Abstract
The effect of glyphosate on floral organ morphology structure and gamete fertility of transgenic glyphosate-resistant cotton germplasms with EPSPS-G6 were studies,with the germplasms were treated with different glyphosate concentration started from squaring stage.The results showed that there were not obvious damage on the growth and development of the transgenic germplasms by the treatment of glyphosate before squaring stage,but serious flower characters and male sterility,such as small flowers,short stigmas,wizened and indehiscent anthers etc.,when they were treated with glyphosate after squaring stage,especially with the high concentration(30 mmol·L-1).Pollen fertility identification showed that male gametes abortion was started in 15 days for high concentration,or 20 days for low concentration(20 mmol·L-1) after the treatment.The period of male gametes abortion continued for more than 20 days,and much longer for the higher concentration glyphosate.The results of different treatment intervals with different concentrations showed that male gametes abortion could continue in the whole growth period when they were treated every 20 days.The experiment result found that the transgenic cotton germplasms with EPSPS-G6 could be used as female parent without artificial emasculation to produce hybrid cottonseeds,as long as they were treated by 20 mmol·L-1 glyphosate with every 15 days(another 5 days delay if the weather was unallowed for spraying) for 4 times,started from squaring stage.
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Claims 8
Claim · model-written summary
Glyphosate before squaring caused no obvious growth or development damage.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- treatment of glyphosate before squaring stagee0
- Gene
- EPSPS-G6t0
- Outcome
- growth and developmente0
- Direction
- not obvious damagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were not obvious damage on the growth and development of the transgenic germplasms by the treatment of glyphosate before squaring stage”
t0“Effect of Glyphosate on the Gamete Fertility of Transgenic Glyphosate-resistant Cotton Germplasms with EPSPS-G6”
Claim · model-written summary
Glyphosate after squaring caused abnormal flowers and male sterility, especially at 30 mmol·L-1.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- glyphosate after squaring stagee0
- Gene
- EPSPS-G6t0
- Outcome
- serious flower characters and male sterilitye0
- Value
- 30 mmol·L-1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but serious flower characters and male sterility,such as small flowers,short stigmas,wizened and indehiscent anthers etc.,when they were treated with glyphosate after squaring stage,especially with the high concentration(30 mmol·L-1).”
t0“Effect of Glyphosate on the Gamete Fertility of Transgenic Glyphosate-resistant Cotton Germplasms with EPSPS-G6”
Claim · model-written summary
High concentration glyphosate led to male gamete abortion 15 days after treatment.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- high concentratione0
- Outcome
- male gametes abortione0
- Value
- 15 dayse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“male gametes abortion was started in 15 days for high concentration,or 20 days for low concentration(20 mmol·L-1) after the treatment.”
t0“Cotton”
Claim · model-written summary
Low concentration glyphosate led to male gamete abortion 20 days after treatment.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- low concentration(20 mmol·L-1)e0
- Outcome
- male gametes abortione0
- Value
- 20 dayse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“male gametes abortion was started in 15 days for high concentration,or 20 days for low concentration(20 mmol·L-1) after the treatment.”
t0“Cotton”
Claim · model-written summary
Male gamete abortion continued more than 20 days.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- period of male gametes abortione0
- Value
- more than 20 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The period of male gametes abortion continued for more than 20 days,and much longer for the higher concentration glyphosate.”
t0“Cotton”
Claim · model-written summary
Male gamete abortion lasted longer at higher glyphosate concentration.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- higher concentration glyphosatee0
- Outcome
- period of male gametes abortione0
- Direction
- much longere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The period of male gametes abortion continued for more than 20 days,and much longer for the higher concentration glyphosate.”
t0“Cotton”
Claim · model-written summary
Treatment every 20 days sustained male gamete abortion throughout growth.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- treated every 20 dayse0
- Outcome
- male gametes abortione0
- Qualifier
- whole growth periode0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“male gametes abortion could continue in the whole growth period when they were treated every 20 days.”
t0“Cotton”
Claim · model-written summary
The authors propose EPSPS-G6 cotton as a female parent without emasculation after four 20 mmol·L-1 glyphosate applications every 15 days from squaring.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 20 mmol·L-1 glyphosate with every 15 dayse0
- Gene
- EPSPS-G6e0
- Outcome
- used as female parent without artificial emasculation to produce hybrid cottonseedse0
- Qualifier
- for 4 times,started from squaring stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transgenic cotton germplasms with EPSPS-G6 could be used as female parent without artificial emasculation to produce hybrid cottonseeds,as long as they were treated by 20 mmol·L-1 glyphosate with every 15 days(another 5 days delay if the weather was unallowed for spraying) for 4 times,started from squaring stage.”
t0“Cotton”
The same questions in other papers
glyphosate · growth · Gossypium hirsutum (cotton)Results differ
8 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 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.