Abstract
A field experiment was conducted during the late boro seasons (January–May) of 2018 and 2019 to assess the impact of herbicides on rice growth, yield and weed control in transplanted rice in the Agricultural Farm of Palli Siksha Bhavana (Institute of Agriculture), Visva-Bharati University, Sriniketan, West Bengal, India. There were eight different treatments consisting of pretilachlor 50 EC @ 500 g ha-1 at 3 DAT, pyrazosulfuron ethyl 10 WP @ 30 g ha-1 at 3 DAT, ethoxysulfuron 15 WDG @ 15 g ha-1 at 10 DAT, penoxsulam 21.7 SC @ 22.5 g ha-1 at 12 DAT, bispyribac-sodium 10 SC @ 25 g ha-1 at 15 DAT, hand weeding at 20 and 40 DAT, weed-free check and weedy check. Results from the pooled analysis of both the years revealed that pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 resulted in lower weed population and dry weight; higher plant height, number of tillers m-2, dry matter accumulation, leaf area index; grain and straw yield (5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1 respectively). The lowest weed index was registered by pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 and was superior to all other herbicidal treatments. Yield loss due to weeds infestation throughout the crop season was to the extent of 54.33%. Thus, pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 as pre-emergence may be recommended for effective weed control in transplanted late boro rice.
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Claims 7
Claim · model-written summary
Pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha lowered the weed population and weed dry weight.
- Taxon
- rice
Oryza sativat0 - Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1e1
- Interactor
- weede1weed
- Outcome
- weed population and dry weighte1
- Direction
- lowere1
- Qualifier
- pooled analysis of both the yearse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e1“Results from the pooled analysis of both the years revealed that pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 resulted in lower weed population and dry weight; higher plant height, number of tillers m-2, dry matter accumulation, leaf area index; grain and straw yield (5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1 respectively)”
Claim · model-written summary
Pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha increased plant height and number of tillers per square metre of rice.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1e1
- Outcome
- plant height, number of tillers m-2e1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e1“Results from the pooled analysis of both the years revealed that pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 resulted in lower weed population and dry weight; higher plant height, number of tillers m-2, dry matter accumulation, leaf area index; grain and straw yield (5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1 respectively)”
Claim · model-written summary
Pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha increased dry matter accumulation and leaf area index of rice.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1e1
- Outcome
- dry matter accumulation, leaf area indexe1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e1“Results from the pooled analysis of both the years revealed that pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 resulted in lower weed population and dry weight; higher plant height, number of tillers m-2, dry matter accumulation, leaf area index; grain and straw yield (5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1 respectively)”
Claim · model-written summary
Pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha gave grain and straw yields of 5.98 and 7.81 t/ha and 5.81 and 7.62 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1e1
- Outcome
- grain and straw yielde1
- Direction
- higherinferrede1
- Value
- 5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1e1
- Qualifier
- respectivelye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e1“Results from the pooled analysis of both the years revealed that pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 resulted in lower weed population and dry weight; higher plant height, number of tillers m-2, dry matter accumulation, leaf area index; grain and straw yield (5.98 and 7.81 t ha-1 and 5.81 and 7.62 t ha-1 respectively)”
Claim · model-written summary
Pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha gave the lowest weed index, superior to all other herbicide treatments.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1e2
- Outcome
- weed indexe2
- Direction
- loweste2
- Comparator
- all other herbicidal treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e2“The lowest weed index was registered by pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 and was superior to all other herbicidal treatments”
Claim · model-written summary
Yield loss due to weed infestation over the crop season was 54.33% in rice.
- Taxon
- riceOryza sativat0
- Interactor
- weedse3weed
- Outcome
- Yield losse3
- Value
- 54.33%e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e3“Yield loss due to weeds infestation throughout the crop season was to the extent of 54.33%”
Claim · model-written summary
The authors recommend pre-emergence pyrazosulfuron ethyl 30 g/ha plus pretilachlor 500 g/ha for effective weed control in transplanted late boro rice.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 as pre-emergencee4
- Outcome
- effective weed controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Transplanted Late Boro Rice”
e4“pyrazosulfuron ethyl 30 g ha-1 and pretilachlor at 500 g ha-1 as pre-emergence may be recommended for effective weed control in transplanted late boro rice”
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