Abstract
UV-B irradiation (UV-BBE=1.4 kJ⋅m⋅d) considerably decreased the activity of primary reactions of photosynthesis in oilseed rape leaves, with stronger effect when applied with a broad-band lamp, Philips TL40/12, than with a narrow-band lamp, Philips TL100/01. The plants grown under the latter lamp showed enhanced flavonoids synthesis. After recovery, the content of ultraviolet-absorbing compounds was equal in the irradiated and the control plants. The UV-B irradiation of the plants in an early stage of development resulted in the permanent changes: significant reduction of leaf area and dry mass, which was measured after four months' recovery at the presence of white light. Zastosowane promieniowanie UV-B (UV-BBE= 1,4 kJ⋅m⋅d) znacznie obnizylo sprawnośc pierwotnych reakcji fotosyntezy w liściach roślin rzepaku, przy czym szerokopasmowa lampa Philips TL40/12 wykazala silniejsze oddzialywanie niz lampa wąskopasmowa Philips TL 100/01. Rośliny rosnące przy tej drugiej lampie wykazaly wzmozoną synteze flawonoidow. Po okresie restytucji poziom związkow pochlaniających promieniowanie ultrafioletowe ulegl wyrownaniu w roślinach napromieniowanych i kontrolnych. Napromieniowanie UV-B roślin we wczesnej fazie wzrostu wywolalo trwale skutki poprzez istotne zmniejszenie powierzchni i suchej masy liści, mierzone po 4-miesiecznym okresie restytucji.
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Claims 6
Claim · model-written summary
UV-B irradiation considerably reduced primary photosynthetic reaction activity in oilseed rape leaves.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Organ / stage
- leavese0
- Treatment
- UV-B irradiation (UV-BBE=1.4 kJ⋅m⋅d)e0
- Outcome
- activity of primary reactions of photosynthesise0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“UV-B irradiation (UV-BBE=1.4 kJ⋅m⋅d) considerably decreased the activity of primary reactions of photosynthesis in oilseed rape leaves”
Claim · model-written summary
The broad-band lamp caused a stronger photosynthetic effect than the narrow-band lamp.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- broad-band lamp, Philips TL40/12e0
- Outcome
- stronger effecte0
- Direction
- strongere0
- Comparator
- narrow-band lamp, Philips TL100/01e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with stronger effect when applied with a broad-band lamp, Philips TL40/12, than with a narrow-band lamp, Philips TL100/01”
t0“oilseed rape plants”
Claim · model-written summary
Plants under the narrow-band lamp had enhanced flavonoid synthesis.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- narrow-band lamp, Philips TL100/01e1
- Outcome
- flavonoids synthesise0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants grown under the latter lamp showed enhanced flavonoids synthesis”
e1“a narrow-band lamp, Philips TL100/01”
t0“oilseed rape plants”
Claim · model-written summary
After recovery, irradiated and control plants had equal ultraviolet-absorbing compound content.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- irradiatede0
- Outcome
- content of ultraviolet-absorbing compoundse0
- Direction
- equale0
- Qualifier
- After recoverye0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After recovery, the content of ultraviolet-absorbing compounds was equal in the irradiated and the control plants”
t0“oilseed rape plants”
Claim · model-written summary
Early UV-B irradiation significantly reduced leaf area after four months of recovery.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- UV-B irradiatione0
- Outcome
- leaf areae0
- Direction
- reductione0
- Qualifier
- after four months' recovery at the presence of white lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The UV-B irradiation of the plants in an early stage of development resulted in the permanent changes: significant reduction of leaf area and dry mass, which was measured after four months' recovery at the presence of white light”
t0“oilseed rape plants”
Claim · model-written summary
Early UV-B irradiation significantly reduced dry mass after four months of recovery.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- UV-B irradiatione0
- Outcome
- dry masse0
- Direction
- reductione0
- Qualifier
- after four months' recovery at the presence of white lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The UV-B irradiation of the plants in an early stage of development resulted in the permanent changes: significant reduction of leaf area and dry mass, which was measured after four months' recovery at the presence of white light”
t0“oilseed rape plants”
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uv · physiology: photosynthesis · Brassica napus (oilseed rape)Results agree
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See all 8 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.