
- 9-d drought treatmente1
- Outcome
- grain yielde1
- Direction
- reducede1
- Value
- 30 per cente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“The 9-d drought treatment, imposed just after anthesis during the period of cell division in the grains, reduced grain yield by 18 per cent in Warigal and 30 per cent in Condor”
Claim · model-written summary
Net carbon fixation was higher in Warigal than in Condor towards the end of drought.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Warigale2
- Outcome
- Net carbon fixatione2
- Direction
- highere2
- Value
- up to 60 per cente2
- Qualifier
- towards the end of the drought periode2
- Comparator
- Condore2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e2“Net carbon fixation was up to 60 per cent higher in Warigal than Condor towards the end of the drought period”
Claim · model-written summary
Better osmotic adjustment in the flag leaf correlated with the net carbon fixation difference under drought.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Organ / stage
- flag leafe3
- Outcome
- osmotic adjustmente3
- Direction
- bettere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e3“this correlated with better osmotic adjustment in the flag leaf”
Claim · model-written summary
Carbon partitioning between plant organs responded to water deficit more rapidly than net carbon fixation.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Outcome
- Carbon partitioning between plant organse4
- Qualifier
- responded to water deficit more rapidly than net carbon fixatione4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e4“Carbon partitioning between plant organs responded to water deficit more rapidly than net carbon fixation”
Claim · model-written summary
On day 3 of drought, carbon allocation to the roots was maintained in Condor.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Condore5
- Outcome
- carbon allocation to the rootse5
- Direction
- maintainede5
- Qualifier
- On day 3e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e5“On day 3, carbon allocation to the roots of droughted plants was maintained in Condor and increased by 14 per cent in Warigal”
Claim · model-written summary
On day 3 of drought, carbon allocation to the roots increased by 14% in Warigal.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Warigale5
- Outcome
- carbon allocation to the rootse5
- Direction
- increasede5
- Value
- 14 per cente5
- Qualifier
- On day 3e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e5“On day 3, carbon allocation to the roots of droughted plants was maintained in Condor and increased by 14 per cent in Warigal”
Claim · model-written summary
Carbon allocation to the ear decreased under drought in both varieties.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Outcome
- carbon allocation to the eare6
- Direction
- decreasede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e6“whereas carbon allocation to the ear decreased in both varieties”
Claim · model-written summary
Roots did not compete well with the ear when the water deficit became more severe.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Outcome
- compete well with the eare7
- Direction
- did not compete welle7
- Qualifier
- when the water deficit became more severee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e7“the roots did not compete well with the ear when the water deficit became more severe”
Claim · model-written summary
Warigal accumulated 3 times more stem reserves than Condor under drought.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Warigale1
- Treatment
- droughte1
- Outcome
- stem reservese1
- Direction
- accumulated 3 times moree1
- Value
- 3 timese1
- Comparator
- Condore1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“Warigal accumulated 3 times more stem reserves than Condor under drought”
Claim · model-written summary
Total root respiration decreased under drought.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- droughte1
- Outcome
- total root respiratione1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“Although total root respiration decreased under drought”
Claim · model-written summary
Root respiration became more energy efficient under drought, particularly in Warigal.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Warigale1
- Outcome
- energy efficiente1
- Direction
- more energy efficiente1
- Qualifier
- as less respiration took place via the alternative pathwaye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“it became more energy efficient, particularly for Warigal, as less respiration took place via the alternative pathway”
Claim · model-written summary
Sugar accumulation in droughted roots was 4 times larger in Warigal than in Condor.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Material
- Warigale1
- Organ / stage
- rootse1
- Treatment
- droughtede1
- Outcome
- sugar accumulation in droughted rootse1
- Direction
- largere1
- Value
- 4-timese1
- Comparator
- Condore1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“the larger carbon allocation to the roots and the lower root respiration accounted for the 4-times larger sugar accumulation in droughted roots of Warigal compared with those of Condor”
Claim · model-written summary
Larger carbon allocation to roots and lower root respiration may explain the sugar accumulation in droughted roots of Warigal.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Outcome
- sugar accumulation in droughted rootse1
- Qualifier
- the larger carbon allocation to the roots and the lower root respiratione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“the larger carbon allocation to the roots and the lower root respiration accounted for the 4-times larger sugar accumulation in droughted roots of Warigal compared with those of Condor”
Claim · model-written summary
Osmotic adjustment in mature leaves and roots may be important for maintaining vital processes and recovery after drought.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Organ / stage
- mature leaves and rootse1
- Outcome
- maintenance of vital processese1
- Qualifier
- Osmotic adjustment in mature leaves and rootse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Triticum aestivum L. cv. Warigal and Condor”
e1“Osmotic adjustment in mature leaves and roots may be of importance for the maintenance of vital processes and for recovery after drought”
The same questions in other papers
drought · yield · Triticum aestivum (wheat)Positive and negative results
536 papers in the same direction as this paper · 95 in the opposite direction
- positive
- negative
- negative
628 papers more in this group
See all 632 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.