Abstract
Field experiments were conducted at Tamil Nadu Agricultural University, Coimbatore to study the weed and crop phytotoxicity and soil weed seed bank of transgenic stacked maize hybrids named Hishell and 900 M Gold and the treatments were, glyphosate as early post emergence application (POE) at 900, 1800 and 3600 g a.e ha-1 compared with non-transgenic counterpart maize hybrids applied with pre-emergence (PE) atrazine at 0.5 kg ha-1 followed by one hand weeding (HW) on 40 DAS and with and without insect management. The results revealed that the rate of phytotoxicity development and time to destruction of weeds was increased over the increase of glyphosate doses from 900 g a.e ha-1 to 3600 g a.e ha-1 without affecting the crop growth. Post emergence application of glyphosate at 900 and 1800 g a.e ha-1 in herbicide tolerant transgenic maize resulted in more number of bacteria, fungi and actinomycetes. Whereas, in higher dose (3600 g a.e ha-1) initial reduction of microbial population was observed and it recovered within 45 days after glyphosate spraying. PE application of atrazine exerted a significant detrimental effect on soil bacteria, fungi and actinomycetes and reduced the microbial count in herbicide treated plots upto 30 DAHS. Thereafter, microbial population started to recover slowly.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 7
Claim · model-written summary
Increasing glyphosate dose increased the rate of weed phytotoxicity and weed destruction.
- Treatment
- glyphosate doses from 900 g a.e ha-1 to 3600 g a.e ha-1e0
- Interactor
- weedse0weed
- Outcome
- phytotoxicity development and time to destruction of weedse0
- Direction
- increasede0
- Comparator
- 900 g a.e ha-1e0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rate of phytotoxicity development and time to destruction of weeds was increased over the increase of glyphosate doses from 900 g a.e ha-1 to 3600 g a.e ha-1”
t0“transgenic maize”
Claim · model-written summary
Increasing glyphosate dose did not affect maize growth.
- Treatment
- glyphosate doses from 900 g a.e ha-1 to 3600 g a.e ha-1e0
- Outcome
- crop growthe0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate doses from 900 g a.e ha-1 to 3600 g a.e ha-1 without affecting the crop growth”
t0“transgenic maize”
Claim · model-written summary
Glyphosate at 900 g a.e ha-1 increased soil bacterial, fungal and actinomycete counts in herbicide tolerant maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate at 900 and 1800 g a.e ha-1 in herbicide tolerant transgenic maize resulted in more number of bacteria, fungi and actinomycetes”
Claim · model-written summary
Glyphosate at 1800 g a.e ha-1 increased soil bacterial, fungal and actinomycete counts in herbicide tolerant maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate at 900 and 1800 g a.e ha-1 in herbicide tolerant transgenic maize resulted in more number of bacteria, fungi and actinomycetes”
Claim · model-written summary
The high glyphosate dose initially reduced soil microbial populations, which recovered within 45 days.
- Treatment
- 3600 g a.e ha-1e0
- Outcome
- microbial populatione0
- Direction
- initial reductione0
- Qualifier
- recovered within 45 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher dose (3600 g a.e ha-1) initial reduction of microbial population was observed and it recovered within 45 days after glyphosate spraying”
t0“transgenic maize”
Claim · model-written summary
Pre-emergence atrazine significantly reduced soil bacteria, fungi and actinomycetes for up to 30 days after spraying.
- Treatment
- PE application of atrazinee0
- Outcome
- soil bacteria, fungi and actinomycetese0
- Direction
- reducede0
- Qualifier
- upto 30 DAHSe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PE application of atrazine exerted a significant detrimental effect on soil bacteria, fungi and actinomycetes and reduced the microbial count in herbicide treated plots upto 30 DAHS”
t0“maize”
Claim · model-written summary
Soil microbial populations began to recover after 30 days following atrazine treatment.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thereafter, microbial population started to recover slowly.”
e1“PE application of atrazine”
t0“maize”
The same questions in other papers
glyphosate · growth · Zea mays (maize)Results differ
12 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 papers →glyphosate · crop injury · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
14 papers more in this group
See all 18 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.