Abstract
The current widely used grain sorghum hybrid Liaoza No.10was chosen as test materials.The effect of different concentrations herbicides of Atrazine,Metolachlor,2,4-D Butyl ester,Acetochlor and their compounds on the emergence,photosynthetic rate and dry matter accumulation were compared and analyzed.The results showed that for the preemergence treatment,when the concentration of Atrazine,Metolachlor,2,4-D Butyl ester,and Acetochlor are lower than 6 750,1 050,900and 750mL/hm2 individually using preemergence treatment,there are less impact on sorghum emergence and good effect of weeding.At 5-leaf stage,complex combination of X15with Atrazine,Acetochlor and 2,4-D Butyl ester(3 750mL/hm2+600mL/hm2+750mL/hm2),and complex combination of Atrazine,2,4-D Butyl ester and Metolachlor of X20(4 500mL/hm2+975mL/hm2+675mL/hm2)could ensure high emergence rate,relatively low seedling damage and has advantages over a single herbicide.For the postemergence treatment,recommended herbicide applying time is after the 5-leaf stage if it is under the premise of weeds controllable.The sensitivity of seedlings to each herbicide under the designed dosage in this study is:Acetochlor(Atrazine+2,4-D Butyl ester+ Acetochlor)(Atrazine+2,4-D Butyl ester+ Metolachlor) Metolachlor 2,4-D Butyl ester Atrazine.The decline of net photosynthetic rate is the important reason for the higher seedling damage rate,it also causes the opposite trend between dry matter accumulation and sensitivity of seedlings to herbicide.
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Claims 10
Claim · model-written summary
Atrazine below the stated dose had little impact on sorghum emergence and good weeding effect.
- Treatment
- Atrazinee0
- Outcome
- sorghum emergence and good effect of weedinge0
- Direction
- less impacte0
- Qualifier
- preemergence treatmente0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“when the concentration of Atrazine,Metolachlor,2,4-D Butyl ester,and Acetochlor are lower than 6 750,1 050,900and 750mL/hm2 individually using preemergence treatment,there are less impact on sorghum emergence and good effect of weeding”
Claim · model-written summary
Metolachlor below the stated dose had little impact on sorghum emergence and good weeding effect.
- Treatment
- Metolachlore0
- Outcome
- sorghum emergence and good effect of weedinge0
- Direction
- less impacte0
- Qualifier
- preemergence treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“when the concentration of Atrazine,Metolachlor,2,4-D Butyl ester,and Acetochlor are lower than 6 750,1 050,900and 750mL/hm2 individually using preemergence treatment,there are less impact on sorghum emergence and good effect of weeding”
Claim · model-written summary
2,4-D Butyl ester below the stated dose had little impact on sorghum emergence and good weeding effect.
- Treatment
- 2,4-D Butyl estere0
- Outcome
- sorghum emergence and good effect of weedinge0
- Direction
- less impacte0
- Qualifier
- preemergence treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“when the concentration of Atrazine,Metolachlor,2,4-D Butyl ester,and Acetochlor are lower than 6 750,1 050,900and 750mL/hm2 individually using preemergence treatment,there are less impact on sorghum emergence and good effect of weeding”
Claim · model-written summary
Acetochlor below the stated dose had little impact on sorghum emergence and good weeding effect.
- Treatment
- Acetochlore0
- Outcome
- sorghum emergence and good effect of weedinge0
- Direction
- less impacte0
- Qualifier
- preemergence treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“when the concentration of Atrazine,Metolachlor,2,4-D Butyl ester,and Acetochlor are lower than 6 750,1 050,900and 750mL/hm2 individually using preemergence treatment,there are less impact on sorghum emergence and good effect of weeding”
Claim · model-written summary
X15 combination preserved high emergence and low seedling damage and exceeded single herbicides.
- Treatment
- X15with Atrazine,Acetochlor and 2,4-D Butyl ester(3 750mL/hm2+600mL/hm2+750mL/hm2)e0
- Outcome
- high emergence rate,relatively low seedling damagee0
- Direction
- highe0
- Comparator
- a single herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“complex combination of X15with Atrazine,Acetochlor and 2,4-D Butyl ester(3 750mL/hm2+600mL/hm2+750mL/hm2),and complex combination of Atrazine,2,4-D Butyl ester and Metolachlor of X20(4 500mL/hm2+975mL/hm2+675mL/hm2)could ensure high emergence rate,relatively low seedling damage and has advantages over a single herbicide”
Claim · model-written summary
X20 combination preserved high emergence and low seedling damage and exceeded single herbicides.
- Treatment
- Atrazine,2,4-D Butyl ester and Metolachlor of X20(4 500mL/hm2+975mL/hm2+675mL/hm2)e0
- Outcome
- high emergence rate,relatively low seedling damagee0
- Direction
- highe0
- Comparator
- a single herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“complex combination of X15with Atrazine,Acetochlor and 2,4-D Butyl ester(3 750mL/hm2+600mL/hm2+750mL/hm2),and complex combination of Atrazine,2,4-D Butyl ester and Metolachlor of X20(4 500mL/hm2+975mL/hm2+675mL/hm2)could ensure high emergence rate,relatively low seedling damage and has advantages over a single herbicide”
Claim · model-written summary
Postemergence herbicide application after the five-leaf stage was recommended if weeds remained controllable.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“recommended herbicide applying time is after the 5-leaf stage if it is under the premise of weeds controllable”
Claim · model-written summary
Seedling herbicide sensitivity was ranked across the treatments.
- Outcome
- sensitivity of seedlingse0
- Qualifier
- Acetochlor(Atrazine+2,4-D Butyl ester+ Acetochlor)(Atrazine+2,4-D Butyl ester+ Metolachlor) Metolachlor 2,4-D Butyl ester Atrazinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“The sensitivity of seedlings to each herbicide under the designed dosage in this study is:Acetochlor(Atrazine+2,4-D Butyl ester+ Acetochlor)(Atrazine+2,4-D Butyl ester+ Metolachlor) Metolachlor 2,4-D Butyl ester Atrazine”
Claim · model-written summary
Declining net photosynthetic rate was identified as a cause of higher seedling damage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“The decline of net photosynthetic rate is the important reason for the higher seedling damage rate”
Claim · model-written summary
Dry matter accumulation followed the opposite trend from herbicide sensitivity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum”
e0“it also causes the opposite trend between dry matter accumulation and sensitivity of seedlings to herbicide”
The same questions in other papers
acetochlor · growth · SorghumPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
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metolachlor · growth · SorghumPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
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2,4-D · growth · SorghumPositive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
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3 papers more in this group
See all 7 papers →atrazine · growth · SorghumPositive and negative results
6 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
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4 papers more in this group
See all 8 papers →metolachlor · pest · SorghumResults 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.