Abstract
Salinity and alkalinity stress are two major constraints on plant growth and crop production, limiting sustainable agricultural production. Wheat is a vital cereal crop. It is very important to ensure food security; however, its growth and yield are usually adversely affected by salinity and alkalinity stress. To investigate the differential effects of neutral and alkaline salt stress on the seedling growth of wheat, we set wheat hydroponic culture experiment: CK, neutral salt (NaCl:Na2SO4 = 9:1 pH = 6.5), neutral salt with high pH value (NaCl:Na2SO4 = 9:1 pH = 8.9), alkaline salt (NaHCO3:Na2CO3 = 9:1 pH = 8.9), all treatments at the same Na+ concentration. The results indicated alkaline salt inhibited seedling growth more than neutral salt and neutral salt with high pH value. The results showed that the salt and alkali stresses decreased chlorophyll contents in leaves of wheat seedlings, inhibited photosynthesis and induced osmotic stress, oxidative stress and ion toxicity to wheat seedlings and finally inhibited the growth of wheat seedlings, while the alkaline salt caused a stronger injurious effect on wheat seedlings than the neutral salt, neutral salt with high pH value. Our study results demonstrated that alkaline salt inhibited wheat seedlings more significantly than neutral salt and neutral salt with high pH value. And, the main factor affected seedling growth is not pH alone.
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Claims 7
Claim · model-written summary
Alkaline salt inhibited wheat seedling growth more than neutral salt and neutral salt with high pH.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- alkaline salte0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
- Comparator
- neutral salt and neutral salt with high pH valuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e0“alkaline salt inhibited seedling growth more than neutral salt and neutral salt with high pH value”
Claim · model-written summary
Salt and alkali stresses decreased chlorophyll contents in wheat seedling leaves.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leaves of wheat seedlingse1
- Treatment
- salt and alkali stressese1
- Outcome
- chlorophyll contentse1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e1“the salt and alkali stresses decreased chlorophyll contents in leaves of wheat seedlings”
Claim · model-written summary
Salt and alkali stresses inhibited photosynthesis in wheat seedlings.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- salt and alkali stressese1
- Outcome
- photosynthesise2
- Direction
- inhibitede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e1“the salt and alkali stresses decreased chlorophyll contents in leaves of wheat seedlings”
e2“inhibited photosynthesis and induced osmotic stress, oxidative stress and ion toxicity to wheat seedlings”
Claim · model-written summary
Salt and alkali stresses induced osmotic stress, oxidative stress and ion toxicity in wheat seedlings.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- salt and alkali stressese1
- Outcome
- osmotic stress, oxidative stress and ion toxicitye2
- Direction
- inducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e1“the salt and alkali stresses decreased chlorophyll contents in leaves of wheat seedlings”
e2“inhibited photosynthesis and induced osmotic stress, oxidative stress and ion toxicity to wheat seedlings”
Claim · model-written summary
Salt and alkali stresses finally inhibited the growth of wheat seedlings.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- salt and alkali stressese1
- Outcome
- growth of wheat seedlingse3
- Direction
- inhibitede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e1“the salt and alkali stresses decreased chlorophyll contents in leaves of wheat seedlings”
e3“finally inhibited the growth of wheat seedlings”
Claim · model-written summary
Alkaline salt caused a stronger injurious effect on wheat seedlings than neutral salt and neutral salt with high pH.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- alkaline salte4
- Outcome
- injurious effecte4
- Direction
- strongere4
- Comparator
- neutral salt, neutral salt with high pH valuee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e4“the alkaline salt caused a stronger injurious effect on wheat seedlings than the neutral salt, neutral salt with high pH value”
Claim · model-written summary
The main factor affecting wheat seedling growth is not pH alone.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- seedling growthe5
- Qualifier
- the main factor affected seedling growth is not pH alonee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Case Study with Wheat (Triticum aestivum L.) Seedlings”
e5“the main factor affected seedling growth is not pH alone”
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