Abstract
Wheat is one of main grain crop,the harm of weeds on wheat production development is one of the important factors.Trial used a randomized block design,before and after applying in wheat jointing 5 concentrations of herbicide Puma(25,50,100,150,300 g per 667 m2) after spraying,determination of wheat leaf net photosynthetic rate(Pn),stomatal conductance(Gs),intercellular CO2 concentration(Ci),transpiration rate(Tr) indicators,designed for safety application of herbicides in wheat field to provide the theory basis and the technical support.The results showed that: before spraying after jointing,Puma,in wheat flag leaf stage pour two leaf transpiration rate with spray dose increased decreased,while heading stage and grain filling period is decreased with rising trend.In flagging stage,fall two leaf water use efficiency rise,heading stage and then decreased,while in the period of grain filling,pour two leaf water use efficiency decreased,as the Puma concentration increases and wheat growth period after pushing two,the wheat leaf water use efficiency was reduced gradually,and after jointing stage spraying water use efficiency was significantly lower jointing the front spraying.
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Claims 6
Claim · model-written summary
Before jointing, greater Puma dose reduced transpiration of the second leaf below the flag leaf at flag-leaf stage.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- flag leaf stage pour two leafe0
- Treatment
- Pumae1
- Outcome
- transpiration ratee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in wheat flag leaf stage pour two leaf transpiration rate with spray dose increased decreased”
e1“while in the period of grain filling,pour two leaf water use efficiency decreased,as the Puma concentration increases”
Claim · model-written summary
At heading and grain filling, transpiration decreased and then rose as spray dose increased.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- heading stage and grain filling periode0
- Treatment
- Pumae1
- Outcome
- transpiration ratee2
- Direction
- decreased with rising trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“while heading stage and grain filling period is decreased with rising trend”
e1“while in the period of grain filling,pour two leaf water use efficiency decreased,as the Puma concentration increases”
e2“in wheat flag leaf stage pour two leaf transpiration rate with spray dose increased decreased”
Claim · model-written summary
Water use efficiency of the second leaf below the flag leaf rose at flagging and then fell at heading.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- fall two leafe0
- Outcome
- water use efficiencye0
- Direction
- risee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“In flagging stage,fall two leaf water use efficiency rise,heading stage and then decreased”
Claim · model-written summary
At grain filling, second-leaf water use efficiency fell as Puma concentration increased.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- pour two leafe0
- Treatment
- Pumae0
- Outcome
- water use efficiencye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“while in the period of grain filling,pour two leaf water use efficiency decreased,as the Puma concentration increases”
Claim · model-written summary
Water use efficiency declined as wheat growth progressed.
- Taxon
- wheatTriticum aestivume0
- Outcome
- water use efficiencye0
- Direction
- reduced graduallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as the Puma concentration increases and wheat growth period after pushing two,the wheat leaf water use efficiency was reduced gradually”
Claim · model-written summary
Spraying after jointing yielded significantly lower water use efficiency than spraying before jointing.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- after jointing stage sprayinge0
- Outcome
- water use efficiencye0
- Direction
- lowere0
- Comparator
- jointing the front sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“after jointing stage spraying water use efficiency was significantly lower jointing the front spraying”
The same questions in other papers
application · physiology: water · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 49 in the opposite direction
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