Abstract
Abstract Concern has been raised about the projected depletion of stratospheric ozone and the resultant increased exposure of crops to ultraviolet (UV)‐B radiation. Studies done in growth chambers and greenhouses indicate that substantial decreases in photosynthetic activity and leaf area growth may result from enhanced exposure to UV‐B radiation. However, for soybean [ Glycine max (L.) Merr.] very few studies have been done under field conditions, and these studies either used unfiltered UV lamps or harvested only a few plants to determine seed yield. The objective of this study was to examine the influence of a 32% enhancement of UV‐B irradiance at Gainesville, FL on the growth and yield under field conditions of six soybean cultivars. No influence of either UV‐A or UV‐B radiation was detected on any growth parameter studied. Leaf area development, internode length, phyllochron index, flowering date, podding date, crop growth rate, and final seed yield were unaffected by enhanced exposure to ultraviolet radiation. These results indicate that soybean crops are not in jeopardy from the projected increase in exposure to ultraviolet radiation.
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Claims 5
Claim · model-written summary
Enhanced ultraviolet exposure did not affect soybean leaf area development or internode length.
- Taxon
- soybean
Glycine maxe1 - Treatment
- enhanced exposure to ultraviolet radiatione0
- Outcome
- Leaf area development, internode lengthe0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf area development, internode length, phyllochron index, flowering date, podding date, crop growth rate, and final seed yield were unaffected by enhanced exposure to ultraviolet radiation.”
e1“six soybean cultivars”
Claim · model-written summary
Enhanced ultraviolet exposure did not affect soybean phyllochron index, flowering date, or podding date.
- Taxon
- soybeanGlycine maxe1
- Treatment
- enhanced exposure to ultraviolet radiatione0
- Outcome
- phyllochron index, flowering date, podding datee0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf area development, internode length, phyllochron index, flowering date, podding date, crop growth rate, and final seed yield were unaffected by enhanced exposure to ultraviolet radiation.”
e1“six soybean cultivars”
Claim · model-written summary
Enhanced ultraviolet exposure did not affect soybean crop growth rate.
- Taxon
- soybeanGlycine maxe1
- Treatment
- enhanced exposure to ultraviolet radiatione0
- Outcome
- crop growth ratee0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop growth rate, and final seed yield were unaffected by enhanced exposure to ultraviolet radiation.”
e1“six soybean cultivars”
Claim · model-written summary
Enhanced ultraviolet exposure did not affect soybean final seed yield.
- Taxon
- soybeanGlycine maxe1
- Treatment
- enhanced exposure to ultraviolet radiatione0
- Outcome
- final seed yielde0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“final seed yield were unaffected by enhanced exposure to ultraviolet radiation.”
e1“six soybean cultivars”
Claim · model-written summary
The authors conclude projected ultraviolet increases do not jeopardize soybean crops.
- Taxon
- soybeanGlycine maxe0
- Outcome
- not in jeopardy from the projected increase in exposure to ultraviolet radiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean crops are not in jeopardy from the projected increase in exposure to ultraviolet radiation”
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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.