Abstract
Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment. The rate of leaf extension recovered to the rate of control plants within 4-6 days of rewatering and then exceeded the control rate for up to 28 days. During this time, four or five new leaves emerged. The maximum rate of leaf extension for individual leaves during recovery was up to 20% higher than rates typical for leaves of the same insertion on well watered control plants. During an initial recovery phase which followed the 28-day water deficit, and which lasted 20 days from rewatering, the rates of increase in tiller number, leaf number, and leaf area per plant were greater than control rates by 38, 48 and 51%, respectively. Rates for these components of yield then normalized. Relatively small differences among treatments were measured for rate of shoot dry matter accumulation. Final shoot dry weight was approximately proportional to the number of 'non- drought' days, which were defined as those days on which the leaves showed no sign of wilting. This also corresponded to day-time leaf water potentials higher (less negative) than - 1400 kPa.
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Claims 10
Claim · model-written summary
Leaf extension rate recovered to the control rate within 4-6 days of rewatering after water deficits
- Taxon
- Bromus catharticus
Bromus catharticuse0 - Treatment
- water deficitse0
- Outcome
- rate of leaf extensione1
- Direction
- recovered toe1
- Qualifier
- within 4-6 days of rewateringe1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e1“The rate of leaf extension recovered to the rate of control plants within 4-6 days of rewatering and then exceeded the control rate for up to 28 days”
Claim · model-written summary
Leaf extension rate exceeded the control rate for up to 28 days after rewatering
- Taxon
- Bromus catharticusBromus catharticuse0
- Treatment
- water deficitse0
- Outcome
- rate of leaf extensione1
- Direction
- exceedede1
- Qualifier
- for up to 28 dayse1
- Comparator
- control ratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e1“The rate of leaf extension recovered to the rate of control plants within 4-6 days of rewatering and then exceeded the control rate for up to 28 days”
Claim · model-written summary
The maximum leaf extension rate of individual leaves during recovery was up to 20% higher than in well watered control plants
- Taxon
- Bromus catharticusBromus catharticuse0
- Organ / stage
- individual leavese2
- Treatment
- water deficitse0
- Outcome
- maximum rate of leaf extensione2
- Direction
- highere2
- Value
- up to 20%e2
- Comparator
- well watered control plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e2“The maximum rate of leaf extension for individual leaves during recovery was up to 20% higher than rates typical for leaves of the same insertion on well watered control plants”
Claim · model-written summary
Tiller number increase rate during the initial recovery phase was greater than control by 38%
- Taxon
- Bromus catharticusBromus catharticuse0
- Treatment
- 28-day water deficite3
- Outcome
- tiller numbere3
- Direction
- greater thane3
- Value
- 38e3
- Comparator
- control ratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e3“During an initial recovery phase which followed the 28-day water deficit, and which lasted 20 days from rewatering, the rates of increase in tiller number, leaf number, and leaf area per plant were greater than control rates by 38, 48 and 51%, respectively”
Claim · model-written summary
Leaf number increase rate during the initial recovery phase was greater than control by 48%
- Taxon
- Bromus catharticusBromus catharticuse0
- Treatment
- 28-day water deficite3
- Outcome
- leaf numbere3
- Direction
- greater thane3
- Value
- 48e3
- Comparator
- control ratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e3“During an initial recovery phase which followed the 28-day water deficit, and which lasted 20 days from rewatering, the rates of increase in tiller number, leaf number, and leaf area per plant were greater than control rates by 38, 48 and 51%, respectively”
Claim · model-written summary
Leaf area increase rate during the initial recovery phase was greater than control by 51%
- Taxon
- Bromus catharticusBromus catharticuse0
- Treatment
- 28-day water deficite3
- Outcome
- leaf areae3
- Direction
- greater thane3
- Value
- 51e3
- Comparator
- control ratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e3“During an initial recovery phase which followed the 28-day water deficit, and which lasted 20 days from rewatering, the rates of increase in tiller number, leaf number, and leaf area per plant were greater than control rates by 38, 48 and 51%, respectively”
Claim · model-written summary
Rates of yield components normalized after the initial recovery phase
- Taxon
- Bromus catharticusBromus catharticuse0
- Outcome
- Rates for these components of yielde4
- Qualifier
- then normalizede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e4“Rates for these components of yield then normalized”
Claim · model-written summary
Shoot dry matter accumulation rate showed relatively small differences among treatments
- Taxon
- Bromus catharticusBromus catharticuse0
- Outcome
- rate of shoot dry matter accumulatione5
- Qualifier
- Relatively small differences among treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e5“Relatively small differences among treatments were measured for rate of shoot dry matter accumulation”
Claim · model-written summary
Final shoot dry weight was approximately proportional to the number of non-drought days
- Taxon
- Bromus catharticusBromus catharticuse0
- Outcome
- Final shoot dry weighte6
- Direction
- increaseinferrede6
- Qualifier
- approximately proportionale6
- Setting
- controlled environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e6“Final shoot dry weight was approximately proportional to the number of 'non- drought' days”
Claim · model-written summary
Day-time leaf water potentials were higher than -1400 kPa on non-drought days
- Taxon
- Bromus catharticusBromus catharticuse0
- Outcome
- day-time leaf water potentialse7
- Direction
- highere7
- Qualifier
- less negativee7
- Comparator
- - 1400 kPae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of rates of leaf emergence, leaf extension, tiller number, leaf number, leaf area and shoot dry weight per plant following water deficits lasting for between 10 and 28 days was measured in Bromus catharticus in a controlled environment”
e7“This also corresponded to day-time leaf water potentials higher (less negative) than - 1400 kPa”