Abstract
Very low doses of irradiation have been reported to cause stimulatory or hormesis effects on plants. Irradiating the seed has been reported to improve emergence, and this would be a benefit for valuable, field-seeded crops. Over 3 yr, irradiation significantly increased the first emergence counts of broccoli, by about twofold, and the time to 50% of final emergence was advanced by about 1 d. In 1 yr trials, 50% of final emergence was advanced by 3 d for parsnip, but there was no effect for cauliflower. After emergence was complete, all plots were thinned and there were seldom any significant hormesis effects on yield parameters.Key words: X-ray, emergence, vigor, ionizing radiation, cole crop
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Claims 5
Claim · model-written summary
Irradiation doubled first emergence counts of broccoli over three years.
- Taxon
- broccoli
Brassica oleracea var. italicae0 - Treatment
- irradiatione0
- Outcome
- first emergence countse0
- Direction
- increasede0
- Value
- about twofolde0
- Qualifier
- Over 3 yre0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Over 3 yr, irradiation significantly increased the first emergence counts of broccoli, by about twofold”
t0“RADIATION HORMESIS OF FIELD-SEEDED BROCCOLI, PARSNIP AND CAULIFLOWER”
Claim · model-written summary
Irradiation advanced the time to 50% of final broccoli emergence by about one day.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- RADIATIONt0
- Outcome
- time to 50% of final emergencee0
- Direction
- advancede0
- Value
- about 1 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the time to 50% of final emergence was advanced by about 1 d”
t0“RADIATION HORMESIS OF FIELD-SEEDED BROCCOLI, PARSNIP AND CAULIFLOWER”
Claim · model-written summary
Irradiation advanced the time to 50% of final parsnip emergence by three days in a one-year trial.
- Taxon
- parsnip
Pastinaca sativae0 - Treatment
- RADIATIONt0
- Outcome
- 50% of final emergencee0
- Direction
- advancede0
- Value
- 3 de0
- Qualifier
- In 1 yr trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1 yr trials, 50% of final emergence was advanced by 3 d for parsnip”
t0“RADIATION HORMESIS OF FIELD-SEEDED BROCCOLI, PARSNIP AND CAULIFLOWER”
Claim · model-written summary
Irradiation had no reported effect on cauliflower emergence in the one-year trial.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Treatment
- RADIATIONt0
- Outcome
- effecte0
- Direction
- no effecte0
Not reportedComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but there was no effect for cauliflower”
t0“RADIATION HORMESIS OF FIELD-SEEDED BROCCOLI, PARSNIP AND CAULIFLOWER”
Claim · model-written summary
Seed irradiation seldom had significant effects on yield parameters after emergence and thinning.
- Taxon
- BROCCOLI, PARSNIP AND CAULIFLOWERt0
- Treatment
- RADIATIONt0
- Outcome
- yield parameterse0
- Direction
- seldom any significant hormesis effectse0
- Qualifier
- After emergence was completee0
Not reportedComparator
Verbatim
e0“After emergence was complete, all plots were thinned and there were seldom any significant hormesis effects on yield parameters”
t0“RADIATION HORMESIS OF FIELD-SEEDED BROCCOLI, PARSNIP AND CAULIFLOWER”
The same questions in other papers
radiation · yield · Brassica oleracea (wild cabbage)Positive and negative results
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- positive
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radiation · growth · Brassica oleracea (wild cabbage)Positive and negative results
6 papers in the same direction as this paper · 7 in the opposite direction
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10 papers more in this group
See all 14 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.