Abstract
Waterlogging stress is one of the limiting factors influencing wheat ( Triticum aestivum L.) production, especially in the lower Mississippi valley. A rain‐shelter experiment was designed to evaluate the trend response of nine wheat genotypes to four levels of waterlogging treatment: 0, 10, 20, and 30 d of flooding. Genotypes planted in polyvinilchloride (PVC) containers 25 cm long by 10 cm in diameter were waterlogged in plastic tanks under controlled rain conditions. Results indicated significant linear responses for kernels per head and tillers per plant, significant linear and quadratic responses for yield and chlorophyll content, and significant linear and cubic responses for plant height. The linear trend was the most important component, explaining from 92 to 99% of the variability due to waterlogging. Linear prediction equations were obtained to describe the relationship between different traits and waterlogging stress. Losses in yield and yield components were evaluated in a field experiment with 15 genotypes under control and waterlogging treatment. Average yield losses of 44% were mainly caused by a decrease in tiller number and kernels per head. Under waterlogging treatment, tiller number and kernels per head were reduced by 41 and 20%, respectively. Screening of wheat genotypes revealed the potential for waterlogging tolerance in breeding material and identified tolerant cultivars useful for waterlogged environments. ‘Terral LA 422’, ‘Shelby’, and ‘Pioneer 2691’ were the most adapted genotypes for waterlogging treatments. Because of a significant interaction with waterlogging treatment, some of the high‐yielding genotypes under non‐flooded conditions such as ‘Coker 9663’ and ‘FFR 502W’ showed low tolerance to waterlogging. The results provided information on the methods quantifying losses from waterlogging and identified selection criteria for waterlogging tolerance in wheat.
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Claims 13
Claim · model-written summary
Kernels per head and tillers per plant had significant linear responses to waterlogging.
- Taxon
- wheat
Triticum aestivume2 - Treatment
- waterlogging stresse1
- Outcome
- kernels per head and tillers per plante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated significant linear responses for kernels per head and tillers per plant”
e1“waterlogging stress”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Yield and chlorophyll content had significant linear and quadratic responses.
- Taxon
- wheatTriticum aestivume2
- Treatment
- waterlogging stresse1
- Outcome
- yield and chlorophyll contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant linear and quadratic responses for yield and chlorophyll content”
e1“waterlogging stress”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Plant height had significant linear and cubic responses.
- Taxon
- wheatTriticum aestivume2
- Treatment
- waterlogging stresse1
- Outcome
- plant heighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant linear and cubic responses for plant height”
e1“waterlogging stress”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
The linear trend explained 92 to 99% of waterlogging related variability.
- Taxon
- wheatTriticum aestivume1
- Treatment
- waterlogginge0
- Outcome
- variability due to waterlogginge0
- Value
- 92 to 99%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The linear trend was the most important component, explaining from 92 to 99% of the variability due to waterlogging”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Linear prediction equations described trait relationships with waterlogging.
- Taxon
- wheatTriticum aestivume1
- Outcome
- relationship between different traits and waterlogging stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Linear prediction equations were obtained to describe the relationship between different traits and waterlogging stress”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Field waterlogging caused average yield losses of 44%.
- Taxon
- wheatTriticum aestivume2
- Treatment
- waterlogging treatmente1
- Outcome
- yield lossese0
- Direction
- lossese0
- Value
- 44%e0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yield losses of 44% were mainly caused by a decrease in tiller number and kernels per head”
e1“under control and waterlogging treatment”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Waterlogging reduced tiller number by 41%.
- Taxon
- wheatTriticum aestivume2
- Treatment
- waterlogging treatmente0
- Outcome
- tiller numbere0
- Direction
- reducede0
- Value
- 41 and 20%e0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under waterlogging treatment, tiller number and kernels per head were reduced by 41 and 20%, respectively”
e1“under control and waterlogging treatment”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Waterlogging reduced kernels per head by 20%.
- Taxon
- wheatTriticum aestivume2
- Treatment
- waterlogging treatmente0
- Outcome
- kernels per heade0
- Direction
- reducede0
- Value
- 20%e0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under waterlogging treatment, tiller number and kernels per head were reduced by 41 and 20%, respectively”
e1“under control and waterlogging treatment”
e2“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Terral LA 422 was among the most adapted genotypes for waterlogging.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Terral LA 422’e0
- Outcome
- most adapted genotypese0
- Direction
- most adaptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Terral LA 422’, ‘Shelby’, and ‘Pioneer 2691’ were the most adapted genotypes for waterlogging treatments”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Shelby was among the most adapted genotypes for waterlogging.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Shelby’e0
- Outcome
- most adapted genotypese0
- Direction
- most adaptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Terral LA 422’, ‘Shelby’, and ‘Pioneer 2691’ were the most adapted genotypes for waterlogging treatments”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Pioneer 2691 was among the most adapted genotypes for waterlogging.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Pioneer 2691’e0
- Outcome
- most adapted genotypese0
- Direction
- most adaptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Terral LA 422’, ‘Shelby’, and ‘Pioneer 2691’ were the most adapted genotypes for waterlogging treatments”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Coker 9663 had low waterlogging tolerance despite high yield without flooding.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Coker 9663’e0
- Outcome
- low tolerance to waterlogginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high‐yielding genotypes under non‐flooded conditions such as ‘Coker 9663’ and ‘FFR 502W’ showed low tolerance to waterlogging”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
FFR 502W had low waterlogging tolerance despite high yield without flooding.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘FFR 502W’e0
- Outcome
- low tolerance to waterlogginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high‐yielding genotypes under non‐flooded conditions such as ‘Coker 9663’ and ‘FFR 502W’ showed low tolerance to waterlogging”
e1“wheat ( Triticum aestivum L.)”
The same questions in other papers
flooding · yield · Triticum aestivum (wheat)Positive and negative results
84 papers in the same direction as this paper · 17 in the opposite direction
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