Abstract
Soybean [ Glycine max (L.) Merr.] is usually grown under water deficit conditions in the southern USA and is often attacked by defoliating insects. Field studies were conducted during a 2‐yr period with ‘Centennial’ (insect susceptible) and D75‐10169 (insect resistant) bean genotypes. Plants were grown either with or without irrigation to determine the influence of water‐stressed plants on soybean looper [ Pseudoplusia includens [(Walker)] oviposition, development, survival, and damage to plants. There were no significant ( P < 0.05) differences in egg deposition on the two plant genotypes, and effect of irrigation on egg deposition was not consistent. At 2 wk after insect release on plants, neither genotype nor irrigation treatment significantly affected number of larvae. Larvae developing on nonirrigated plants of both genotypes were significantly smaller than those developing on irrigated plants. All surviving larvae on Centennial pupated and all larvae on D75‐10169 died by 18 d after the onset of oviposition. Defoliation by insects of irrigated plants of both genotypes was more than 50% greater than defoliation of nonirrigated plants. Without insects, seed yields of the two genotypes were similar and were greater from irrigated than from nonirrigated plants. Insect infestation significantly reduced yield of both genotypes, but the decrease in Centennial yield was greater. Yield reduction resulting from insect infestations was greater for irrigated than for nonirrigated plants. These findings show that soybean plants growing under water deficit conditions may allow a delay in initiation of soybean looper control measures, especially since yield potential and resulting profit potential are low.
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Claims 13
Claim · model-written summary
Egg deposition did not differ significantly between the two soybean genotypes.
- Taxon
- Soybean
Glycine maxt0 - Material
- two plant genotypese1
- Interactor
- Pseudoplusia includens
Chrysodeixis includense0pest - Outcome
- egg depositione1
- Direction
- no significante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e1“There were no significant ( P < 0.05) differences in egg deposition on the two plant genotypes”
e0“Pseudoplusia includens”
Claim · model-written summary
The effect of irrigation on egg deposition was not consistent.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- irrigatione2
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- egg depositione2
- Direction
- not consistente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e2“effect of irrigation on egg deposition was not consistent”
e0“Pseudoplusia includens”
Claim · model-written summary
Neither genotype nor irrigation significantly affected the number of larvae 2 weeks after insect release.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- irrigation treatmente3
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- number of larvaee3
- Direction
- significantly affectede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e3“neither genotype nor irrigation treatment significantly affected number of larvae”
e0“Pseudoplusia includens”
Claim · model-written summary
Larvae developing on nonirrigated plants of both genotypes were significantly smaller than those on irrigated plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- nonirrigated plantse4
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- Larvae developinge4
- Direction
- significantly smallere4
- Comparator
- irrigated plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e4“Larvae developing on nonirrigated plants of both genotypes were significantly smaller than those developing on irrigated plants”
e0“Pseudoplusia includens”
Claim · model-written summary
All surviving larvae on Centennial pupated.
- Taxon
- SoybeanGlycine maxt0
- Material
- Centenniale5
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- surviving larvaee5
- Direction
- pupatede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e5“All surviving larvae on Centennial pupated and all larvae on D75‐10169 died by 18 d after the onset of oviposition”
e0“Pseudoplusia includens”
Claim · model-written summary
All larvae on D75‐10169 died by 18 days after the onset of oviposition.
- Taxon
- SoybeanGlycine maxt0
- Material
- D75‐10169e5
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- larvaee5
- Direction
- diede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e5“All surviving larvae on Centennial pupated and all larvae on D75‐10169 died by 18 d after the onset of oviposition”
e0“Pseudoplusia includens”
Claim · model-written summary
Insect defoliation of irrigated plants was more than 50% greater than of nonirrigated plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- irrigated plantse6
- Outcome
- Defoliatione6
- Direction
- greatere6
- Value
- more than 50%e6
- Comparator
- nonirrigated plantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e6“Defoliation by insects of irrigated plants of both genotypes was more than 50% greater than defoliation of nonirrigated plants”
Claim · model-written summary
Without insects, seed yields of the two genotypes were similar.
- Taxon
- SoybeanGlycine maxt0
- Material
- the two genotypese7
- Outcome
- seed yieldse7
- Direction
- similare7
- Qualifier
- Without insectse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e7“Without insects, seed yields of the two genotypes were similar and were greater from irrigated than from nonirrigated plants”
Claim · model-written summary
Without insects, seed yields were greater from irrigated than from nonirrigated plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- irrigatede7
- Outcome
- seed yieldse7
- Direction
- greatere7
- Qualifier
- Without insectse7
- Comparator
- nonirrigated plantse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e7“Without insects, seed yields of the two genotypes were similar and were greater from irrigated than from nonirrigated plants”
Claim · model-written summary
Insect infestation significantly reduced soybean yield in both genotypes.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Insect infestatione1
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- yielde1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e1“Insect infestation significantly reduced yield of both genotypes, but the decrease in Centennial yield was greater”
e0“Pseudoplusia includens”
Claim · model-written summary
The yield decrease from insect infestation was greater in Centennial than in the other genotype.
- Taxon
- SoybeanGlycine maxt0
- Material
- Centenniale1
- Treatment
- Insect infestatione1
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- decrease in Centennial yielde1
- Direction
- greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e1“Insect infestation significantly reduced yield of both genotypes, but the decrease in Centennial yield was greater”
e0“Pseudoplusia includens”
Claim · model-written summary
Yield reduction from insect infestation was greater for irrigated than for nonirrigated plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- irrigatede2
- Interactor
- Pseudoplusia includensChrysodeixis includense0pest
- Outcome
- Yield reductione2
- Direction
- greatere2
- Comparator
- nonirrigated plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e2“Yield reduction resulting from insect infestations was greater for irrigated than for nonirrigated plants”
e0“Pseudoplusia includens”
Claim · model-written summary
Soybean under water deficit may allow a delay in initiating soybean looper control measures.
- Taxon
- soybean plantsGlycine maxe3
- Outcome
- delay in initiation of soybean looper control measurese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of Selected Soybean Genotypes to Soybean Looper”
e3“soybean plants growing under water deficit conditions may allow a delay in initiation of soybean looper control measures”
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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.