Abstract
It is increasingly concerned whether the introduction of transgenes can influence the ecological fitness of receptor crop. Thereby,outdoor experiments were conducted to examine impacts of varying densities of brown planthopper( BPH),Nilaparvata lugens,( 0,10,20,40,80,100,200individuals per cage) on the yield parameters of transgenic cry1Ab rice( B4b92) and its non-transgenic isoline( MH86) in Fuzhou,Southeast China. The results showed that,within each BPH density treatment,the yield parameters of B4b92 were not significantly different compared with those of MH86,except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatments. Regression analysis indicated that there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties. With the increase of density of BPH,the percentage of yield loss of B4b92 tended to be gradually getting higher than that of MH 86. Our work provides a valuable foundation for better understanding and evaluating potential effects of non- target pests on the ecological fitness of transgenic rice.
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Claims 11
Claim · model-written summary
Most yield parameters did not differ significantly between B4b92 and MH86 within planthopper density treatments.
- Taxon
- rice
Oryza sativat0 - Material
- B4b92e0
- Treatment
- BPH density treatmente0
- Outcome
- yield parameterse0
- Direction
- not significantly differente0
- Qualifier
- except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatmentse0
- Comparator
- MH86e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“within each BPH density treatment,the yield parameters of B4b92 were not significantly different compared with those of MH86,except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatments”
t0“rice”
Claim · model-written summary
Grains per ear differed between B4b92 and MH86 in some planthopper density treatments.
- Taxon
- riceOryza sativat0
- Material
- B4b92e1
- Treatment
- BPH density treatmentse0
- Outcome
- grains per eare0
- Comparator
- MH86e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatments”
t0“rice”
e1“yield parameters of B4b92 were not significantly different compared with those of MH86”
Claim · model-written summary
Full grains per ear differed between B4b92 and MH86 in some planthopper density treatments.
- Taxon
- riceOryza sativat0
- Material
- B4b92e1
- Treatment
- BPH density treatmentse0
- Outcome
- full grains per eare0
- Comparator
- MH86e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatments”
t0“rice”
e1“yield parameters of B4b92 were not significantly different compared with those of MH86”
Claim · model-written summary
Number of ears differed between B4b92 and MH86 in some planthopper density treatments.
- Taxon
- riceOryza sativat0
- Material
- B4b92e1
- Treatment
- BPH density treatmentse0
- Outcome
- number of earse0
- Comparator
- MH86e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except the grains per ear,the full grains per ear,and the number of ears within some BPH density treatments”
t0“rice”
e1“yield parameters of B4b92 were not significantly different compared with those of MH86”
Claim · model-written summary
Grains per ear had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- grains per eare0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
Full grains per ear had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- full grains per eare0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
Thousand seed weight had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- 1000- seeds weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
Number of ears had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- number of earse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
Yield had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- yieldse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
Yield loss percentage had a significant linear relationship with BPH density in each rice variety.
- Taxon
- riceOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- yield loss percentagese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant linear relationship between the parameters( grains per ear,full grains per ear,1000- seeds weight,number of ears,yields and yield loss percentages) and the density of BPH for each of the tested rice varieties”
Claim · model-written summary
As BPH density rose, yield loss of B4b92 tended to exceed that of MH 86.
- Taxon
- riceOryza sativat0
- Material
- B4b92e0
- Interactor
- BPHe0pest
- Outcome
- percentage of yield losse0
- Direction
- highere0
- Comparator
- MH 86e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of density of BPH,the percentage of yield loss of B4b92 tended to be gradually getting higher than that of MH 86”
t0“rice”
The same questions in other papers
Nilaparvata lugens · yield · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- no effect
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.