Abstract
Xinhai 35 and Xinhai 48 varieties were used to study the effects of glycinebetain on photosynthesis, biomass accumulation and the role in the growth and development of sea island cotton seedlings under salt alkali stress, which will provide a reference for the application of glycinebetain in the salt alkali cultivation of island cotton. The concentration of saline alkali was 0, 120, 180, 240 mmol L-1, and the concentration of glycinebetain was 0, 30, 60 mmol L-1. With the increase of saline alkali concentration, island cotton seedling plant height, net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), intercellular CO2 concentration (Ci), plant fresh and dry weight accumulation showed a significant downward trend, but after glycinebetain spraying, the growth, photosynthesis and biomass accumulation of sea island cotton seedlings were improved in different degrees. Under the same saline alkali concentration, the above indices of island cotton seedlings increased first and then decreased with the increase of glycinebetain concentration. Under the same glycinebetain concentration, the promotion degree of each index of island cotton seedlings showed a continuous downward trend with the increase of salinity and alkali concentration. Under 120 mmol L-1 saline-alkali concentration, spraying 30 mmol L-1 glycinebetain had a significant effect on improving the photosynthetic performance, thereby increasing the plant height and biomass accumulation of island cotton seedlings, which was more effective in Xinhai 35 than in Xinhai 48. Therefore, in the cultivation of saline alkali soil (0-120 mmol L-1), foliar application of glycinebetain (30 mmol L-1) can significantly improve the growth and photosynthesis of island cotton.
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Claims 7
Claim · model-written summary
Increasing saline alkali reduced cotton seedling height, photosynthesis, gas exchange, and biomass.
- Taxon
- island cottone0
- Treatment
- saline alkali concentratione0
- Outcome
- plant height, net photosynthetic rate (Pn), transpiration rate (Tr)e0
- Direction
- downward trende0
Not reportedComparator
Verbatim
e0“With the increase of saline alkali concentration, island cotton seedling plant height, net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), intercellular CO2 concentration (Ci), plant fresh and dry weight accumulation showed a significant downward trend”
Claim · model-written summary
Increasing saline alkali reduced stomatal conductance, intercellular CO2, and fresh weight.
- Taxon
- island cottone0
- Treatment
- saline alkali concentratione0
- Outcome
- stomatal conductance (Gs), intercellular CO2 concentration (Ci), plant freshe0
- Direction
- downward trende0
Not reportedComparator
Verbatim
e0“With the increase of saline alkali concentration, island cotton seedling plant height, net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), intercellular CO2 concentration (Ci), plant fresh and dry weight accumulation showed a significant downward trend”
Claim · model-written summary
Glycinebetain spraying improved cotton seedling growth, photosynthesis and biomass.
- Taxon
- sea island cotton
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Gossypium barbadensee0 - Treatment
- glycinebetain sprayinge0
- Outcome
- growth, photosynthesis and biomass accumulatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“after glycinebetain spraying, the growth, photosynthesis and biomass accumulation of sea island cotton seedlings were improved in different degrees”
Claim · model-written summary
At fixed saline alkali concentration, cotton seedling indices rose and then fell with glycinebetain concentration.
Verbatim
e0“Under the same saline alkali concentration, the above indices of island cotton seedlings increased first and then decreased with the increase of glycinebetain concentration”
Claim · model-written summary
At fixed glycinebetain concentration, its promotion of cotton indices declined as saline alkali concentration increased.
Verbatim
e0“Under the same glycinebetain concentration, the promotion degree of each index of island cotton seedlings showed a continuous downward trend with the increase of salinity and alkali concentration”
Claim · model-written summary
At 120 mmol L-1 saline alkali, 30 mmol L-1 glycinebetain improved photosynthetic performance, height and biomass, more in Xinhai 35 than Xinhai 48.
Verbatim
e0“Under 120 mmol L-1 saline-alkali concentration, spraying 30 mmol L-1 glycinebetain had a significant effect on improving the photosynthetic performance, thereby increasing the plant height and biomass accumulation of island cotton seedlings, which was more effective in Xinhai 35 than in Xinhai 48”
Claim · model-written summary
The authors recommend 30 mmol L-1 foliar glycinebetain for cotton on saline alkali soil at 0–120 mmol L-1.
Verbatim
e0“in the cultivation of saline alkali soil (0-120 mmol L-1), foliar application of glycinebetain (30 mmol L-1) can significantly improve the growth and photosynthesis of island cotton”
The same questions in other papers
application · physiology: photosynthesis · Gossypium barbadense (Egyptian cotton)Results agree
1 paper in the same direction as this paper
- positive
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.