Abstract
Exposure of broad bean seedlings either germinated in dark conditions and/or in light conditions (40 W, low intensity and 160 W; high intensity) during germination to UV-A365nm and UV-C254nm for one hour daily throughout the entire period of the experiment (six days), led to significant decrease in all growth parameters determined (length of radicle, length of plumule, water content, fresh weight and dry weight) as compared with control seedlings. Significant changes were observed in the amount and in the relative composition of photosynthetic parameters (Chl a, Chl b, Chl a+b, Chl a/b, Cars, Total pigments) of the variously treated broad beans in relation to control samples. Photosynthetic activity expressed in the present work as the reduction of 2,6-DCPIP (PS II activity) of the differently treated broad beans showed variable significant changes as compared with control seedlings throughout the entire period of the experiment. These results are discussed mainly on the basis of the mechanism of action of UV radiation on growth and metabolic changes in broad beans during germination in dark or in light conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
UV exposure significantly decreased radicle and plumule lengths and water content relative to controls.
- Taxon
- broad bean seedlings
Vicia fabae0 - Treatment
- UV-A365nm and UV-C254nme0
- Outcome
- length of radicle, length of plumule, water contente0
- Direction
- decreasee0
- Qualifier
- one hour daily throughout the entire period of the experiment (six days)e0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure of broad bean seedlings either germinated in dark conditions and/or in light conditions (40 W, low intensity and 160 W; high intensity) during germination to UV-A365nm and UV-C254nm for one hour daily throughout the entire period of the experiment (six days), led to significant decrease in all growth parameters determined (length of radicle, length of plumule, water content, fresh weight and dry weight) as compared with control seedlings.”
Claim · model-written summary
UV exposure significantly decreased fresh and dry weight relative to controls.
- Taxon
- broad bean seedlingsVicia fabae0
- Treatment
- UV-A365nm and UV-C254nme0
- Outcome
- fresh weight and dry weighte0
- Direction
- decreasee0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure of broad bean seedlings either germinated in dark conditions and/or in light conditions (40 W, low intensity and 160 W; high intensity) during germination to UV-A365nm and UV-C254nm for one hour daily throughout the entire period of the experiment (six days), led to significant decrease in all growth parameters determined (length of radicle, length of plumule, water content, fresh weight and dry weight) as compared with control seedlings.”
Claim · model-written summary
Photosynthetic pigment amounts and relative composition changed significantly with UV treatment.
- Taxon
- broad beansVicia fabae0
- Treatment
- variously treatede0
- Outcome
- amount and in the relative composition of photosynthetic parameterse0
- Comparator
- control samplese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant changes were observed in the amount and in the relative composition of photosynthetic parameters (Chl a, Chl b, Chl a+b, Chl a/b, Cars, Total pigments) of the variously treated broad beans in relation to control samples.”
Claim · model-written summary
Photosynthetic activity showed variable significant changes versus controls.
- Taxon
- broad beansVicia fabae0
- Treatment
- differently treatede0
- Outcome
- Photosynthetic activitye0
- Comparator
- control seedlingse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthetic activity expressed in the present work as the reduction of 2,6-DCPIP (PS II activity) of the differently treated broad beans showed variable significant changes as compared with control seedlings throughout the entire period of the experiment.”
The same questions in other papers
uv · growth · Vicia faba (faba bean)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
3 papers more in this group
See all 7 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.