Abstract
The experiment was carried out from 2011 to 2013,to study the effects of waterlogging on grain yield in wheat and the effect of spraying 6-BA before waterlogging.The results were shown as follows.The precipitation was enough during grain filling both during 2011-2012 and 2012-2013 in Jianghan Plain.The accumulated rainfall was 194.1 mm from April to May 31 in 2012,and 285.5 mm in 2013,respectively.The above data indicated that there was great risk of waterlogging in wheat. The experimental research indicated that after waterlogging from anthesis to 7dafter anthesis,the plant of wheat aged more quickly,and leaves turned yellow seriously.Spraying 6-BA before waterlogging slowed down the course of senescence.Waterlogging after anthesis decreased photosynthetic rate in flag leaf and spraying 6-BA slowed down the decrease of photosynthetic rate but its photosynthetic rate was still less than that of CK.Waterlogging decreased root activity as well.The root activity of waterlogging treatment was 56.3percent of CK,and the activity of root from 6-BA+waterlogging treatment was 62.9percent of CK at grain filling stage,which means spraying 6-BA delayed senescence in root.Finally,the treatment of 6-BA + waterlogging improved 7.7percent in biomass and 13.7percent in grain yield,respectively.All of the above,under this experimental condition,the waterlogging from anthesis to anthesis of 7dlater decreased photosynthetic rate in flag leaf,root activity,biomass and grain yield,spraying 6-BA before waterlogging could decrease the effects of waterlogging,improving grain yield filling after waterlogging.As estimated from the data of grain yield during 2011-2012 and 2012-2013,grain yield increased about42.7kg per 666.7m2,which means about one-third of the field was free from waterlogging.
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Claims 16
Claim · model-written summary
Precipitation during grain filling was sufficient in both 2011-2012 and 2012-2013 in Jianghan Plain.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- precipitation was enough during grain fillinge0
- Setting
- Jianghan Plaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“The precipitation was enough during grain filling both during 2011-2012 and 2012-2013 in Jianghan Plain”
Claim · model-written summary
Accumulated rainfall from April to May 31 in 2012 was 194.1 mm.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- accumulated rainfalle0
- Value
- 194.1 mme0
- Qualifier
- from April to May 31 in 2012e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“The accumulated rainfall was 194.1 mm from April to May 31 in 2012”
Claim · model-written summary
Accumulated rainfall in 2013 was 285.5 mm.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- accumulated rainfalle0
- Value
- 285.5 mme0
- Qualifier
- in 2013e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“The accumulated rainfall was 194.1 mm from April to May 31 in 2012,and 285.5 mm in 2013”
Claim · model-written summary
The rainfall data indicated a great risk of waterlogging in wheat.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- great risk of waterlogginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“The above data indicated that there was great risk of waterlogging in wheat”
Claim · model-written summary
Waterlogging from anthesis to 7 days after anthesis made wheat plants age more quickly.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- waterlogging from anthesis to 7dafter anthesise0
- Outcome
- the plant of wheat aged more quicklye0
- Direction
- more quicklye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“after waterlogging from anthesis to 7dafter anthesis,the plant of wheat aged more quickly,and leaves turned yellow seriously”
Claim · model-written summary
Waterlogging from anthesis to 7 days after anthesis made wheat leaves turn yellow seriously.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- waterlogging from anthesis to 7dafter anthesise0
- Outcome
- leaves turned yellow seriouslye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“after waterlogging from anthesis to 7dafter anthesis,the plant of wheat aged more quickly,and leaves turned yellow seriously”
Claim · model-written summary
Spraying 6-BA before waterlogging slowed the course of senescence.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Spraying 6-BA before waterlogginge0
- Outcome
- course of senescencee0
- Direction
- slowed downe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“Spraying 6-BA before waterlogging slowed down the course of senescence”
Claim · model-written summary
Waterlogging after anthesis decreased photosynthetic rate in the flag leaf of wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- flag leafe0
- Treatment
- Waterlogging after anthesise0
- Outcome
- photosynthetic ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“Waterlogging after anthesis decreased photosynthetic rate in flag leaf”
Claim · model-written summary
Spraying 6-BA slowed the decrease of photosynthetic rate under waterlogging, but it remained below that of the control (CK).
- Taxon
- wheatTriticum aestivumt0
- Treatment
- spraying 6-BAe0
- Outcome
- photosynthetic ratee0
- Direction
- slowed down the decreasee0
- Qualifier
- still less than that of CKe0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“spraying 6-BA slowed down the decrease of photosynthetic rate but its photosynthetic rate was still less than that of CK”
Claim · model-written summary
Waterlogging decreased root activity to 56.3 percent of the control (CK).
- Taxon
- wheatTriticum aestivumt0
- Treatment
- waterlogging treatmente0
- Outcome
- root activitye0
- Direction
- decreasede0
- Value
- 56.3percente0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“Waterlogging decreased root activity as well.The root activity of waterlogging treatment was 56.3percent of CK”
Claim · model-written summary
Root activity in the 6-BA + waterlogging treatment was 62.9 percent of CK at the grain filling stage.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- grain filling stagee0
- Treatment
- 6-BA+waterlogging treatmente0
- Outcome
- activity of roote0
- Direction
- lowerinferrede0
- Value
- 62.9percente0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“the activity of root from 6-BA+waterlogging treatment was 62.9percent of CK at grain filling stage,which means spraying 6-BA delayed senescence in root”
Claim · model-written summary
Spraying 6-BA delayed senescence in the root.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- spraying 6-BAe0
- Outcome
- senescence in roote0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“the activity of root from 6-BA+waterlogging treatment was 62.9percent of CK at grain filling stage,which means spraying 6-BA delayed senescence in root”
Claim · model-written summary
The 6-BA + waterlogging treatment improved biomass by 7.7 percent.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 6-BA + waterlogginge0
- Outcome
- biomasse0
- Direction
- improvede0
- Value
- 7.7percente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“the treatment of 6-BA + waterlogging improved 7.7percent in biomass”
Claim · model-written summary
The 6-BA + waterlogging treatment improved grain yield by 13.7 percent.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 6-BA + waterlogginge0
- Outcome
- grain yielde0
- Direction
- improvede0
- Value
- 13.7percente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“the treatment of 6-BA + waterlogging improved 7.7percent in biomass and 13.7percent in grain yield”
Claim · model-written summary
Waterlogging from anthesis for 7 days decreased biomass and grain yield.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- waterlogging from anthesis to anthesis of 7dlatere0
- Outcome
- biomass and grain yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“the waterlogging from anthesis to anthesis of 7dlater decreased photosynthetic rate in flag leaf,root activity,biomass and grain yield”
Claim · model-written summary
Estimated from the two seasons, grain yield increased by about 42.7 kg per 666.7 m2.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- about42.7kg per 666.7m2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN WHEAT”
e0“grain yield increased about42.7kg per 666.7m2”
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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.