Abstract
t The impacts of two Bt transgenic rice lines TT9-3 and TT9-4 both of them contain a heterozygous gene of crylAb + crylAc from Bacillus thuringiensis, on the field population dynamics of Sogatella furcifera and Nephotettix cincticeps, as well as dominant spider species were evaluated. The results showed that there were no significant differences between the densities of adult S. furcifera/N. cincticeps in the plots of the two Bt rice Knes and their parental control (IR72) during the whole growing season of rice. In TT9-3 plots, both the nymph densities of S. furcifera in early-middle season and N. cincticeps in middle-late season were significantly higher than those of the control . Contrarily, there were no significant differences between the nymph densities of the two pests on TT9-4 and its control variety. In TT9-3 and TT9-4 plots, the population dynamics of five dominant spider species, namely, Tetragnatha maxillosa, Dyschiriognatha quadrimaculata, Ummeliata insecticeps , Pardosa pseudoannulata and Pirata subpiraticus, were similar to those in control field, among most of the densities of these spiders showed no significant differences. It was indicated that, overall, the two Bt rice lines show no adverse effects on dominant spider species in rice paddies.
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Claims 6
Claim · model-written summary
Adult S. furcifera density did not differ significantly between Bt rice and IR72 plots.
- Taxon
- rice
Oryza sativae0 - Material
- two Bt rice Knese0
- Treatment
- two Bt rice Knese0
- Interactor
- S. furciferaSogatella furciferae0pest
- Outcome
- densities of adult S. furciferae0
- Direction
- no significant differencese0
- Comparator
- IR72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the densities of adult S. furcifera/N. cincticeps in the plots of the two Bt rice Knes and their parental control (IR72) during the whole growing season of rice”
Claim · model-written summary
Adult N. cincticeps density did not differ significantly between Bt rice and IR72 plots.
- Taxon
- riceOryza sativae0
- Treatment
- two Bt rice Knese0
- Interactor
- N. cincticeps
Nephotettix cincticepse0pest - Outcome
- densities of adult S. furcifera/N. cincticepse0
- Direction
- no significant differencese0
- Comparator
- IR72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the densities of adult S. furcifera/N. cincticeps in the plots of the two Bt rice Knes and their parental control (IR72) during the whole growing season of rice”
Claim · model-written summary
TT9-3 plots had significantly higher early-middle season S. furcifera nymph densities than controls.
- Taxon
- riceOryza sativat0
- Treatment
- TT9-3e0
- Interactor
- S. furciferaSogatella furciferae0pest
- Outcome
- nymph densities of S. furciferae0
- Direction
- highere0
- Qualifier
- early-middle seasone0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In TT9-3 plots, both the nymph densities of S. furcifera in early-middle season and N. cincticeps in middle-late season were significantly higher than those of the control”
t0“Effects of Bt transgenic rice”
Claim · model-written summary
TT9-3 plots had significantly higher middle-late season N. cincticeps nymph densities than controls.
- Taxon
- riceOryza sativat0
- Treatment
- TT9-3e0
- Interactor
- N. cincticepsNephotettix cincticepse0pest
- Outcome
- N. cincticeps in middle-late seasone0
- Direction
- highere0
- Qualifier
- middle-late seasone0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In TT9-3 plots, both the nymph densities of S. furcifera in early-middle season and N. cincticeps in middle-late season were significantly higher than those of the control”
t0“Effects of Bt transgenic rice”
Claim · model-written summary
TT9-4 did not differ significantly from controls in nymph densities of the two pests.
- Taxon
- riceOryza sativat0
- Treatment
- TT9-4e0
- Outcome
- nymph densities of the two pestse0
- Direction
- no significant differencese0
- Comparator
- control varietye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the nymph densities of the two pests on TT9-4 and its control variety”
t0“Effects of Bt transgenic rice”
Claim · model-written summary
Spider population dynamics in both Bt lines resembled control fields and most densities did not differ significantly.
- Taxon
- riceOryza sativat0
- Treatment
- TT9-3 and TT9-4e0
- Outcome
- population dynamics of five dominant spider speciese0
- Direction
- similar toe0
- Qualifier
- most of the densities of these spiders showed no significant differencese0
- Comparator
- control fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In TT9-3 and TT9-4 plots, the population dynamics of five dominant spider species, namely, Tetragnatha maxillosa, Dyschiriognatha quadrimaculata, Ummeliata insecticeps , Pardosa pseudoannulata and Pirata subpiraticus, were similar to those in control field, among most of the densities of these spiders showed no significant differences”
t0“Effects of Bt transgenic rice”
The same questions in other papers
transgenic · Nephotettix cincticeps · Oryza sativa (rice)Positive and negative results
1 reporting no difference from an alternative
- positive
transgenic · Sogatella furcifera · Oryza sativa (rice)Positive and negative results
1 reporting no difference from an alternative
- positive
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.