Abstract
A field experiment was carried out on sandy clay-loam soil in North-western Himalayas of India and the ex- perimental field had enough weed population. An average decrease in grain yield by 29% was observed due to season-long weed-crop competition. The best weed-control efficiency (85.7-93.8%) was achieved with metribuzin compared to other herbicides, i.e. Sulfosulfuron, isoproturon and 2, 4-D (55.4-87.5%). Earlier timing of metribuzin application (40 days stage) provided excellent control of Phalaris minor (Ftetz.) Pers., while control of Polygonum plebeium R.Br. and Melilotus indica All. was better with application at 60 days stage. Sulfosulfuron showed high activity against all weed species except I? plebeium and at equivalent doses, control was greater at the earlier timing of application. Slight crop injury in terms of yellowing of leaves and stunted growth was ob- served in the plots treated with sulfosulfuron. It was more pronounced under delayed application of the herbi- cide. The injury, however, disappeared with the advancement of crop growth. All the treatments except 2.4-D ap- plication gave significantly higher grain yield compared to weeded check. The highest grain yield was recorded in manual weeding treatment. Lower doses of sulfosulfuron (20 to 25 g/ha) and metribuzin (230 to 245 glha) both applied at 40 days stage gave yields similar to manual weeding treatment.
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Claims 10
Claim · model-written summary
Season-long weed competition decreased grain yield by 29%.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- season-long weed-crop competitione0
- Outcome
- grain yielde0
- Direction
- decreasee0
- Value
- 29%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An average decrease in grain yield by 29% was observed due to season-long weed-crop competition”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Metribuzin produced the best weed-control efficiency of 85.7-93.8% relative to the other listed herbicides.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- metribuzine0
- Outcome
- weed-control efficiencye0
- Direction
- beste0
- Value
- 85.7-93.8%e0
- Comparator
- other herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best weed-control efficiency (85.7-93.8%) was achieved with metribuzin compared to other herbicides, i.e. Sulfosulfuron, isoproturon and 2, 4-D (55.4-87.5%)”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Metribuzin at 40 days controlled Phalaris minor.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- metribuzin application (40 days stage)e0
- Interactor
- Phalaris minor
.jpg?width=60)
Phalaris minore0weed - Outcome
- control of Phalaris minore0
- Direction
- excellente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Earlier timing of metribuzin application (40 days stage) provided excellent control of Phalaris minor (Ftetz.) Pers.”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Metribuzin at 60 days better controlled Polygonum plebeium and Melilotus indica.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- application at 60 days stagee0
- Interactor
- Polygonum plebeium
Polygonum plebeiume0weed - Second interactor
- Melilotus indica
Melilotus indicuse0weed - Outcome
- control of Polygonum plebeium R.Br. and Melilotus indica All.e0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Polygonum plebeium R.Br. and Melilotus indica All. was better with application at 60 days stage”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Sulfosulfuron showed high activity against weed species except I? plebeium.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sulfosulfurone0
- Interactor
- I? plebeiume0weed
- Outcome
- high activity against all weed species except I? plebeiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfosulfuron showed high activity against all weed species except I? plebeium”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Earlier sulfosulfuron application gave greater weed control at equivalent doses.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- earlier timing of applicatione0
- Outcome
- controle0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at equivalent doses, control was greater at the earlier timing of application”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Sulfosulfuron caused transient leaf yellowing and stunted growth, stronger with delayed application.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sulfosulfurone0
- Outcome
- yellowing of leaves and stunted growthe0
- Direction
- more pronouncede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Slight crop injury in terms of yellowing of leaves and stunted growth was ob- served in the plots treated with sulfosulfuron. It was more pronounced under delayed application of the herbi- cide. The injury, however, disappeared with the advancement of crop growth”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
All treatments except 2.4-D yielded significantly more grain than the weeded check.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- All the treatments except 2.4-D ap- plicatione0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- weeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the treatments except 2.4-D ap- plication gave significantly higher grain yield compared to weeded check”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Manual weeding gave the highest grain yield.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- manual weeding treatmente0
- Outcome
- grain yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield was recorded in manual weeding treatment”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Low sulfosulfuron and metribuzin doses at 40 days gave yields similar to manual weeding.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Lower doses of sulfosulfuron (20 to 25 g/ha) and metribuzin (230 to 245 glha) both applied at 40 days stagee0
- Outcome
- yieldse0
- Direction
- similare0
- Comparator
- manual weeding treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower doses of sulfosulfuron (20 to 25 g/ha) and metribuzin (230 to 245 glha) both applied at 40 days stage gave yields similar to manual weeding treatment”
t0“wheat (Triticum aestivum)”
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