Abstract
Plants grown under physicochemical stresses frequently become more susceptible to insects. We determined the effects of salinity stress at 1.0 and 1.2 S/m electrical conductivity on the magnitude and expression of resistance of rice ( Oryza sativa L.) cultivars to Sogatella furcifera (Horváth) under glasshouse conditions using natural daylight of 12 h, 29/21 °C (day/night), and minimum 70% relative humidity. Salinity stress increased N, decreased K, and decreased the quantity of allelochemicals extracted as steam distillates from rice plants. Intake and assimilation of food, growth, adult longevity, fecundity, and population increase of the insect were significantly greater on plants grown at salinity level of 1.2 S/m than on unstressed control plants. Regardless of the level of stress, the difference between susceptibility of ‘Taichung Native 1’ (TN1) and resistance of ‘IR2035‐117‐3’ (IR2035) cultivars remained distinct. Painting of steam‐distillate extract of resistant IR2035 plants on susceptible TN1 plants made them less attractive and decreased food intake and assimilation by S. furcifera . In contrast, intake and assimilation of food increased significantly on IR2035 plants painted with TN1 extract. Effects of Physicochemical stresses, such as salinity, must be considered when breeding insect‐resistant rice cultivars for salinity‐prone areas.
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Claims 11
Claim · model-written summary
Salinity increased rice nitrogen content.
- Taxon
- rice
Oryza sativat0 - Treatment
- Salinity stresse0
- Outcome
- Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity stress increased N”
t0“Rice”
Claim · model-written summary
Salinity decreased rice potassium content.
- Taxon
- riceOryza sativat0
- Treatment
- Salinity stresse1
- Outcome
- Ke0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased K”
t0“Rice”
e1“Salinity stress increased N”
Claim · model-written summary
Salinity decreased the quantity of steam distillate allelochemicals in rice.
- Taxon
- riceOryza sativae0
- Treatment
- Salinity Stresst0
- Outcome
- quantity of allelochemicalse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased the quantity of allelochemicals extracted as steam distillates from rice plants”
t0“Salinity Stress”
Claim · model-written summary
Planthopper food intake and assimilation were greater on rice at 1.2 S/m salinity than controls.
- Taxon
- riceOryza sativat0
- Treatment
- salinity level of 1.2 S/me0
- Outcome
- Intake and assimilation of foode0
- Direction
- greatere0
- Comparator
- unstressed control plantse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intake and assimilation of food, growth, adult longevity, fecundity, and population increase of the insect were significantly greater on plants grown at salinity level of 1.2 S/m than on unstressed control plants”
t0“Rice”
Claim · model-written summary
Planthopper growth, longevity and fecundity were greater on rice at 1.2 S/m salinity.
- Taxon
- riceOryza sativat0
- Treatment
- salinity level of 1.2 S/me0
- Outcome
- growth, adult longevity, fecunditye0
- Direction
- greatere0
- Comparator
- unstressed control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth, adult longevity, fecundity, and population increase of the insect were significantly greater on plants grown at salinity level of 1.2 S/m than on unstressed control plants”
t0“Rice”
Claim · model-written summary
Planthopper population increase was greater on salinity stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- salinity level of 1.2 S/me0
- Outcome
- population increase of the insecte0
- Direction
- greatere0
- Comparator
- unstressed control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“population increase of the insect were significantly greater on plants grown at salinity level of 1.2 S/m than on unstressed control plants”
t0“Rice”
Claim · model-written summary
TN1 remained susceptible and IR2035 resistant regardless of stress.
- Taxon
- riceOryza sativat0
- Material
- ‘Taichung Native 1’ (TN1)e0
- Outcome
- difference between susceptibilitye0
- Comparator
- ‘IR2035‐117‐3’ (IR2035)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of the level of stress, the difference between susceptibility of ‘Taichung Native 1’ (TN1) and resistance of ‘IR2035‐117‐3’ (IR2035) cultivars remained distinct”
t0“Rice”
Claim · model-written summary
IR2035 extract made TN1 plants less attractive to planthoppers.
- Taxon
- riceOryza sativat0
- Material
- TN1e0
- Treatment
- steam‐distillate extract of resistant IR2035 plantse0
- Outcome
- less attractivee0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Painting of steam‐distillate extract of resistant IR2035 plants on susceptible TN1 plants made them less attractive”
t0“Rice”
Claim · model-written summary
IR2035 extract decreased planthopper intake and assimilation on TN1.
- Taxon
- riceOryza sativat0
- Interactor
- S. furciferaSogatella furciferae0pest
- Outcome
- food intake and assimilation by S. furciferae0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased food intake and assimilation by S. furcifera”
t0“Rice”
Claim · model-written summary
TN1 extract increased planthopper food intake and assimilation on IR2035.
- Taxon
- riceOryza sativat0
- Material
- IR2035e0
- Treatment
- TN1 extracte0
- Outcome
- intake and assimilation of foode0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intake and assimilation of food increased significantly on IR2035 plants painted with TN1 extract”
t0“Rice”
Claim · model-written summary
Authors recommend accounting for salinity when breeding planthopper resistant rice for saline areas.
- Taxon
- riceOryza sativat0
- Outcome
- considered when breeding insect‐resistant rice cultivars for salinity‐prone arease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of Physicochemical stresses, such as salinity, must be considered when breeding insect‐resistant rice cultivars for salinity‐prone areas”
t0“Rice”
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See all 86 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.