Claim · model-written summary
Aphid-damaged seeds had a shorter mean emergence period, indicating faster germination.
- Taxon
- Lettuce
Lactuca sativat1 - Material
- aphid-damaged seedse0
- Outcome
- mean emergence period of the aphid-damaged seedse0
- Direction
- decreasee0
Verbatim
e0“there was a decrease in the mean emergence period of the aphid-damaged seeds, indicating a more rapid germination”
t1“Lettuce Seed Plants”
Title
Control of Macrosiphum barri Essig and Its Damage to Lettuce Seed Plants
Elmer C. Carlson Journal of Economic Entomology 1959. doi:10.1093/jee/52.3.411
Other claims from this paper (11)
- Intervention effect Repeated insecticides controlled lettuce seed stem aphid infestations.
- Intervention effect Those insecticides significantly reduced two-spotted spider mite infestation.
- Intervention effect The insecticides did not adequately reduce lettuce mosaic.
- Intervention effect Repeated parathion sprays and dusts tripled lettuce seed yield.
- Intervention effect The parathion yield exceeded other treatments significantly and was economically satisfactory.
- Intervention effect Treatments significantly increased lettuce seed weight and size.
- Association Aphids reduced seed yield about 66% in untreated plots.
- Intervention effect Artificial aphid infestation caused as much as 59% lettuce seed loss in field cages.
- Association Aphid feeding significantly reduced the number of normal seedlings.
- Association Aphid-damaged seeds produced seedlings with significantly more cotyledon damage.
- Observation The aphid was identified as a cause of red cotyledon in lettuce seedlings.