Abstract
In order to investigate the effects of two herbicides(butralin and s-metolachlor)on kernel yield and physiological characteristics of oats,different concentrations of the two herbicides were applied to an oat crop(Avena sativa)Longyan 3in a single-factor randomized block design.The weed control and kernel yield of the oats were investigated,and the superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)activities and membrane lipid peroxidation(MDA)products in different growth stages were also measured.Higher concentrations of herbicides had a better weed control effect.The oat kernel yield was increased compared with the control at all concentrations of herbicide applied,with the highest increase being 30.7%.Weed control and yield enhancement effects of s-metolachlor were better than butralin,and the high concentration of s-metolachlor had only a small impact on the various antioxidant enzyme activities,so it was safe for weed control of oats.Antioxidant enzyme activities in oat leaves following herbicide application were higher than those of the controls.Activities of different enzymes showed different patterns with increase in herbicide concentration or over time during the growth of the crop.POD and SOD activities were initially increased after herbicide application and then decreased as the crop developed.CAT activity was relatively stable,but the pattern was an initial decrease,followed by an increase.MDA content increased gradually with time.
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Claims 10
Claim · model-written summary
Higher herbicide concentrations improved weed control.
- Taxon
- Avena sativa
Avena sativae1 - Treatment
- Higher concentrations of herbicidese0
- Outcome
- weed control effecte0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentrations of herbicides had a better weed control effect”
e1“an oat crop(Avena sativa)Longyan 3”
Claim · model-written summary
Herbicides increased oat kernel yield against control, with a maximum increase of 30.7%.
- Taxon
- oatAvena sativae0
- Treatment
- herbicidee0
- Outcome
- kernel yielde0
- Direction
- increasede0
- Value
- 30.7%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oat kernel yield was increased compared with the control at all concentrations of herbicide applied,with the highest increase being 30.7%”
Claim · model-written summary
S-metolachlor gave better weed control than butralin.
- Taxon
- oatsAvena sativae1
- Treatment
- s-metolachlore0
- Outcome
- Weed controle0
- Direction
- bettere0
- Comparator
- butraline0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control and yield enhancement effects of s-metolachlor were better than butralin”
e1“safe for weed control of oats”
Claim · model-written summary
S-metolachlor gave better yield enhancement than butralin.
- Taxon
- oatsAvena sativae1
- Treatment
- s-metolachlore0
- Outcome
- yield enhancemente0
- Direction
- bettere0
- Comparator
- butraline0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control and yield enhancement effects of s-metolachlor were better than butralin”
e1“safe for weed control of oats”
Claim · model-written summary
High s-metolachlor concentration had only a small impact on antioxidant enzyme activities.
- Taxon
- oatsAvena sativae1
- Treatment
- high concentration of s-metolachlore0
- Outcome
- antioxidant enzyme activitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the high concentration of s-metolachlor had only a small impact on the various antioxidant enzyme activities”
e1“safe for weed control of oats”
Claim · model-written summary
Herbicide application increased oat leaf antioxidant enzyme activities relative to controls.
- Taxon
- oatAvena sativae0
- Organ / stage
- leavese0
- Treatment
- herbicide applicatione0
- Outcome
- Antioxidant enzyme activitiese0
- Direction
- highere0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Antioxidant enzyme activities in oat leaves following herbicide application were higher than those of the controls”
Claim · model-written summary
POD and SOD activities rose initially after herbicide application and then declined with crop development.
- Taxon
- oatAvena sativae1
- Treatment
- herbicide applicatione0
- Outcome
- POD and SOD activitiese0
- Direction
- initially increased after herbicide application and then decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“POD and SOD activities were initially increased after herbicide application and then decreased as the crop developed”
e1“oat leaves”
Claim · model-written summary
CAT activity first declined, then increased.
- Taxon
- oatAvena sativae1
- Outcome
- CAT activitye0
- Direction
- an initial decrease,followed by an increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CAT activity was relatively stable,but the pattern was an initial decrease,followed by an increase”
e1“oat leaves”
Claim · model-written summary
MDA content gradually increased over time.
- Taxon
- oatAvena sativae1
- Outcome
- MDA contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA content increased gradually with time”
e1“oat leaves”
Claim · model-written summary
The authors judged high-concentration s-metolachlor safe for oat weed control.
- Taxon
- oatsAvena sativae0
- Treatment
- high concentration of s-metolachlore1
- Outcome
- safe for weed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was safe for weed control of oats”
e1“the high concentration of s-metolachlor”
The same questions in other papers
herbicide · yield · Avena sativa (oats)Positive and negative results
11 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- negative
- negative
15 papers more in this group
See all 19 papers →herbicide · weed · Avena sativa (oats)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →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.