Abstract
In field experiments during 1975 to 1977 the final yield of cucumbers (Cucumis sativus L. ‘Salty’) was unaffected when a naturally occurring weed infestation remained in the plots for the first 12 days after emergence in 1975 and for the first 24 days in 1976 and 1977, provided the crop was kept weed-free subsequently. If the cucumbers were kept weed-free for the first 12 days after emergence in 1975, 24 days after emergence in 1976, and 36 days after emergence in 1977, there was no loss of yield caused by weeds that emerged later in the season. The critical period of weed interference was therefore between 12 and 36 days after crop emergence. In other experiments, cucumber yields were reduced significantly when only 5% of the weeds were allowed to remain in the plots longer than 24 days after crop emergence. The percentage of various commercial grades, based on cucumber size, was not altered by weed interference and appeared to be dependent on harvesting frequency.
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Claims 9
Claim · model-written summary
Initial weed infestation for 12 days in 1975 did not affect final cucumber yield if plots were subsequently weed-free.
- Taxon
- cucumbers
Cucumis sativuse0 - Material
- ‘Salty’e0
- Treatment
- weed infestation remained in the plots for the first 12 days after emergence in 1975e0
- Interactor
- weede0weed
- Outcome
- final yielde0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“final yield of cucumbers (Cucumis sativus L. ‘Salty’) was unaffected when a naturally occurring weed infestation remained in the plots for the first 12 days after emergence in 1975 and for the first 24 days in 1976 and 1977, provided the crop was kept weed-free subsequently”
Claim · model-written summary
Initial weed infestation for 24 days in 1976 and 1977 did not affect final cucumber yield if plots were subsequently weed-free.
- Taxon
- cucumbersCucumis sativuse0
- Material
- ‘Salty’e0
- Treatment
- weed infestation remained in the plotse0
- Interactor
- weede0weed
- Outcome
- final yielde0
- Direction
- unaffectede0
- Qualifier
- first 24 days in 1976 and 1977e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“final yield of cucumbers (Cucumis sativus L. ‘Salty’) was unaffected when a naturally occurring weed infestation remained in the plots for the first 12 days after emergence in 1975 and for the first 24 days in 1976 and 1977, provided the crop was kept weed-free subsequently”
Claim · model-written summary
Keeping cucumbers weed-free for 12 days in 1975 prevented yield loss from later weeds.
- Taxon
- cucumbersCucumis sativuse0
- Treatment
- weed-free for the first 12 days after emergence in 1975e0
- Interactor
- weedse0weed
- Outcome
- loss of yield caused by weedse0
- Direction
- no losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumbers were kept weed-free for the first 12 days after emergence in 1975, 24 days after emergence in 1976, and 36 days after emergence in 1977, there was no loss of yield caused by weeds that emerged later in the season”
Claim · model-written summary
Keeping cucumbers weed-free for 24 days in 1976 prevented yield loss from later weeds.
- Taxon
- cucumbersCucumis sativuse0
- Treatment
- weed-freee0
- Interactor
- weedse0weed
- Outcome
- loss of yield caused by weedse0
- Direction
- no losse0
- Qualifier
- 24 days after emergence in 1976e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumbers were kept weed-free for the first 12 days after emergence in 1975, 24 days after emergence in 1976, and 36 days after emergence in 1977, there was no loss of yield caused by weeds that emerged later in the season”
Claim · model-written summary
Keeping cucumbers weed-free for 36 days in 1977 prevented yield loss from later weeds.
- Taxon
- cucumbersCucumis sativuse0
- Treatment
- weed-freee0
- Interactor
- weedse0weed
- Outcome
- loss of yield caused by weedse0
- Direction
- no losse0
- Qualifier
- 36 days after emergence in 1977e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumbers were kept weed-free for the first 12 days after emergence in 1975, 24 days after emergence in 1976, and 36 days after emergence in 1977, there was no loss of yield caused by weeds that emerged later in the season”
Claim · model-written summary
The critical weed interference period was 12 to 36 days after cucumber emergence.
- Taxon
- CucumbersCucumis sativuse0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The critical period of weed interference was therefore between 12 and 36 days after crop emergence”
t0“Pickling Cucumbers”
Claim · model-written summary
Cucumber yields fell significantly when 5% of weeds persisted beyond 24 days.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- 5% of the weeds were allowed to remain in the plots longer than 24 days after crop emergencee0
- Interactor
- weedse0weed
- Outcome
- cucumber yieldse0
- Direction
- reducede0
- Value
- 5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumber yields were reduced significantly when only 5% of the weeds were allowed to remain in the plots longer than 24 days after crop emergence”
Claim · model-written summary
Weed interference did not alter the percentage of cucumber commercial grades.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- weed interferencee0
- Interactor
- weede0weed
- Outcome
- percentage of various commercial gradese0
- Direction
- not alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of various commercial grades, based on cucumber size, was not altered by weed interference”
Claim · model-written summary
Commercial grade percentage appeared dependent on harvesting frequency.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- harvesting frequencye0
- Outcome
- percentage of various commercial gradese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of various commercial grades, based on cucumber size, was not altered by weed interference and appeared to be dependent on harvesting frequency”
The same questions in other papers
herbicide · weed · Cucumis sativus (cucumber)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
5 papers more in this group
See all 9 papers →infection · yield · Cucumis sativus (cucumber)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
5 papers more in this group
See all 9 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.