Abstract
A field experiment was conducted during Summer and Kharif seasons of 2007-08 and 2008-09 at Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India to study the effect of hand weeding and Pretilachlor 50 EC @ 500 g a.i. ha-1 as pre-emergence on weed management of different varieties of hybrid and high yielding rice. The experiment was laid out in a split-plot design with three replications for both the years. It has been observed that Pretilachlor 50 EC @ 500 g a.i. ha-1 has a significant effect to control complex weed flora both in hybrid and high yielding varieties of rice but hand weeding twice gave the better result as expected. Among the varieties, the hybrid varieties recorded 36% and 32% more grain yield in Summer and Kharif seasons respectively than high yielding varieties (HYV). The high yielding variety 6444 (V2) showed more grain yield during Summer and Kharif seasons than that of the hybrid 6129 (V1), 97158 (V6), and 96110 (V3), respectively. Regarding weed management, hand weeding twice recorded (13% & 36%) higher grain yield during Summer than that of the chemical treatment and unweeded check, and (20% & 42%) during Kharif seasons respectively. Among the interaction, hand weeding combined with all varieties of hybrid rice recorded higher yield in comparison to other treatment combinations.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 10
Claim · model-written summary
Pretilachlor significantly controlled complex weed flora in rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- Pretilachlor 50 EC @ 500 g a.i. ha-1e0
- Interactor
- weed florae0weed
- Outcome
- complex weed florae0
- Direction
- controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretilachlor 50 EC @ 500 g a.i. ha-1 has a significant effect to control complex weed flora both in hybrid and high yielding varieties of rice”
Claim · model-written summary
Twice hand weeding gave better weed control than pretilachlor.
- Taxon
- riceOryza sativae0
- Treatment
- hand weeding twicee0
- Interactor
- weed florae0weed
- Outcome
- better resulte0
- Direction
- bettere0
- Comparator
- Pretilachlor 50 EC @ 500 g a.i. ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretilachlor 50 EC @ 500 g a.i. ha-1 has a significant effect to control complex weed flora both in hybrid and high yielding varieties of rice but hand weeding twice gave the better result as expected.”
Claim · model-written summary
Hybrid varieties produced 36% more grain yield than high yielding varieties in Summer.
- Taxon
- riceOryza sativat0
- Material
- hybrid varietiese0
- Outcome
- grain yielde0
- Direction
- moree0
- Value
- 36%e0
- Qualifier
- Summere0
- Comparator
- high yielding varieties (HYV)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hybrid varieties recorded 36% and 32% more grain yield in Summer and Kharif seasons respectively than high yielding varieties (HYV).”
t0“rice”
Claim · model-written summary
Hybrid varieties produced 32% more grain yield than high yielding varieties in Kharif.
- Taxon
- riceOryza sativat0
- Material
- hybrid varietiese0
- Outcome
- grain yielde0
- Direction
- moree0
- Value
- 32%e0
- Qualifier
- Kharife0
- Comparator
- high yielding varieties (HYV)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hybrid varieties recorded 36% and 32% more grain yield in Summer and Kharif seasons respectively than high yielding varieties (HYV).”
t0“rice”
Claim · model-written summary
Variety 6444 yielded more than three named hybrids across Summer and Kharif seasons.
- Taxon
- riceOryza sativat0
- Material
- 6444 (V2)e0
- Outcome
- grain yielde0
- Direction
- moree0
- Comparator
- hybrid 6129 (V1), 97158 (V6), and 96110 (V3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The high yielding variety 6444 (V2) showed more grain yield during Summer and Kharif seasons than that of the hybrid 6129 (V1), 97158 (V6), and 96110 (V3), respectively.”
t0“rice”
Claim · model-written summary
Twice hand weeding yielded 13% more than chemical treatment in Summer.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twicee0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 13%e0
- Qualifier
- Summere0
- Comparator
- chemical treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding twice recorded (13% & 36%) higher grain yield during Summer than that of the chemical treatment and unweeded check”
t0“rice”
Claim · model-written summary
Twice hand weeding yielded 36% more than the unweeded check in Summer.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twicee0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 36%e0
- Qualifier
- Summere0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding twice recorded (13% & 36%) higher grain yield during Summer than that of the chemical treatment and unweeded check”
t0“rice”
Claim · model-written summary
Twice hand weeding yielded 20% more than chemical treatment in Kharif.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twicee0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 20%e0
- Qualifier
- Kharife0
- Comparator
- chemical treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding twice recorded (13% & 36%) higher grain yield during Summer than that of the chemical treatment and unweeded check, and (20% & 42%) during Kharif seasons respectively.”
t0“rice”
Claim · model-written summary
Twice hand weeding yielded 42% more than the unweeded check in Kharif.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twicee0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 42%e0
- Qualifier
- Kharife0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding twice recorded (13% & 36%) higher grain yield during Summer than that of the chemical treatment and unweeded check, and (20% & 42%) during Kharif seasons respectively.”
t0“rice”
Claim · model-written summary
Hand weeding with hybrid rice yielded more than other treatment combinations.
- Taxon
- riceOryza sativae0
- Material
- hybrid ricee0
- Treatment
- hand weedinge0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- other treatment combinationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding combined with all varieties of hybrid rice recorded higher yield in comparison to other treatment combinations.”
The same questions in other papers
Pretilachlor · weed · Oryza sativa (rice)Results differ
146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
146 papers more in this group
See all 150 papers →herbicide · yield · Oryza sativa (rice)Positive and negative results
724 papers in the same direction as this paper · 57 in the opposite direction · 20 reporting no difference from an alternative
- no effect
- negative
- negative
798 papers more in this group
See all 802 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.