Abstract
Wheat (Triticum aestivum L.) crop grown with rice-wheat cropping system is infested with complex weed flora. Rumex spp. is the major broad-leaf weed of wheat crop wherein the poor efficacy of recommended herbicides and likelihood of herbicide resistance has been noticed. Hence, two herbicides - metsulfuron (X dose- 4g a.i/ha) and halauxifen + fluroxypyr (X dose- 240 g a.i/ha) applied at three doses (0.5X, X and 2.0X) were evaluated against four populations of Rumex spp. in a pot experiment carried out at screen house of college of Agriculture, CCS HAU, Hisar during rabi 2017-18. One unsprayed control was also kept for each population and herbicide for comparison. Results indicated that majority of the Rumex biotypes have attained resistance against metsulfuron and were not controlled even at double of the recommended dose. Higher values of plant height, chlorophyll fluorescence, fresh weight and dry weight and lower value of electrical conductivity was observed in the herbicidal treatments showing comparatively less efficacy against this weed. All Rumex biotypes were found highly sensitive to halauxifen + fluroxypyr at recommended dose and recorded 85-90% visual mortality. The application of halauxifen + fluroxypyr is the best alternative option to manage this weed in problematic areas.
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Claims 7
Claim · model-written summary
Most Rumex biotypes have attained resistance to metsulfuron and were not controlled even at double the recommended dose.
- Taxon
- wheat
Triticum aestivume2 - Treatment
- metsulfurone1
- Outcome
- controllede1
- Direction
- not controllede1
- Comparator
- recommended dosee1
RumexOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“majority of the Rumex biotypes have attained resistance against metsulfuron and were not controlled even at double of the recommended dose”
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
Claim · model-written summary
Plant height and chlorophyll fluorescence of Rumex were higher in herbicidal treatments with comparatively less efficacy.
- Taxon
- wheatTriticum aestivume2
- Treatment
- herbicidal treatmentse4
- Outcome
- plant height, chlorophyll fluorescencee3
- Direction
- Highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e3“Higher values of plant height, chlorophyll fluorescence”
e4“herbicidal treatments showing comparatively less efficacy against this weed”
Claim · model-written summary
Fresh weight and dry weight of Rumex were higher in herbicidal treatments with comparatively less efficacy.
- Taxon
- wheatTriticum aestivume2
- Treatment
- herbicidal treatmentse4
- Outcome
- fresh weight and dry weighte5
- Direction
- Highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e5“Higher values of plant height, chlorophyll fluorescence, fresh weight and dry weight”
e4“herbicidal treatments showing comparatively less efficacy against this weed”
Claim · model-written summary
Electrical conductivity was lower in herbicidal treatments with comparatively less efficacy.
- Taxon
- wheatTriticum aestivume2
- Treatment
- herbicidal treatmentse6
- Outcome
- electrical conductivitye6
- Direction
- lowere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e6“lower value of electrical conductivity was observed in the herbicidal treatments”
Claim · model-written summary
All Rumex biotypes were highly sensitive to halauxifen + fluroxypyr at the recommended dose.
- Taxon
- wheatTriticum aestivume2
- Treatment
- halauxifen + fluroxypyr at recommended dosee7
- Interactor
- Rumex biotypese7weed
- Outcome
- highly sensitivee7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e7“All Rumex biotypes were found highly sensitive to halauxifen + fluroxypyr at recommended dose”
Claim · model-written summary
Halauxifen + fluroxypyr at the recommended dose caused 85-90% visual mortality of Rumex biotypes.
- Taxon
- wheatTriticum aestivume2
- Treatment
- halauxifen + fluroxypyr at recommended dosee7
- Interactor
- Rumex biotypese7weed
- Outcome
- visual mortalitye3
- Direction
- increaseinferrede3
- Value
- 85-90%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e7“All Rumex biotypes were found highly sensitive to halauxifen + fluroxypyr at recommended dose”
e3“recorded 85-90% visual mortality”
Claim · model-written summary
Halauxifen + fluroxypyr is the best alternative option to manage this weed in problematic areas.
- Taxon
- wheatTriticum aestivume2
- Treatment
- application of halauxifen + fluroxypyre3
- Outcome
- best alternative option to manage this weed in problematic arease3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rumex spp. is the major broad-leaf weed of wheat crop”
e3“The application of halauxifen + fluroxypyr is the best alternative option to manage this weed in problematic areas”
The same questions in other papers
metsulfuron methyl · Rumex · Triticum aestivum (wheat)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →halauxifen · pest · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- positive
fluroxypyr · pest · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- 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.