Abstract
A field experiment was carried out at Tamil Nadu Agricultural University, Coimbatore during kharif seasons of 2010 and 2011 to study the effect of Glyphosate on weed management and grain yield in kharif maize of transgenic stacked and conventional maize hybrid. This investigation was conducted with the following objectives to evaluate the weed control efficiency and crop productivity with K salt of glyphosate formulations under field conditions. Treatments consisted of two transgenic stacked hybrids named 30V92 and 30B11 applied with glyphosate as early post emergence at 900 and 1800 g a.e ha-1 during kharif season of 2010 and conventional maize hybrids named 30V92 and 30B11 applied with glyphosate by controlled droplet application method at 900, 1350 and 1800 g a.e ha-1 during kharif season of 2011 compared with non-transgenic counterpart maize hybrids applied with pre emergence atrazine at 0.5 kg ha-1 followed by one hand weeding on 40 days after sowing (DAS) with and without insect management. Among the treatments, early POE application of glyphosate at 1800 g a.e ha-1 registered lower weed density and higher weed control efficiency in transgenic and non-transgenic maize hybrids at all the intervals. Higher grain yield was registered with post emergence application of glyphosate at 1800 g a.e ha-1 in transgenic and non transgenic maize hybrid of 30V92 during both the kharif seasons Key words: Glyphosate, transgenic maize, weed control efficiency, weed index, yield.
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Claims 3
Claim · model-written summary
Glyphosate at 1800 g a.e ha-1 reduced weed density in transgenic and non-transgenic maize hybrids.
- Taxon
- maize hybridse0
- Material
- transgenic and non-transgenic maize hybridse0
- Treatment
- early POE application of glyphosate at 1800 g a.e ha-1e0
- Outcome
- weed densitye0
- Direction
- lowere0
Not reportedComparator
Verbatim
e0“early POE application of glyphosate at 1800 g a.e ha-1 registered lower weed density and higher weed control efficiency in transgenic and non-transgenic maize hybrids at all the intervals”
Claim · model-written summary
Glyphosate at 1800 g a.e ha-1 increased weed control efficiency in transgenic and non-transgenic maize hybrids.
- Taxon
- maize hybridse0
- Material
- transgenic and non-transgenic maize hybridse0
- Treatment
- early POE application of glyphosate at 1800 g a.e ha-1e0
- Outcome
- weed control efficiencye0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“early POE application of glyphosate at 1800 g a.e ha-1 registered lower weed density and higher weed control efficiency in transgenic and non-transgenic maize hybrids at all the intervals”
Claim · model-written summary
Post-emergence glyphosate at 1800 g a.e ha-1 produced higher grain yield in maize hybrid 30V92 in both seasons.
- Material
- 30V92e0
- Treatment
- post emergence application of glyphosate at 1800 g a.e ha-1e0
- Outcome
- grain yielde0
- Direction
- Highere0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher grain yield was registered with post emergence application of glyphosate at 1800 g a.e ha-1 in transgenic and non transgenic maize hybrid of 30V92 during both the kharif seasons”
The same questions in other papers
glyphosate · yield · Zea mays (maize)Results differ
41 papers in the same direction as this paper · 29 in the opposite direction · 6 reporting no difference from an alternative
- no effect
- positive
- negative
73 papers more in this group
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