Abstract
Field experiments were conducted in 1987 and 1988 at Frederick, MD, to determine established horsenettle ( Solanum carolinense L.) interference with snapbean. Horsenettle grown for 3 yr prior to planting snapbeans reduced yield 65% in 1987 and 48% in 1988. Horsenettle established for 1 yr reduced snapbean yield 20 and 18% in 1987 and 1988, respectively. As the distance of the snapbean row from the horsenettle row increased, there was less effect on the yield of snapbean. In 1987, snapbean yield in rows 15, 30, or 60 cm from horsenettle was reduced 43, 29, and 15%, respectively, while during 1988 in the same plots snapbean yields were reduced 38, 26, and 11%. Eight horsenettle planted in a 4.6-m row the first year and 16 horsenettle per row for the second year reduced snapbean yield 36 and 55% respectively. Horsenettle fruit number was 16% lower the first year and 45% lower the second year when snapbeans were grown at a 15-cm row spacing instead of a 60-cm row spacing.
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Claims 11
Claim · model-written summary
Three year established horsenettle reduced snapbean yield by 65% in 1987.
- Taxon
- snapbeanse0
- Treatment
- Horsenettle grown for 3 yre0
- Interactor
- Horsenettlee0weed
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 65%e0
- Qualifier
- 1987e0
Not reportedComparator
Verbatim
e0“Horsenettle grown for 3 yr prior to planting snapbeans reduced yield 65% in 1987 and 48% in 1988.”
Claim · model-written summary
Three year established horsenettle reduced snapbean yield by 48% in 1988.
- Taxon
- snapbeanse0
- Treatment
- Horsenettle grown for 3 yre0
- Interactor
- Horsenettlee0weed
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 48%e0
- Qualifier
- 1988e0
Not reportedComparator
Verbatim
e0“Horsenettle grown for 3 yr prior to planting snapbeans reduced yield 65% in 1987 and 48% in 1988.”
Claim · model-written summary
One year established horsenettle reduced snapbean yield by 20% in 1987.
- Taxon
- snapbeane0
- Treatment
- Horsenettle established for 1 yre0
- Interactor
- Horsenettlee0weed
- Outcome
- snapbean yielde0
- Direction
- reducede0
- Value
- 20e0
- Qualifier
- 1987e0
Not reportedComparator
Verbatim
e0“Horsenettle established for 1 yr reduced snapbean yield 20 and 18% in 1987 and 1988, respectively.”
Claim · model-written summary
One year established horsenettle reduced snapbean yield by 18% in 1988.
- Taxon
- snapbeane0
- Treatment
- Horsenettle established for 1 yre0
- Interactor
- Horsenettlee0weed
- Outcome
- snapbean yielde0
- Direction
- reducede0
- Value
- 18%e0
- Qualifier
- 1988e0
Not reportedComparator
Verbatim
e0“Horsenettle established for 1 yr reduced snapbean yield 20 and 18% in 1987 and 1988, respectively.”
Claim · model-written summary
Greater distance between rows reduced horsenettle effect on snapbean yield.
Verbatim
e0“As the distance of the snapbean row from the horsenettle row increased, there was less effect on the yield of snapbean.”
Claim · model-written summary
In 1987, horsenettle reduced yields by 43%, 29%, and 15% at 15, 30, and 60 cm.
- Taxon
- snapbeane0
- Treatment
- horsenettlee0
- Interactor
- horsenettlee0weed
- Outcome
- snapbean yielde0
- Direction
- reducede0
- Value
- 43, 29, and 15%e0
- Qualifier
- rows 15, 30, or 60 cme0
Not reportedComparator
Verbatim
e0“In 1987, snapbean yield in rows 15, 30, or 60 cm from horsenettle was reduced 43, 29, and 15%, respectively, while during 1988 in the same plots snapbean yields were reduced 38, 26, and 11%.”
Claim · model-written summary
In 1988, horsenettle reduced yields by 38%, 26%, and 11% across the same row distances.
- Taxon
- snapbeane0
- Treatment
- horsenettlee0
- Interactor
- horsenettlee0weed
- Outcome
- snapbean yieldse0
- Direction
- reducede0
- Value
- 38, 26, and 11%e0
- Qualifier
- 1988e0
Not reportedComparator
Verbatim
e0“In 1987, snapbean yield in rows 15, 30, or 60 cm from horsenettle was reduced 43, 29, and 15%, respectively, while during 1988 in the same plots snapbean yields were reduced 38, 26, and 11%.”
Claim · model-written summary
Eight horsenettle plants reduced first year snapbean yield by 36%.
- Taxon
- snapbeane0
- Treatment
- Eight horsenettle planted in a 4.6-m rowe0
- Interactor
- horsenettlee0weed
- Outcome
- snapbean yielde0
- Direction
- reducede0
- Value
- 36e0
- Qualifier
- first yeare0
Not reportedComparator
Verbatim
e0“Eight horsenettle planted in a 4.6-m row the first year and 16 horsenettle per row for the second year reduced snapbean yield 36 and 55% respectively.”
Claim · model-written summary
Sixteen horsenettle plants reduced second year snapbean yield by 55%.
- Taxon
- snapbeane0
- Treatment
- 16 horsenettle per rowe0
- Interactor
- horsenettlee0weed
- Outcome
- snapbean yielde0
- Direction
- reducede0
- Value
- 55%e0
- Qualifier
- second yeare0
Not reportedComparator
Verbatim
e0“Eight horsenettle planted in a 4.6-m row the first year and 16 horsenettle per row for the second year reduced snapbean yield 36 and 55% respectively.”
Claim · model-written summary
Snapbeans at 15 rather than 60 cm spacing lowered horsenettle fruit number by 16% in the first year.
Verbatim
e0“Horsenettle fruit number was 16% lower the first year and 45% lower the second year when snapbeans were grown at a 15-cm row spacing instead of a 60-cm row spacing.”
Claim · model-written summary
Snapbeans at 15 rather than 60 cm spacing lowered horsenettle fruit number by 45% in the second year.
Verbatim
e0“Horsenettle fruit number was 16% lower the first year and 45% lower the second year when snapbeans were grown at a 15-cm row spacing instead of a 60-cm row spacing.”