Abstract
A field study was conducted during summer seasons of 2015 and 2016 to evaluate the efficacy of post-emergence herbicides at Navsari Agricultural University, Navsari. Total twelve treatments consisting of pretilachlor 1250 g/ha and pyrazosulfuron-ethyl 25 g/ha as pre-emergence (PE); bispyribac-sodium salt 50 g/ha and cyhalofop-butyl 100 g/ha at 20 DAS as post-emergence; stale seedbed, hand weeding and unweeded check were evaluated. Pretilachlor 1250 g/ha PE or pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS suppressed both weed density and dry weight over control. Growth and yield attributes, viz. plant height, no. of tillers, no. of panicles/length of panicles and no. of grain/panicles were improved significantly with pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS and pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS. Similarly, higher rice grain and straw yields and maximum net returns were also associated with these combinations. Pre-and post-emergence application of pretilachlor 1250 g/ha or pyrazosulfuron-ethyl 25 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS appeared to be a viable strategy for weed control in direct-seeded rice with higher economic returns.
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Claims 8
Claim · model-written summary
Pretilachlor followed by bispyribac suppressed weed density and dry weight over control.
- Taxon
- rice
Oryza sativat0 - Treatment
- Pretilachlor 1250 g/ha PEe0
- Interactor
- weede0weed
- Outcome
- weed density and dry weighte0
- Direction
- suppressede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretilachlor 1250 g/ha PE or pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS suppressed both weed density and dry weight over control”
t0“direct-seeded rice”
Claim · model-written summary
Pyrazosulfuron-ethyl followed by bispyribac suppressed weed density and dry weight over control.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DASe0
- Interactor
- weede0weed
- Outcome
- weed density and dry weighte0
- Direction
- suppressede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretilachlor 1250 g/ha PE or pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS suppressed both weed density and dry weight over control”
t0“direct-seeded rice”
Claim · model-written summary
Pretilachlor followed by bispyribac significantly improved rice growth and yield attributes.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DASe0
- Outcome
- plant height, no. of tillers, no. of panicles/length of paniclese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth and yield attributes, viz. plant height, no. of tillers, no. of panicles/length of panicles and no. of grain/panicles were improved significantly with pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS and pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS”
t0“direct-seeded rice”
Claim · model-written summary
Pyrazosulfuron-ethyl followed by bispyribac significantly improved rice growth and yield attributes.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DASe0
- Outcome
- plant height, no. of tillers, no. of panicles/length of paniclese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth and yield attributes, viz. plant height, no. of tillers, no. of panicles/length of panicles and no. of grain/panicles were improved significantly with pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS and pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS”
t0“direct-seeded rice”
Claim · model-written summary
Pretilachlor followed by bispyribac was associated with higher rice grain and straw yields and maximum net returns.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DASe1
- Outcome
- rice grain and straw yields and maximum net returnse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher rice grain and straw yields and maximum net returns were also associated with these combinations”
e1“pretilachlor 1250 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS”
t0“direct-seeded rice”
Claim · model-written summary
Pyrazosulfuron-ethyl followed by bispyribac was associated with higher rice grain and straw yields and maximum net returns.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DASe1
- Outcome
- rice grain and straw yields and maximum net returnse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher rice grain and straw yields and maximum net returns were also associated with these combinations”
e1“and pyrazosulfuron-ethyl 25 g/ha fb bispyribac-sodium salt 50 g/ha at 30 DAS”
t0“direct-seeded rice”
Claim · model-written summary
The authors consider pretilachlor followed by bispyribac viable for weed control and higher returns in direct-seeded rice.
- Taxon
- riceOryza sativae0
- Treatment
- pretilachlor 1250 g/hae0
- Outcome
- viable strategy for weed control in direct-seeded rice with higher economic returnse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretilachlor 1250 g/ha or pyrazosulfuron-ethyl 25 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS appeared to be a viable strategy for weed control in direct-seeded rice with higher economic returns”
Claim · model-written summary
The authors consider pyrazosulfuron-ethyl followed by bispyribac viable for weed control and higher returns in direct-seeded rice.
- Taxon
- riceOryza sativae0
- Treatment
- pyrazosulfuron-ethyl 25 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DASe0
- Outcome
- viable strategy for weed control in direct-seeded rice with higher economic returnse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretilachlor 1250 g/ha or pyrazosulfuron-ethyl 25 g/ha PE fb bispyribac-sodium salt 50 g/ha at 30 DAS appeared to be a viable strategy for weed control in direct-seeded rice with higher economic returns”
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