Abstract
The pattern of distribution of dry matter and phosphorus was followed in individual plants harvested from a field crop of spring wheat throughout its development. There was a continued uptake of phosphorus with time and almost half of the total phosphorus was accumulated in the post-anthesis period of growth. The various component parts of the main shoot were followed in detail and both individual leaves and the stem showed substantial net losses of phosphorus with time well before they reached their dry weight maxima. The ear was the major sink for phosphorus and it was estimated that approximately one third of its phosphorus content was supplied by retranslocation. The main shoot stem and leaves also showed a significant decline in d. wt during the final stages of grain development. Half-ear removal at anthesis increased both grain set and the growth of the grain of the upper florets of the remaining spikelets. Defoliation had little effect on grain yield but resulted in a reduction in the phosphorus content of the grain.
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Claims 11
Claim · model-written summary
Spring wheat continued taking up phosphorus through development.
- Taxon
- Spring Wheat
Triticum aestivumt0 - Outcome
- uptake of phosphoruse0
- Direction
- continuede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a continued uptake of phosphorus with time”
t0“Spring Wheat”
Claim · model-written summary
Almost half of total spring wheat phosphorus accumulated after anthesis.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- post-anthesis periode0
- Outcome
- total phosphorus was accumulatede0
- Value
- almost halfe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“almost half of the total phosphorus was accumulated in the post-anthesis period of growth”
t0“Spring Wheat”
Claim · model-written summary
Individual leaves lost substantial net phosphorus before reaching maximum dry weight.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- individual leavese0
- Outcome
- phosphoruse0
- Direction
- net lossese0
- Qualifier
- well before they reached their dry weight maximae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both individual leaves and the stem showed substantial net losses of phosphorus with time well before they reached their dry weight maxima”
t0“Spring Wheat”
Claim · model-written summary
The stem lost substantial net phosphorus before reaching maximum dry weight.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- steme0
- Outcome
- phosphoruse0
- Direction
- net lossese0
- Qualifier
- well before they reached their dry weight maximae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both individual leaves and the stem showed substantial net losses of phosphorus with time well before they reached their dry weight maxima”
t0“Spring Wheat”
Claim · model-written summary
The ear was the major phosphorus sink.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- eare0
- Outcome
- major sink for phosphoruse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ear was the major sink for phosphorus”
t0“Spring Wheat”
Claim · model-written summary
About one third of ear phosphorus was estimated to come from retranslocation.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- eare1
- Outcome
- phosphorus contente0
- Value
- approximately one thirde0
- Qualifier
- supplied by retranslocatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“approximately one third of its phosphorus content was supplied by retranslocation”
e1“The ear was the major sink for phosphorus”
t0“Spring Wheat”
Claim · model-written summary
Main-shoot stems and leaves significantly lost dry weight late in grain development.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- main shoot stem and leavese0
- Outcome
- d. wte0
- Direction
- declinee0
- Qualifier
- final stages of grain developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main shoot stem and leaves also showed a significant decline in d. wt during the final stages of grain development”
t0“Spring Wheat”
Claim · model-written summary
Removing half the ear at anthesis increased grain set in upper florets of remaining spikelets.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- upper florets of the remaining spikeletse0
- Treatment
- Half-ear removal at anthesise0
- Outcome
- grain sete0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Half-ear removal at anthesis increased both grain set and the growth of the grain of the upper florets of the remaining spikelets”
t0“Spring Wheat”
Claim · model-written summary
Removing half the ear at anthesis increased grain growth in upper florets of remaining spikelets.
- Taxon
- Spring WheatTriticum aestivumt0
- Organ / stage
- upper florets of the remaining spikeletse0
- Treatment
- Half-ear removal at anthesise0
- Outcome
- growth of the graine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Half-ear removal at anthesis increased both grain set and the growth of the grain of the upper florets of the remaining spikelets”
t0“Spring Wheat”
Claim · model-written summary
Defoliation had little effect on grain yield.
- Taxon
- Spring WheatTriticum aestivumt0
- Treatment
- Defoliatione0
- Outcome
- grain yielde0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Defoliation had little effect on grain yield”
t0“Spring Wheat”
Claim · model-written summary
Defoliation reduced grain phosphorus content.
- Taxon
- Spring WheatTriticum aestivumt0
- Treatment
- Defoliatione0
- Outcome
- phosphorus content of the graine0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Defoliation had little effect on grain yield but resulted in a reduction in the phosphorus content of the grain”
t0“Spring Wheat”
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See all 93 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.