Abstract
Thirty‐six genetically diverse sugarbeet ( Beta vulgaris L.) lines were evaluated to determine their potential resistance to the sugarbeet root maggot, Tetanops myopaeformis Roder . Significant and relatively consistent differences in maggot damage were noted over 3 years. Damage ratings of F 1 crosses of resistant ✕ susceptible lines tended to be intermediate between those of the parents. Selection for high‐ and low‐maggot damage showed a linear trend in increasing and decreasing maggot damage, respectively. The average decline in the low‐damage selection was approximately 5% per cycle. After five cycles of selection, there was no change in the rate of decline, indicating that further selection progress can be made. A greenhouse test confirmed field designations of resistant and susceptible genotypes. A low‐damage inbred had lower maggot survival, smaller maggot weight, lower damage ratings, and greater root weight than a susceptible line.
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Claims 12
Claim · model-written summary
Sugarbeet lines differed significantly in maggot damage.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarise0 - Interactor
- Tetanops myopaeformis RoderTetanops myopaeformise0pest
- Outcome
- maggot damagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty‐six genetically diverse sugarbeet ( Beta vulgaris L.) lines were evaluated to determine their potential resistance to the sugarbeet root maggot, Tetanops myopaeformis Roder . Significant and relatively consistent differences in maggot damage were noted over 3 years”
Claim · model-written summary
F1 crosses had intermediate damage ratings.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Material
- F 1 crossese0
- Outcome
- Damage ratingse0
- Direction
- intermediatee0
- Comparator
- the parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Damage ratings of F 1 crosses of resistant ✕ susceptible lines tended to be intermediate between those of the parents”
t0“Sugarbeet”
Claim · model-written summary
High-damage selection increased maggot damage.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- Selection for high‐e0
- Outcome
- maggot damagee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for high‐ and low‐maggot damage showed a linear trend in increasing and decreasing maggot damage, respectively”
t0“Sugarbeet”
Claim · model-written summary
Low-damage selection decreased maggot damage.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- low‐maggot damagee0
- Outcome
- maggot damagee0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for high‐ and low‐maggot damage showed a linear trend in increasing and decreasing maggot damage, respectively”
t0“Sugarbeet”
Claim · model-written summary
Low-damage selection reduced damage by about 5% per cycle.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- low‐damage selectione0
- Outcome
- damagee0
- Direction
- declinee0
- Value
- 5% per cyclee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average decline in the low‐damage selection was approximately 5% per cycle”
t0“Sugarbeet”
Claim · model-written summary
Damage decline rate was unchanged after five cycles.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- rate of declinee0
- Direction
- no changee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After five cycles of selection, there was no change in the rate of decline”
t0“Sugarbeet”
Claim · model-written summary
A greenhouse test confirmed field resistance designations.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- resistant and susceptible genotypese0
- Comparator
- field designationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse test confirmed field designations of resistant and susceptible genotypes”
t0“Sugarbeet”
Claim · model-written summary
Maggot survival was lower on a low-damage inbred.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Material
- low‐damage inbrede0
- Interactor
- maggote0pest
- Outcome
- maggot survivale0
- Direction
- lowere0
- Comparator
- susceptible linee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low‐damage inbred had lower maggot survival, smaller maggot weight, lower damage ratings, and greater root weight than a susceptible line”
t0“Sugarbeet”
Claim · model-written summary
Maggot weight was smaller on a low-damage inbred.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Material
- low‐damage inbrede0
- Interactor
- maggote0pest
- Outcome
- maggot weighte0
- Direction
- smallere0
- Comparator
- susceptible linee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low‐damage inbred had lower maggot survival, smaller maggot weight, lower damage ratings, and greater root weight than a susceptible line”
t0“Sugarbeet”
Claim · model-written summary
Damage ratings were lower for a low-damage inbred.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Material
- low‐damage inbrede0
- Outcome
- damage ratingse0
- Direction
- lowere0
- Comparator
- susceptible linee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low‐damage inbred had lower maggot survival, smaller maggot weight, lower damage ratings, and greater root weight than a susceptible line”
t0“Sugarbeet”
Claim · model-written summary
Root weight was greater for a low-damage inbred.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Material
- low‐damage inbrede0
- Outcome
- root weighte0
- Direction
- greatere0
- Comparator
- susceptible linee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low‐damage inbred had lower maggot survival, smaller maggot weight, lower damage ratings, and greater root weight than a susceptible line”
t0“Sugarbeet”
Claim · model-written summary
Further selection progress is possible.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- further selection progresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicating that further selection progress can be made”
t0“Sugarbeet”