Abstract
A field experiment was carried out at Directorate of Weed Research, Jabalpur for the consecutive two years during kharif 2009 and 2010 to evaluate the weed control efficiency and crop productivity with K salt of glyphosate formulation in field conditions. Treatments consisted of two transgenic stacked hybrids named Hishell and 900M Gold applied with glyphosate as early post-emergence at 900, 1 800 and 3 600 g a.i./ha during kharif season of 2010 with two conventional hybrids namely Proagro-4640 and HQPM-1. Among the treatments, early post-emergence application of glyphosate at all doses registered lower weed density and higher weed control efficiency, i.e. 100% in all transgenic corn hybrids at 21 DAS and at harvest. Significantly higher numbers of cobs/plot were observed in transgenic hybrids as compared to conventional entries. While more cob length was observed with Hishell Transgenic hybrids at all doses as compared to 900 M Gold transgenic hybrids. Hishell transgenic hybrids at 3 600 g/ha registered significantly higher number of grains per row as compared to with its conventional control, 900 M Gold transgenic hybrid (1 800g/ha), 900 M Gold conventional and national checks. Significantly higher values of 20 cob weight, 20 cob grain weight and total cob weight was observed with Hishell and 900 M Gold transgenic hybrids as compared to other conventional hybrid entries and national checks. Hishell and 900 M Gold transgenic hybrids performed better with regard to grain yield ranging between 6-10 tonnes/ha which was approximately 3 to 4 times higher than the average yield of maize crop per ha, i.e. 2.30 tonnes/ha during both the years. Hishell at all rates of glyphosate application performed equally well in terms of yield but the yield of 900 M Gold decreased as the dose was enhanced from 1 800 to 3 600 g/ha during second year of experimentation.
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Claims 9
Claim · model-written summary
Early post-emergence glyphosate at all doses lowered weed density in transgenic corn.
- Taxon
- transgenic corn
Zea mays subsp. mayst0 - Treatment
- early post-emergence application of glyphosatee1
- Interactor
- weede1weed
- Outcome
- weed densitye1
- Direction
- lowere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among the treatments, early post-emergence application of glyphosate at all doses registered lower weed density and higher weed control efficiency, i.e. 100% in all transgenic corn hybrids at 21 DAS and at harvest”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Early post-emergence glyphosate gave 100% weed control efficiency in transgenic corn hybrids at 21 DAS and at harvest.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Treatment
- early post-emergence application of glyphosatee1
- Outcome
- weed control efficiencye1
- Direction
- highere1
- Value
- 100%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among the treatments, early post-emergence application of glyphosate at all doses registered lower weed density and higher weed control efficiency, i.e. 100% in all transgenic corn hybrids at 21 DAS and at harvest”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Transgenic hybrids had significantly more cobs per plot than conventional entries.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- transgenic hybridse2
- Outcome
- numbers of cobs/plote2
- Direction
- highere2
- Comparator
- conventional entriese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Significantly higher numbers of cobs/plot were observed in transgenic hybrids as compared to conventional entries”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Cob length was greater with Hishell transgenic hybrids than with 900 M Gold transgenic hybrids at all doses.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- Hishelle3
- Outcome
- cob lengthe3
- Direction
- moree3
- Comparator
- 900 M Gold transgenic hybridse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“While more cob length was observed with Hishell Transgenic hybrids at all doses as compared to 900 M Gold transgenic hybrids”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Hishell transgenic hybrids at 3 600 g/ha had significantly more grains per row than their conventional control.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- Hishell transgenic hybridse4
- Treatment
- 3 600 g/hae4
- Outcome
- number of grains per rowe4
- Direction
- highere4
- Comparator
- its conventional controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Hishell transgenic hybrids at 3 600 g/ha registered significantly higher number of grains per row as compared to with its conventional control”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Hishell and 900 M Gold transgenic hybrids had significantly higher cob weights than other conventional hybrids and national checks.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- Hishell and 900 M Gold transgenic hybridse5
- Outcome
- 20 cob weight, 20 cob grain weight and total cob weighte5
- Direction
- highere5
- Comparator
- other conventional hybrid entries and national checkse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Significantly higher values of 20 cob weight, 20 cob grain weight and total cob weight was observed with Hishell and 900 M Gold transgenic hybrids as compared to other conventional hybrid entries and national checks”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Hishell and 900 M Gold transgenic hybrids yielded 6-10 t/ha grain, about 3 to 4 times the average maize yield.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- Hishell and 900 M Gold transgenic hybridse6
- Outcome
- grain yielde6
- Direction
- highere6
- Value
- 6-10 tonnes/hae6
- Comparator
- average yield of maize crop per hae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Hishell and 900 M Gold transgenic hybrids performed better with regard to grain yield ranging between 6-10 tonnes/ha which was approximately 3 to 4 times higher than the average yield of maize crop per ha, i.e. 2.30 tonnes/ha during both the years”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Hishell gave equally good yield at all glyphosate rates.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- Hishelle7
- Treatment
- all rates of glyphosate applicatione7
- Outcome
- yielde7
- Direction
- equally welle7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Hishell at all rates of glyphosate application performed equally well in terms of yield but the yield of 900 M Gold decreased as the dose was enhanced from 1 800 to 3 600 g/ha during second year of experimentation”
t0“weed control and yield in transgenic corn”
Claim · model-written summary
Yield of 900 M Gold decreased as the glyphosate dose rose from 1 800 to 3 600 g/ha in the second year.
- Taxon
- transgenic cornZea mays subsp. mayst0
- Material
- 900 M Golde7
- Treatment
- 1 800 to 3 600 g/hae7
- Outcome
- yielde7
- Direction
- decreasede7
- Qualifier
- during second year of experimentatione7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Hishell at all rates of glyphosate application performed equally well in terms of yield but the yield of 900 M Gold decreased as the dose was enhanced from 1 800 to 3 600 g/ha during second year of experimentation”
t0“weed control and yield in transgenic corn”
The same questions in other papers
glyphosate · yield · Zea mays (maize)Results differ
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