Abstract
Summary Removal of approximately half the leaf area or fibrous roots at either the 6‐ or 12‐leaf stage of growth in sugar beet ( Beta vulgaris L.) was followed by restoration of the preclipping ratio of leaf blade weight to fibrous root weight. Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades. Root pruning caused the relative growth rate of the fibrous roots to increase for at least part of the recovery period. Root pruning further decreased the relative growth rate of the blades while restoration of the blade‐to‐root ratio was taking place. These responses support the hypothesis that a functional equilibrium controls leaf and root growth of sugar beet as a result of interactions among the several physiological processes involved.
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Claims 5
Claim · model-written summary
Following leaf-area or fibrous-root removal, the leaf-blade to fibrous-root weight ratio returned to its preclipping level.
Beta vulgaris subsp. vulgarisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of approximately half the leaf area or fibrous roots at either the 6‐ or 12‐leaf stage of growth in sugar beet ( Beta vulgaris L.) was followed by restoration of the preclipping ratio of leaf blade weight to fibrous root weight”
t0“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
t1“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
e1“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e2“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e3“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
Claim · model-written summary
Leaf removal decreased the fraction of new growth allocated to fibrous roots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots”
t0“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
t1“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
e1“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e2“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e3“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
Claim · model-written summary
Leaf removal increased the relative growth rate of leaf blades.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in increase in the relative growth rate of the leaf blades”
t0“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
t1“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
e1“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e2“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e3“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
Claim · model-written summary
Root pruning increased the relative growth rate of fibrous roots during part of recovery.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root pruning caused the relative growth rate of the fibrous roots to increase for at least part of the recovery period”
t0“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
t1“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
e1“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e2“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e3“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
Claim · model-written summary
Root pruning decreased the relative growth rate of leaf blades as the blade-to-root ratio recovered.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root pruning further decreased the relative growth rate of the blades while restoration of the blade‐to‐root ratio was taking place”
t0“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
t1“Recovery from Partial Defoliation and Root Pruning in Sugar Beet1”
e1“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e2“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
e3“Leaf removal resulted in a rapid decrease in the fraction of new growth going to the fibrous roots, and in increase in the relative growth rate of the leaf blades.”
The same questions in other papers
pruning · growth · Beta vulgaris (beet)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
4 papers more in this group
See all 8 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.