Abstract
A study was conducted during winter (Rabi) season of 1998-2000 to find out optimum dose and mode of metribuzin application on its effect on Phalaris minor (Retz) and yield of wheat (Triticum aestivum L. emend. Fiori and Paol). The results showed that there was severe competition between wheat and little canary grass (Phalaris minor). Competition by yellow sweet clover (Melilotus indica), swincress (Coronopus didymus) and wood sorrel (Rumex sp.) which also invaded the field was insignificant. The average reduction in grain yield due to P. minor competition was 36%. Weed control treatments lowered weed population and weed biomass accumulation and boosted up crop yield. Application of metribuzin as post-emergence resulted in better control of weeds than its pre-emergence application. At 200 g/ha, it killed all the plants of swincress, yellow sweet clover and wood sorrel (Rumex sp.) and gave excellent control of Phalaris minor (94%). At 150 g/ha, its effect on e. didymus and Rumex sp. was almost similar to that of 200 g/ha,but slightly lower on P. minor (86%) and poor on M. indica. Pendimethalin gave moderate control ofP. minor and good control of M. indica, e. didymus and Rumex sp. The highest yield was recorded in hand weeding which was significantly superior to all other treatments. Metribuzin as post-emergence at 100 and 150 g/ha caused significantly higher increase compared to its application at 200 g/ha pr7 and post emergence and 150 g/ha pre emergence. It caused marked increase in productive tillers and yield attributes. 'The increase in yield attributes in pendimethalin was similar to that ofmetribuzin 100 g/ha pre-emergence.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 16
Claim · model-written summary
Phalaris minor competition reduced wheat grain yield by 36%.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- P. minor
.jpg?width=60)
Phalaris minore0weed - Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 36%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The average reduction in grain yield due to P. minor competition was 36%”
t0“wheat”
Claim · model-written summary
Competition from three other weeds was insignificant.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- yellow sweet clovere0weed
- Outcome
- Competitione0
- Qualifier
- swincress (Coronopus didymus) and wood sorrel (Rumex sp.)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition by yellow sweet clover (Melilotus indica), swincress (Coronopus didymus) and wood sorrel (Rumex sp.) which also invaded the field was insignificant”
t0“wheat”
Claim · model-written summary
Weed control treatments lowered weed population and biomass.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Weed control treatmentse0
- Outcome
- weed population and weed biomass accumulatione0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control treatments lowered weed population and weed biomass accumulation and boosted up crop yield”
t0“wheat”
Claim · model-written summary
Weed control treatments boosted crop yield.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Weed control treatmentse0
- Outcome
- crop yielde0
- Direction
- boosted upe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control treatments lowered weed population and weed biomass accumulation and boosted up crop yield”
t0“wheat”
Claim · model-written summary
Post-emergence metribuzin controlled weeds better than pre-emergence application.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- metribuzin as post-emergencee0
- Outcome
- control of weedse0
- Direction
- bettere0
- Comparator
- pre-emergence applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of metribuzin as post-emergence resulted in better control of weeds than its pre-emergence application”
t0“wheat”
Claim · model-written summary
Metribuzin at 200 g/ha killed swincress, yellow sweet clover and wood sorrel.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 200 g/hae0
- Interactor
- swincresse0weed
- Outcome
- killed all the plantse0
- Qualifier
- yellow sweet clover and wood sorrel (Rumex sp.)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 200 g/ha, it killed all the plants of swincress, yellow sweet clover and wood sorrel (Rumex sp.) and gave excellent control of Phalaris minor (94%)”
t0“wheat”
Claim · model-written summary
Metribuzin at 200 g/ha controlled Phalaris minor by 94%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 200 g/hae0
- Interactor
- Phalaris minorPhalaris minore0weed
- Outcome
- control of Phalaris minore0
- Direction
- excellente0
- Value
- 94%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 200 g/ha, it killed all the plants of swincress, yellow sweet clover and wood sorrel (Rumex sp.) and gave excellent control of Phalaris minor (94%)”
t0“wheat”
Claim · model-written summary
Metribuzin at 150 g/ha controlled P. minor by 86%, slightly less than 200 g/ha.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 150 g/hae0
- Interactor
- P. minorPhalaris minore0weed
- Outcome
- P. minore0
- Direction
- slightly lowere0
- Value
- 86%e0
- Comparator
- 200 g/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 150 g/ha, its effect on e. didymus and Rumex sp. was almost similar to that of 200 g/ha,but slightly lower on P. minor (86%) and poor on M. indica”
