Abstract
The ability to adapt, survive, and compete with weeds of transgenic plants is the necessary evaluation content to release transgenic lines in target regions. We compared weediness and agronomic traits of transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58 in the wasteland and cultivated field under natural conditions for two consecutive years. The results showed that there was no significant difference identified in the species, quantity, and relative coverage ratio (RCR) of weeds between fields with G1F-8, G1F-19, and Zheng 58, regardless of the sowing pattern in the wasteland. Compared with the vigour of weeds, none of G1F-8, G1F-19, and Zheng 58 showed survival advantages, and all showed weak growth potential with no final grain yield. Meanwhile, no volunteer seedlings were found upon investigation in the following year. The simulated seed overwintering experiment in the wasteland further showed that the three kinds of maize could not germinate in the second year. In cultivated land, G1F-8 and G1F-19 had the same growth stages, plant height, and RCR as Zheng 58 throughout two years. In conclusion, the transgenic lines G1F-8 and G1F-19 exhibited no adaptability risk in Gongzhuling, Jilin, China.
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Claims 7
Claim · model-written summary
Transgenic maize lines G1F-8 and G1F-19 did not differ significantly from the near-isogenic line Zheng 58 in the species, quantity and relative coverage ratio of weeds in fields.
- Treatment
- transgenic maize lines G1F-8 and G1F-19e1
- Interactor
- weedse0weed
- Outcome
- species, quantity, and relative coverage ratio (RCR) of weedse0
- Direction
- no significant differencee0
- Comparator
- Zheng 58e0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference identified in the species, quantity, and relative coverage ratio (RCR) of weeds between fields with G1F-8, G1F-19, and Zheng 58”
e1“transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58”
Claim · model-written summary
None of G1F-8, G1F-19 or Zheng 58 maize showed survival advantages compared with the vigour of weeds.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the vigour of weeds, none of G1F-8, G1F-19, and Zheng 58 showed survival advantages”
e1“transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58”
Claim · model-written summary
All three maize lines showed weak growth potential with no final grain yield in the wasteland.
- Outcome
- weak growth potential with no final grain yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all showed weak growth potential with no final grain yield”
e1“transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58”
Claim · model-written summary
No volunteer maize seedlings were found in the year following the experiment.
- Outcome
- volunteer seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“no volunteer seedlings were found upon investigation in the following year”
Claim · model-written summary
In the simulated seed overwintering experiment in the wasteland, the three kinds of maize could not germinate in the second year.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The simulated seed overwintering experiment in the wasteland further showed that the three kinds of maize could not germinate in the second year”
Claim · model-written summary
In cultivated land, G1F-8 and G1F-19 had the same growth stages, plant height and RCR as Zheng 58 over two years.
- Treatment
- transgenic maize lines G1F-8 and G1F-19e1
- Outcome
- growth stages, plant height, and RCRe0
- Direction
- samee0
- Comparator
- Zheng 58e0
- Setting
- cultivated lande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cultivated land, G1F-8 and G1F-19 had the same growth stages, plant height, and RCR as Zheng 58 throughout two years”
e1“transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58”
Claim · model-written summary
The authors conclude that transgenic lines G1F-8 and G1F-19 exhibited no adaptability risk in Gongzhuling, Jilin, China.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“the transgenic lines G1F-8 and G1F-19 exhibited no adaptability risk in Gongzhuling, Jilin, China”
The same questions in other papers
transgenic · growth · Zea mays (maize)Positive and negative results
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