Abstract
Weeds pose serious threat to wheat productivity, and chemical means are usually employed to combat weed menace in field crops. A field study was undertaken at Agronomy Research Farm, University of Agriculture, Faisalabad, Pakistan during Rabi 2011-12 to appraise the efficacy of some broad-spectrum herbicides against weed growth, and their influence on growth and yield of wheat. Three commonly available broad-spectrum herbicides i.e. pyaxosulam, iodosulfuron + mesosulfuran-methyle and isoproturon + carfentrazone ethyl ester at 14.4, 14.4 and 1000 g a.i. ha -1 were applied as early post-emergence application (30 DAS) in three cultivars viz., Sehar-2006, Lasani-2008 and AARI- 2011. A tank mixture comprising of graminicide pinoxaden at 41.25 g a.i. ha -1 and broadleaf weedicide bromoxynil at 225 g a.i. ha -1 + MCPA at 225 g a.i. ha -1 was also included. Weed free and weedy check (control) plots were included for comparison. The experiment was replicated thrice in a randomized complete block design following factorial arrangement. Net plot size was 7 × 2.25 m 2 . Data regarding weed growth, treatment efficacy, wheat growth and yield was recorded following standard procedures. Weed density was significantly affected by the interaction of wheat cultivars and herbicides; however, this interaction was non-significant for weed biomass at both 60 and 90 DAS. Differences among cultivars were pronounced even in weedy check and wheat cultivar Sehar-2006 experienced less weed infestation in terms of density and biomass. Application of isoproturon + carfentrazone ethyl ester produced over 90% suppression in weed density and biomass along with minimum weed and weed persistence indices and maximum herbicide efficiency. Significant improvements in wheat growth and grain yield were realized by various weed control treatments. Among herbicides, isoproturon + carfentrazone ethyl ester proved
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Claims 8
Claim · model-written summary
Cultivar and herbicide interacted significantly for weed density.
- Taxon
- wheat
Triticum aestivumt0 - Material
- wheat cultivarse0
- Outcome
- Weed densitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed density was significantly affected by the interaction of wheat cultivars and herbicides”
t0“wheat”
Claim · model-written summary
Cultivar by herbicide interaction was nonsignificant for weed biomass at 60 and 90 DAS.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- weed biomasse0
- Qualifier
- at both 60 and 90 DASe0
Not reportedMaterialDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this interaction was non-significant for weed biomass at both 60 and 90 DAS”
t0“wheat”
Claim · model-written summary
Sehar-2006 had lower weed density and biomass in the weedy check.
- Taxon
- wheatTriticum aestivume0
- Material
- Sehar-2006e0
- Outcome
- weed infestation in terms of density and biomasse0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat cultivar Sehar-2006 experienced less weed infestation in terms of density and biomass”
Claim · model-written summary
Isoproturon plus carfentrazone suppressed weed density by over 90%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon + carfentrazone ethyl estere0
- Outcome
- weed densitye0
- Direction
- suppressione0
- Value
- over 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of isoproturon + carfentrazone ethyl ester produced over 90% suppression in weed density and biomass”
t0“wheat”
Claim · model-written summary
Isoproturon plus carfentrazone suppressed weed biomass by over 90%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon + carfentrazone ethyl estere0
- Outcome
- weed biomasse1
- Direction
- suppressione0
- Value
- over 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of isoproturon + carfentrazone ethyl ester produced over 90% suppression in weed density and biomass”
e1“this interaction was non-significant for weed biomass at both 60 and 90 DAS”
t0“wheat”
Claim · model-written summary
Isoproturon plus carfentrazone gave minimum weed and weed persistence indices.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon + carfentrazone ethyl estere0
- Outcome
- weed and weed persistence indicese0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of isoproturon + carfentrazone ethyl ester produced over 90% suppression in weed density and biomass along with minimum weed and weed persistence indices and maximum herbicide efficiency”
t0“wheat”
Claim · model-written summary
Isoproturon plus carfentrazone gave maximum herbicide efficiency.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon + carfentrazone ethyl estere0
- Outcome
- herbicide efficiencye0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of isoproturon + carfentrazone ethyl ester produced over 90% suppression in weed density and biomass along with minimum weed and weed persistence indices and maximum herbicide efficiency”
t0“wheat”
Claim · model-written summary
Weed control treatments significantly improved wheat growth and grain yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- various weed control treatmentse0
- Outcome
- wheat growth and grain yielde0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant improvements in wheat growth and grain yield were realized by various weed control treatments”
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