t0“wheat”
Claim · model-written summary
Metribuzin at 150 g/ha controlled e. didymus and Rumex sp. similarly to 200 g/ha.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 150 g/hae0
- Interactor
- e. didymuse0weed
- Outcome
- effect on e. didymus and Rumex sp.e0
- Direction
- almost similare0
- Comparator
- 200 g/hae0
RumexOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 150 g/ha, its effect on e. didymus and Rumex sp. was almost similar to that of 200 g/ha,but slightly lower on P. minor (86%) and poor on M. indica”
t0“wheat”
Claim · model-written summary
Metribuzin at 150 g/ha controlled M. indica poorly.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 150 g/hae0
- Interactor
- M. indica
Melilotus indicuse0weed - Outcome
- M. indicae0
- Direction
- poore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 150 g/ha, its effect on e. didymus and Rumex sp. was almost similar to that of 200 g/ha,but slightly lower on P. minor (86%) and poor on M. indica”
t0“wheat”
Claim · model-written summary
Pendimethalin gave moderate control of P. minor.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Pendimethaline0
- Interactor
- P. minorPhalaris minore0weed
- Outcome
- control ofP. minore0
- Direction
- moderatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pendimethalin gave moderate control ofP. minor and good control of M. indica, e. didymus and Rumex sp.”
t0“wheat”
Claim · model-written summary
Pendimethalin gave good control of M. indica, e. didymus and Rumex sp.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Pendimethaline0
- Interactor
- M. indicaMelilotus indicuse0weed
- Second interactor
- e. didymuse0weed
- Outcome
- good control of M. indica, e. didymus and Rumex sp.e0
- Direction
- goode0
- Qualifier
- Rumex sp.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pendimethalin gave moderate control ofP. minor and good control of M. indica, e. didymus and Rumex sp.”
t0“wheat”
Claim · model-written summary
Hand weeding produced the highest yield, significantly above other treatments.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- hand weedinge0
- Outcome
- yielde0
- Direction
- higheste0
- Comparator
- all other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield was recorded in hand weeding which was significantly superior to all other treatments”
t0“wheat”
Claim · model-written summary
Post-emergence metribuzin at 100 and 150 g/ha increased yield significantly above other specified metribuzin treatments.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- post-emergence at 100 and 150 g/hae0
- Outcome
- increasee0
- Direction
- highere0
- Comparator
- 200 g/ha pr7 and post emergence and 150 g/ha pre emergencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metribuzin as post-emergence at 100 and 150 g/ha caused significantly higher increase compared to its application at 200 g/ha pr7 and post emergence and 150 g/ha pre emergence”
t0“wheat”
Claim · model-written summary
Metribuzin increased productive tillers and yield attributes.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- metribuzint0
- Outcome
- productive tillers and yield attributese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It caused marked increase in productive tillers and yield attributes”
t0“metribuzin application on Phalaris minor and yield of wheat”
Claim · model-written summary
Yield attribute increase under pendimethalin resembled metribuzin 100 g/ha pre-emergence.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- pendimethaline0
- Outcome
- yield attributese0
- Direction
- similare0
- Comparator
- metribuzin 100 g/ha pre-emergencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'The increase in yield attributes in pendimethalin was similar to that ofmetribuzin 100 g/ha pre-emergence.”
t0“wheat”
The same questions in other papers
pendimethalin · yield · Triticum aestivum (wheat)Results differ
56 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
62 papers more in this group
See all 66 papers →metribuzin · yield · Triticum aestivum (wheat)Results differ
44 papers in the same direction as this paper · 27 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
71 papers more in this group
See all 75 papers →pendimethalin · Phalaris minor · Triticum aestivum (wheat)Positive and negative results
17 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
15 papers more in this group
See all 19 papers →metribuzin · weed · Triticum aestivum (wheat)Positive and negative results
59 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
59 papers more in this group
See all 63 papers →herbicide · weed · Triticum aestivum (wheat)Positive and negative results
361 papers in the same direction as this paper · 34 in the opposite direction · 5 reporting no difference from an alternative
- negative
- negative
- no effect
397 papers more in this group
See all 401 papers →herbicide · yield · Triticum aestivum (wheat)Positive and negative results
465 papers in the same direction as this paper · 87 in the opposite direction · 10 reporting no difference from an alternative
- negative
- no effect
- no effect
559 papers more in this group
See all 563 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.