Abstract
The leaf area growth of field beans grown under covers in the field was measured non-destructively on plants subjected to three different degrees of soil water stress by means of drying cycles of different lengths in 1974 and 1975. After a period of 46 days the total leaf area of the well-watered plants was about double that of the non-watered ones. The total leaf area at the final-sampling and the mean plant water potential during the observation period were linearly related with highly significant correlation coefficients (0·96 in 1974 and 0·86 in 1975). The differences between treatments in total leaf area were mainly produced by the mechanisms determining leaf size rather than those associated with leaf production and maintenance, namely leaf production, unfolding and death. In neither year was leaf production or unfolding sensitive to water stress before flowering. Plant water potential (ψ) exerted a cumulative long term effect on these two mechanisms. The threshold values of ψ for reducing the rates of leaf production and unfolding were more negative in the drier year (1975). Leaf death was affected by drought earlier than leaf production and unfolding.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Well-watered plants had about twice the total leaf area of non-watered plants after 46 days.
- Taxon
- Field Beans (Vicia faba L.)
Vicia fabat0 - Treatment
- well-watered plantse0
- Outcome
- total leaf areae0
- Direction
- doublee0
- Value
- about doublee0
- Qualifier
- After a period of 46 dayse0
- Comparator
- non-watered onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After a period of 46 days the total leaf area of the well-watered plants was about double that of the non-watered ones.”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Final total leaf area was linearly related to mean plant water potential, with correlations of 0·96 and 0·86 in 1974 and 1975.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Outcome
- total leaf areae0
- Value
- 0·96 in 1974 and 0·86 in 1975e0
- Comparator
- mean plant water potentiale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total leaf area at the final-sampling and the mean plant water potential during the observation period were linearly related with highly significant correlation coefficients (0·96 in 1974 and 0·86 in 1975).”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Treatment differences in total leaf area were mainly attributed to leaf size rather than leaf production and maintenance.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Organ / stage
- leafe0
- Outcome
- total leaf areae0
- Qualifier
- mechanisms determining leaf sizee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The differences between treatments in total leaf area were mainly produced by the mechanisms determining leaf size rather than those associated with leaf production and maintenance, namely leaf production, unfolding and death.”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Before flowering, leaf production was insensitive to water stress in both years.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Organ / stage
- before floweringe0
- Treatment
- water stresse0
- Outcome
- leaf productione0
- Direction
- In neither yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In neither year was leaf production or unfolding sensitive to water stress before flowering.”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Before flowering, leaf unfolding was insensitive to water stress in both years.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Organ / stage
- before floweringe0
- Treatment
- water stresse0
- Outcome
- unfoldinge0
- Direction
- In neither yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In neither year was leaf production or unfolding sensitive to water stress before flowering.”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Plant water potential had a cumulative long-term effect on leaf production and unfolding.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Outcome
- these two mechanismse0
- Qualifier
- cumulative long term effecte0
- Comparator
- Plant water potential (ψ)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant water potential (ψ) exerted a cumulative long term effect on these two mechanisms.”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
The water-potential thresholds reducing leaf production and unfolding were more negative in the drier 1975 year.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Outcome
- rates of leaf production and unfoldinge0
- Direction
- more negativee0
- Comparator
- drier year (1975)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The threshold values of ψ for reducing the rates of leaf production and unfolding were more negative in the drier year (1975).”
t0“Field Beans (Vicia faba L.)”
Claim · model-written summary
Drought affected leaf death earlier than leaf production and unfolding.
- Taxon
- Field Beans (Vicia faba L.)Vicia fabat0
- Treatment
- droughte0
- Outcome
- Leaf deathe0
- Direction
- earliere0
- Comparator
- leaf production and unfoldinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf death was affected by drought earlier than leaf production and unfolding.”
t0“Field Beans (Vicia faba L.)”
The same questions in other papers
drought · yield · Vicia faba (faba bean)Results differ
32 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- positive
36 papers more in this group
See all 40 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.