Abstract
Effect of enhanced ultraviolet B radiation (280～320 nm), stimulating 20% stratospheric ozone depletion on clear summer day at Lanzhou, on growth, phenology, photosynthetic pigments and yields of 10 soybean cultivars ( Glycine max (L.)Merr.)under field conditions were investigted. The results showed: (1) Increased UV B irradiance changed flowering time in some cultivars. (2) contents of chlorophyll a and b and carotenoids were decrease in many cultivars, and all cultivars showed enhanced content of flavonoids. (3) Increment of UV B decreased soybean height, dry weight of root, shoot and leaves, total leaves number and total leaf area in all cultivars. Ratio of root against above parts was changed by UV B. (4) The yields was dropped under enhancement of UV B irradiance, 100 grain weight, however, varyed at different directions. (5) Sensitivity analyses against enhanced UV B radiation, Sensitivity Index (SI), indicated that cultivars 8907 32(SI=-33.9) was the most susceptive one in 10 soybean cultivars while Longjian 98 01 (SI=-16.4) the lowest one.
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Claims 9
Claim · model-written summary
Enhanced UV B changed flowering time in some soybean cultivars.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Increased UV B irradiancee0
- Outcome
- flowering timee0
- Direction
- changede0
- Qualifier
- some cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased UV B irradiance changed flowering time in some cultivars.”
t0“Soybean”
Claim · model-written summary
Enhanced UV B decreased chlorophyll a, chlorophyll b and carotenoid content in many cultivars.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- UV Be1
- Outcome
- contents of chlorophyll a and b and carotenoidse0
- Direction
- decreasee0
- Qualifier
- many cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contents of chlorophyll a and b and carotenoids were decrease in many cultivars”
t0“Soybean”
t1“Ultraviolet B Radiation”
e1“Increased UV B irradiance changed flowering time in some cultivars.”
Claim · model-written summary
Enhanced UV B increased flavonoid content in all soybean cultivars.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- UV Be1
- Outcome
- content of flavonoidse0
- Direction
- enhancede0
- Qualifier
- all cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all cultivars showed enhanced content of flavonoids”
t0“Soybean”
t1“Ultraviolet B Radiation”
e1“Increased UV B irradiance changed flowering time in some cultivars.”
Claim · model-written summary
Enhanced UV B reduced soybean height, root, shoot and leaf dry weight, leaf number and leaf area in all cultivars.
- Taxon
- soybeanGlycine maxe0
- Treatment
- UV Be0
- Outcome
- soybean height, dry weight of root, shoot and leaves, total leaves number and total leaf areae0
- Direction
- decreasede0
- Qualifier
- all cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increment of UV B decreased soybean height, dry weight of root, shoot and leaves, total leaves number and total leaf area in all cultivars.”
Claim · model-written summary
UV B changed the ratio of soybean root to aboveground parts.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- UV Be0
- Outcome
- Ratio of root against above partse0
- Direction
- changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ratio of root against above parts was changed by UV B.”
t0“Soybean”
Claim · model-written summary
Enhanced UV B reduced soybean yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- UV B irradiancee0
- Outcome
- yieldse0
- Direction
- droppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yields was dropped under enhancement of UV B irradiance”
t0“Soybean”
Claim · model-written summary
Soybean 100 grain weight varied in different directions under enhanced UV B.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- UV Be1
- Outcome
- 100 grain weighte0
- Direction
- varyed at different directionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100 grain weight, however, varyed at different directions”
t0“Soybean”
t1“Ultraviolet B Radiation”
e1“Increased UV B irradiance changed flowering time in some cultivars.”
Claim · model-written summary
Cultivar 8907 32 was the most susceptible to enhanced UV B, with sensitivity index -33.9.
- Taxon
- soybeanGlycine maxt0
- Material
- 8907 32e0
- Outcome
- most susceptive onee0
- Value
- SI=-33.9e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars 8907 32(SI=-33.9) was the most susceptive one in 10 soybean cultivars”
t0“Soybean”
Claim · model-written summary
Longjian 98 01 had the lowest susceptibility to enhanced UV B, with sensitivity index -16.4.
- Taxon
- SoybeanGlycine maxt0
- Material
- Longjian 98 01e0
- Outcome
- lowest onee0
- Value
- SI=-16.4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Longjian 98 01 (SI=-16.4) the lowest one”
t0“Soybean”
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