Abstract
The translocation of labelled assimilates from the flag leaf blade to the ear and other parts of the plant was followed in wheat, 15-20 days after anthesis. The velocity of assimilates moving through the top internode varied from 80 to 100 cm/hr and the velocity of movement down the leaf sheath was about half this value. Removing grains from the head reduced the velocity of the assimilates moving up the stem from the node and increased their downward velocity in the stem. How-ever, the rate of movement out of the leaf was unaffected by the removal of grains. With full grain development assimilates from the flag leaf moved directly from the node of insertion of the leaf up the stem to the ear. The results are discussed in relation to the vascular anatomy of wheat and the mechanism and factors controlling translocation.
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Claims 6
Claim · model-written summary
Assimilates moved through the top internode at 80 to 100 cm/hr.
- Taxon
- wheat
Triticum aestivume1 - Organ / stage
- top internodee0
- Outcome
- velocity of assimilates moving through the top internodee0
- Value
- 80 to 100 cm/hre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The velocity of assimilates moving through the top internode varied from 80 to 100 cm/hr”
e1“was followed in wheat, 15-20 days after anthesis.”
Claim · model-written summary
Assimilates moved down the leaf sheath at about half the top-internode velocity.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- leaf sheathe0
- Outcome
- velocity of movement down the leaf sheathe0
- Direction
- about halfe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the velocity of movement down the leaf sheath was about half this value.”
e1“was followed in wheat, 15-20 days after anthesis.”
Claim · model-written summary
Grain removal reduced upward assimilate velocity in the stem.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Removing grains from the heade0
- Outcome
- velocity of the assimilates moving up the steme0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removing grains from the head reduced the velocity of the assimilates moving up the stem from the node”
e1“was followed in wheat, 15-20 days after anthesis.”
Claim · model-written summary
Grain removal increased downward assimilate velocity in the stem.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Removing grains from the heade0
- Outcome
- downward velocity in the steme0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removing grains from the head reduced the velocity of the assimilates moving up the stem from the node and increased their downward velocity in the stem.”
e1“was followed in wheat, 15-20 days after anthesis.”
Claim · model-written summary
Grain removal left movement out of the leaf unaffected.
- Taxon
- wheatTriticum aestivume1
- Treatment
- removal of grainse0
- Outcome
- rate of movement out of the leafe0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of movement out of the leaf was unaffected by the removal of grains.”
e1“was followed in wheat, 15-20 days after anthesis.”
Claim · model-written summary
With full grain development, flag-leaf assimilates moved directly from the leaf node up the stem to the ear.
- Taxon
- wheatTriticum aestivume1
- Outcome
- assimilates from the flag leaf moved directly from the node of insertion of the leaf up the stem to the eare0
- Qualifier
- full grain developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With full grain development assimilates from the flag leaf moved directly from the node of insertion of the leaf up the stem to the ear.”
e1“was followed in wheat, 15-20 days after anthesis.”