Abstract
ABSTRACT Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS). At 15 and 23 DAS, we measured dry weight and diurnal variations in photosynthetic rate (P N), stomatal conductance (g s), transpiration rate (T), leaf water potential (ψ L), and water uptake rate (23 DAS only). The reduction in dry weight at 23 DAS caused by water stress was ameliorated by silicon. Under water stress, silicon-treated seedlings showed higher g s, P N, and T than untreated ones. ψ L remained almost constant within treatments throughout the daytime. Water uptake rate was reduced by water stress, but the reduction was ameliorated by silicon. We conclude that silicon enhanced water uptake and g s, improving water supply to the leaves. These effects of silicon occurred soon after exposure to water stress.
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Claims 9
Claim · model-written summary
Silicon ameliorated water-stress reduction in sorghum dry weight at 23 DAS.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in dry weight at 23 DAS caused by water stress was ameliorated by silicon.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
Claim · model-written summary
Silicon-treated seedlings under water stress had higher stomatal conductance than untreated seedlings.
- Treatment
- silicon-treated seedlingse0
- Outcome
- stomatal conductance (g s)e2
- Direction
- highere0
- Comparator
- untreated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under water stress, silicon-treated seedlings showed higher g s, P N, and T than untreated ones.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
e2“stomatal conductance (g s)”
Claim · model-written summary
Silicon-treated seedlings under water stress had higher photosynthetic rate than untreated seedlings.
- Treatment
- silicon-treated seedlingse0
- Outcome
- photosynthetic rate (P N)e2
- Direction
- highere0
- Comparator
- untreated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under water stress, silicon-treated seedlings showed higher g s, P N, and T than untreated ones.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
e2“photosynthetic rate (P N)”
Claim · model-written summary
Silicon-treated seedlings under water stress had higher transpiration rate than untreated seedlings.
- Treatment
- silicon-treated seedlingse0
- Outcome
- transpiration rate (T)e2
- Direction
- highere0
- Comparator
- untreated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under water stress, silicon-treated seedlings showed higher g s, P N, and T than untreated ones.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
e2“transpiration rate (T)”
Claim · model-written summary
Leaf water potential stayed nearly constant through the day within treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ψ L remained almost constant within treatments throughout the daytime.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
e2“leaf water potential (ψ L)”
Claim · model-written summary
Water stress reduced water uptake rate.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water uptake rate was reduced by water stress, but the reduction was ameliorated by silicon.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
Claim · model-written summary
Silicon ameliorated the water-stress reduction in water uptake.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water uptake rate was reduced by water stress, but the reduction was ameliorated by silicon.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
Claim · model-written summary
The authors conclude that silicon increased water uptake and stomatal conductance, improving leaf water supply.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We conclude that silicon enhanced water uptake and g s, improving water supply to the leaves.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
Claim · model-written summary
Silicon effects appeared soon after water-stress exposure.
- Outcome
- These effects of silicon occurred soon after exposure to water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These effects of silicon occurred soon after exposure to water stress.”
e1“Sorghum [Sorghum bicolor (L.) Moench] was grown hydroponically with or without 50 ppm silicon (Si), and exposed to water stress from 10 days after sowing (DAS).”
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See all 25 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.