Abstract
A field trial was carried out to investigate the effects of various concentrations (0, 1, 2, 3kg.a.i/ha) of metolachlor on physiological growth character of tomato. Results of this study showed that weeds were decreased in proportion to applied concentration of metolachlor. Metolachlor at 3kga.i/ha did not improve physiological growth character of tomato in spite of effective weed reduction. Tomato leaf area ratio (LAR) declination with age was higher in the plots sprayed with metolachlor at 1-2kg.a.i /ha than those obtained in the weedy control plots. The relative growth rate (RGR) and net assimilation rate (NAR) of tomato in the weedy control plots were adversely affected as from 6th week after transplanting .This period coincides with high weed density. However, the relative growth rate (RGR) and net assimilation rate (NAR) of tomato in plots sprayed with metholachlor at 1-2kg.a.i/ha showed vigorous growth till 7th week after transplanting(WAT) before showing declination. These results suggest that metolachlor at 1-2kg.a.i/ha could be an effective and safe herbicide for application in transplanted tomato.
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Claims 6
Claim · model-written summary
Weed abundance declined as metolachlor concentration rose.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- metolachlore0
- Interactor
- weedse0weed
- Outcome
- weedse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weeds were decreased in proportion to applied concentration of metolachlor”
e1“weeds were decreased in proportion to applied concentration of metolachlor”
t0“Tomato”
Claim · model-written summary
Metolachlor at 3kga.i/ha did not improve tomato physiological growth despite weed reduction.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Metolachlor at 3kga.i/hae0
- Interactor
- weede0weed
- Outcome
- physiological growth charactere0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metolachlor at 3kga.i/ha did not improve physiological growth character of tomato in spite of effective weed reduction”
e1“Metolachlor at 3kga.i/ha did not improve physiological growth character of tomato in spite of effective weed reduction”
Claim · model-written summary
Tomato leaf area ratio declined faster with age at 1-2kg.a.i /ha than in weedy controls.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- metolachlor at 1-2kg.a.i /hae0
- Interactor
- weedye0weed
- Outcome
- leaf area ratio (LAR) declinatione0
- Direction
- highere0
- Value
- 1-2kg.a.i /hae0
- Comparator
- weedy control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato leaf area ratio (LAR) declination with age was higher in the plots sprayed with metolachlor at 1-2kg.a.i /ha than those obtained in the weedy control plots”
e1“Tomato leaf area ratio (LAR) declination with age was higher in the plots sprayed with metolachlor at 1-2kg.a.i /ha than those obtained in the weedy control plots”
Claim · model-written summary
In weedy controls, tomato relative growth and net assimilation rates were adversely affected from week 6 after transplanting.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- weedye0weed
- Outcome
- relative growth rate (RGR) and net assimilation rate (NAR)e0
- Direction
- adversely affectede0
- Qualifier
- 6th week after transplantinge0
- Setting
- weedy control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relative growth rate (RGR) and net assimilation rate (NAR) of tomato in the weedy control plots were adversely affected as from 6th week after transplanting”
e1“The relative growth rate (RGR) and net assimilation rate (NAR) of tomato in the weedy control plots were adversely affected as from 6th week after transplanting”
Claim · model-written summary
At 1-2kg.a.i/ha, tomato relative growth and net assimilation rates showed vigorous growth until week 7, then declined.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- metholachlor at 1-2kg.a.i/hae0
- Outcome
- relative growth rate (RGR) and net assimilation rate (NAR)e0
- Direction
- vigorous growthe0
- Qualifier
- till 7th week after transplanting(WAT) before showing declinatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative growth rate (RGR) and net assimilation rate (NAR) of tomato in plots sprayed with metholachlor at 1-2kg.a.i/ha showed vigorous growth till 7th week after transplanting(WAT) before showing declination”
e1“the relative growth rate (RGR) and net assimilation rate (NAR) of tomato in plots sprayed with metholachlor at 1-2kg.a.i/ha showed vigorous growth till 7th week after transplanting(WAT) before showing declination”
Claim · model-written summary
The authors suggest metolachlor at 1-2kg.a.i/ha as a safe and effective herbicide in transplanted tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- metolachlor at 1-2kg.a.i/hae0
- Outcome
- effective and safe herbicide for application in transplanted tomatoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metolachlor at 1-2kg.a.i/ha could be an effective and safe herbicide for application in transplanted tomato”
e1“metolachlor at 1-2kg.a.i/ha could be an effective and safe herbicide for application in transplanted tomato”
The same questions in other papers
metolachlor · growth · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
metolachlor · weed · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- positive
- 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.