Abstract
(Received 18 October, 1999; accepted 27 November, 2001) Abstract There are conflicting reports about the sensitivity of sugarbeet (Beta vulgaris L.) to water stress during different growth stages. Although, it is generally believed that the crop benefits from irrigation, opinions still differ as to which growth stage irrigation should be applied. This study evaluated the responses of sugarbeet leaf growth, sugar yield and yield components to soil water deficit imposed at various periods during growth in a glasshouse. Leaf growth showed high sensitivity to soil water deficit and responses varied with periods at which the deficit occurred. Water deficit early in the growing season had larger effects on leaf growth, leaf extension rate (LER), area of individual leaf, and leaf area index (LAI). Mid- or late-season soil water deficit showed relatively smaller effects on leaf growth. Re-watering resulted in compensatory leaf growth in early stressed plants. Both early (ES) and late (LS) soil water deficit decreased sugar yield and sugar concentrations. However, there were no significant (P
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Claims 8
Claim · model-written summary
Sugarbeet leaf growth was highly sensitive to soil water deficit, with response varying by deficit period.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- soil water deficite0
- Outcome
- Leaf growthe0
- Direction
- high sensitivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf growth showed high sensitivity to soil water deficit and responses varied with periods at which the deficit occurred.”
t0“Sugarbeet”
Claim · model-written summary
Early-season water deficit had larger effects on sugarbeet leaf growth, leaf extension rate, individual leaf area and leaf area index.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- Water deficit early in the growing seasone0
- Outcome
- leaf growth, leaf extension rate (LER), area of individual leaf, and leaf area index (LAI)e0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit early in the growing season had larger effects on leaf growth, leaf extension rate (LER), area of individual leaf, and leaf area index (LAI).”
t0“Sugarbeet”
Claim · model-written summary
Mid- or late-season water deficit had relatively smaller effects on sugarbeet leaf growth.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- Mid- or late-season soil water deficite0
- Outcome
- leaf growthe0
- Direction
- smallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mid- or late-season soil water deficit showed relatively smaller effects on leaf growth.”
t0“Sugarbeet”
Claim · model-written summary
Rewatering produced compensatory leaf growth in early-stressed sugarbeet plants.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- Re-wateringe0
- Outcome
- compensatory leaf growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Re-watering resulted in compensatory leaf growth in early stressed plants.”
t0“Sugarbeet”
Claim · model-written summary
Early soil water deficit decreased sugarbeet sugar yield.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- early (ES)e0
- Outcome
- sugar yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both early (ES) and late (LS) soil water deficit decreased sugar yield and sugar concentrations.”
t0“Sugarbeet”
Claim · model-written summary
Late soil water deficit decreased sugarbeet sugar yield.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- late (LS) soil water deficite0
- Outcome
- sugar yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both early (ES) and late (LS) soil water deficit decreased sugar yield and sugar concentrations.”
t0“Sugarbeet”
Claim · model-written summary
Early soil water deficit decreased sugarbeet sugar concentration.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- early (ES)e0
- Outcome
- sugar concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both early (ES) and late (LS) soil water deficit decreased sugar yield and sugar concentrations.”
t0“Sugarbeet”
Claim · model-written summary
Late soil water deficit decreased sugarbeet sugar concentration.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- late (LS) soil water deficite0
- Outcome
- sugar concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both early (ES) and late (LS) soil water deficit decreased sugar yield and sugar concentrations.”
t0“Sugarbeet”
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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.