Abstract
Young seedlings of 22 Sorghum cultivars including sorghum, sudangrass and sorghum-sudangrass hybrids, were examined for their growth characteristics and sodium ion accumulation in different plant parts, under salt treatment. The salt treatment was started with 100 mM NaCl and increased to 150 mM during the experiment. The plant dry weight decreased under NaCl treatment in all cultivars, and especially the dry weight of leaf blade decreased markedly. The cultivar difference in the plant dry weight under salt stress was affected by that in relative growth rate which was mainly changed by net assimilation rate (NAR). Cultivars that maintained higher NAR under salt stress had a smaller specific leaf area and higher nitrogen content per unit leaf area. Sorghum plants under salt stress retained Na+ mainly in roots preventing the distribution of excess amount of Na+ to leaves, but the root dry weight was increased by salt stress. It was therefore considered that thicker leaf blades and apparent increases in root dry weight were the main contributors to the maintenance of dry matter yield and enhanced the growth of Sorghum cultivars under NaCl treatment.
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Claims 8
Claim · model-written summary
NaCl reduced plant dry weight in all cultivars.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant dry weight decreased under NaCl treatment in all cultivars”
t0“Sorghum”
Claim · model-written summary
NaCl markedly reduced leaf blade dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially the dry weight of leaf blade decreased markedly”
e1“under NaCl treatment in all cultivars”
t0“Sorghum”
Claim · model-written summary
Cultivar differences in dry weight under salt stress reflected relative growth rate differences driven mainly by net assimilation rate.
- Material
- cultivare0
- Outcome
- plant dry weight under salt stresse0
- Qualifier
- relative growth rate which was mainly changed by net assimilation rate (NAR)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar difference in the plant dry weight under salt stress was affected by that in relative growth rate which was mainly changed by net assimilation rate (NAR).”
t0“Sorghum”
Claim · model-written summary
Cultivars maintaining higher NAR under salt stress had smaller specific leaf area.
- Material
- Cultivarse0
- Outcome
- specific leaf areae0
- Direction
- smallere0
- Qualifier
- higher NAR under salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars that maintained higher NAR under salt stress had a smaller specific leaf area”
t0“Sorghum”
Claim · model-written summary
Cultivars maintaining higher NAR under salt stress had higher nitrogen per unit leaf area.
- Material
- Cultivarse0
- Outcome
- nitrogen content per unit leaf areae0
- Direction
- highere0
- Qualifier
- higher NAR under salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars that maintained higher NAR under salt stress had a smaller specific leaf area and higher nitrogen content per unit leaf area”
t0“Sorghum”
Claim · model-written summary
Salt-stressed sorghum retained sodium primarily in roots, limiting delivery to leaves.
- Organ / stage
- rootse0
- Outcome
- retained Na+ mainly in rootse0
- Qualifier
- preventing the distribution of excess amount of Na+ to leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum plants under salt stress retained Na+ mainly in roots preventing the distribution of excess amount of Na+ to leaves”
Claim · model-written summary
Salt stress increased sorghum root dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root dry weight was increased by salt stress”
t0“Sorghum”
Claim · model-written summary
The authors considered thicker leaf blades and greater root dry weight contributors to maintained dry matter yield and enhanced growth under salt.
- Organ / stage
- leaf bladese0
- Outcome
- maintenance of dry matter yield and enhanced the growthe0
- Qualifier
- apparent increases in root dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thicker leaf blades and apparent increases in root dry weight were the main contributors to the maintenance of dry matter yield and enhanced the growth of Sorghum cultivars under NaCl treatment”
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See all 89 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.