Abstract
Responses of four sweetpotato genotypes (`Centennial', `Travis', `Vardaman' and `MS 21-2') to water stress were studied. Two irrigation regimes (irrigation vs non-irrigation) were imposed on five-week old cuttings grown in a greenhouse environment. Transpiration and leaf diffusive resistance (LDR) were measured with a steady state porometer and mid-day total leaf water potentials were determined with a thermocouple psychrometer. Leaf growth was inhibited earlier than root growth. Water stress caused a reduction of leaf size in Centennial and in leaf number in the other three. Storage root number of Vardaman was not inhibited by limited soil moisture but development of storage roots was retarded by water stress. Total growth under non-irrigation of MS 21-2 was inhibited more than Vardaman. Mid-day leaf water potential did not show promise as a good indicator of water status. Genotypic differences in the water stress sensitivity as measured by LDR, were observed.
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Claims 8
Claim · model-written summary
Leaf growth was inhibited earlier than root growth under water stress.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Treatment
- water stresse1
- Outcome
- Leaf growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Leaf growth was inhibited earlier than root growth.”
e1“Responses of four sweetpotato genotypes (`Centennial', `Travis', `Vardaman' and `MS 21-2') to water stress were studied.”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Water stress reduced leaf size in Centennial.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Material
- Centenniale0
- Treatment
- Water stresse0
- Outcome
- leaf sizee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Water stress caused a reduction of leaf size in Centennial”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Water stress reduced leaf number in Travis, Vardaman and MS 21-2.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Material
- `Travis', `Vardaman' and `MS 21-2'e1
- Treatment
- Water stresse0
- Outcome
- leaf numbere0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Water stress caused a reduction of leaf size in Centennial and in leaf number in the other three.”
e1“`Travis', `Vardaman' and `MS 21-2'”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Limited soil moisture did not inhibit storage root number in Vardaman.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Material
- Vardamane0
- Treatment
- limited soil moisturee0
- Outcome
- Storage root numbere0
- Direction
- not inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Storage root number of Vardaman was not inhibited by limited soil moisture”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Water stress retarded storage root development.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Treatment
- water stresse0
- Outcome
- development of storage rootse0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“development of storage roots was retarded by water stress”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Under non-irrigation, total growth of MS 21-2 was inhibited more than Vardaman.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Material
- MS 21-2e0
- Treatment
- non-irrigatione0
- Outcome
- Total growthe0
- Direction
- inhibited moree0
- Comparator
- Vardamane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Total growth under non-irrigation of MS 21-2 was inhibited more than Vardaman”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
Mid-day leaf water potential did not show promise as a water-status indicator.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Outcome
- indicator of water statuse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Mid-day leaf water potential did not show promise as a good indicator of water status”
t0“SWEETPOTATO GENOTYPES”
Claim · model-written summary
LDR measurements showed genotypic differences in water-stress sensitivity.
- Taxon
- SWEETPOTATO
Ipomoea batatast0 - Outcome
- Genotypic differences in the water stress sensitivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Genotypic differences in the water stress sensitivity as measured by LDR, were observed”
t0“SWEETPOTATO GENOTYPES”
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