Abstract
Cotton ( Gossypium hirsutum L. ‘Coker 315’), spurred anoda [ Anoda cristata (L.) Schlecht. # ANVCR], and velvetleaf ( Abutilon theophrasti Medik. # ABUTH) were grown in controlled-environment chambers at 29/23 C day/night temperature and 1000 μE·m –2 ·s –1 photosynthetic photon flux density (PPFD). Groups of plants were subjected to water stress by withholding water for 8 days, beginning at 27 days after planting. Cotton reached a lower leaf water potential than spurred anoda and velvetleaf following 8 days of withholding water. Following the drought, plants were rewatered for a 6-day recovery period. Water stress reduced plant height, leaf number, leaf area, total dry weight, stomatal conductance, transpiration, net assimilation rate, and leaf area duration in all species, in comparison with well-watered controls. Water stress decreased partitioning of plant biomass into leaves and increased partitioning into roots. Following rewatering, stomatal conductance and transpiration rates of previously stressed plants recovered to control levels within 28 h. Net assimilation rates of previously stressed spurred anoda also recovered to control levels. After 6 days of recovery, total dry weights and leaf areas of previously stressed plants of all three species remained below those of control plants. The overall effect of the drought and water stress was to delay the time at which spurred anoda and velvetleaf equaled or surpassed cotton in dry weight and leaf area, suggesting that drought early in the growing season under field conditions might increase the competitiveness of cotton relative to the two weeds.
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Claims 10
Claim · model-written summary
Cotton reached a lower leaf water potential than the two weeds after eight days without water.
- Taxon
- Cotton
Gossypium hirsutume0 - Treatment
- withholding watere0
- Outcome
- leaf water potentiale0
- Direction
- lowere0
- Value
- 8 dayse0
- Comparator
- spurred anoda and velvetleafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton reached a lower leaf water potential than spurred anoda and velvetleaf following 8 days of withholding water.”
Claim · model-written summary
Water stress reduced plant height, leaf number, and leaf area in all three species.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)
Abutilon theophrastiGossypium hirsutum.jpg?width=60)
Anoda cristatat0 - Treatment
- Water stresse0
- Outcome
- plant height, leaf number, leaf areae0
- Direction
- reducede0
- Comparator
- well-watered controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Water stress reduced plant height, leaf number, leaf area, total dry weight, stomatal conductance, transpiration, net assimilation rate, and leaf area duration in all species, in comparison with well-watered controls.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Water stress reduced total dry weight, stomatal conductance, and transpiration in all species.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Treatment
- Water stresse0
- Outcome
- total dry weight, stomatal conductance, transpiratione0
- Direction
- reducede0
- Comparator
- well-watered controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced plant height, leaf number, leaf area, total dry weight, stomatal conductance, transpiration, net assimilation rate, and leaf area duration in all species, in comparison with well-watered controls.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Water stress reduced net assimilation rate and leaf area duration in all species.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Treatment
- Water stresse0
- Outcome
- net assimilation rate, and leaf area duratione0
- Direction
- reducede0
- Comparator
- well-watered controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced plant height, leaf number, leaf area, total dry weight, stomatal conductance, transpiration, net assimilation rate, and leaf area duration in all species, in comparison with well-watered controls.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Water stress decreased biomass allocation to leaves.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Treatment
- Water stresse0
- Outcome
- partitioning of plant biomass into leavese0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress decreased partitioning of plant biomass into leaves”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Water stress increased biomass allocation to roots.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Outcome
- partitioning into rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased partitioning into roots.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Stomatal conductance and transpiration recovered to control levels within 28 hours of rewatering.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Outcome
- stomatal conductance and transpiration ratese0
- Direction
- recovered to control levelse0
- Value
- 28 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal conductance and transpiration rates of previously stressed plants recovered to control levels within 28 h.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Net assimilation of spurred anoda recovered to control levels after rewatering.
Verbatim
e0“Net assimilation rates of previously stressed spurred anoda also recovered to control levels.”
Claim · model-written summary
Dry weight and leaf area remained below controls after six days of recovery for all species.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Outcome
- total dry weights and leaf arease0
- Direction
- remained belowe0
- Value
- 6 dayse0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 6 days of recovery, total dry weights and leaf areas of previously stressed plants of all three species remained below those of control plants.”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
Claim · model-written summary
Drought delayed when spurred anoda and velvetleaf equaled or surpassed cotton in dry weight and leaf area.
- Taxon
- Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)Abutilon theophrastiGossypium hirsutumAnoda cristatat0
- Outcome
- time at which spurred anoda and velvetleaf equaled or surpassed cotton in dry weight and leaf areae0
- Direction
- delaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“delay the time at which spurred anoda and velvetleaf equaled or surpassed cotton in dry weight and leaf area”
t0“Cotton (Gossypium hirsutum), Spurred Anoda (Anoda cristata), and Velvetleaf (Abutilon theophrasti)”
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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.