Paper · 2000 · Kyushu University Institutional Repository (QIR) (Kyushu University)

EFFECT OF ADDITIONAL LOW INTENSITY LUMINESCENCE RADIATION 625nm ON PLANT GROWTH AND PHOTOSYNTHESIS

A. A. Kosobryukhov; Vladimir D. Kreslavski; R. N. Khramov; et al.

4
claims
8
verbatim quotes
3
citations
2
research areas
✓
Open access · other-oa

Abstract

(Licopersicon esculentum Mill.) and cabbage (Brassica oleracea L. var. Cymosa) plants were grown in a glass greenhouse under natural radiation in summer. A half of pots with plants were placed under an ordinary (control) and the other part under the "Redlight " (experimental variant) polyethylene films, both 100/lm thick. The Redlight film had the same transmittance but transformed 3.5 % of ultraviolet light falling on a plant into fluorescent radiation with a main maximum of 625 nm. Plants grown under modified solar radiation exhibited high intensity of photosynthesis at light saturation, a shift of saturation region to the higher level of radiation, as well as high efficiency of photosynthesis under low light intensity. An appreciable increase in the CO2 assimilation rate and biological productivity under modified light irradiation of plants allows recommending the method of additional plant irradiation under controlled conditions. Under natural irradiation of plants this can be achieved by the use of Redlight film. Key words: light-transforming film; solar radiation; controlled environment; photosynthetic activity;. biological productivity

Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Modified solar radiation increased light-saturated photosynthetic intensity, saturation level and low-light photosynthetic efficiency in tomato.

Taxon
Licopersicon esculentum Mill.e1
Treatment
modified solar radiatione0
Outcome
intensity of photosynthesis at light saturation, a shift of saturation region to the higher level of radiatione0
Direction
highe0
Comparator
ordinary (control)e2

Verbatim

e0

“Plants grown under modified solar radiation exhibited high intensity of photosynthesis at light saturation, a shift of saturation region to the higher level of radiation, as well as high efficiency of photosynthesis under low light intensity”

✓ located verbatim in the source · abstract, characters 489–730 · show in text ↑
e1

“(Licopersicon esculentum Mill.) and cabbage (Brassica oleracea L. var. Cymosa) plants”

✓ located verbatim in the source · abstract, characters 0–85 · show in text ↑
e2

“ordinary (control)”

✓ located verbatim in the source · abstract, characters 202–220 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Modified solar radiation increased light-saturated photosynthetic intensity, saturation level and low-light photosynthetic efficiency in cabbage.

Treatment
modified solar radiatione0
Outcome
high efficiency of photosynthesis under low light intensitye0
Direction
highe0
Comparator
ordinary (control)e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Plants grown under modified solar radiation exhibited high intensity of photosynthesis at light saturation, a shift of saturation region to the higher level of radiation, as well as high efficiency of photosynthesis under low light intensity”

✓ located verbatim in the source · abstract, characters 489–730 · show in text ↑
e1

“(Licopersicon esculentum Mill.) and cabbage (Brassica oleracea L. var. Cymosa) plants”

✓ located verbatim in the source · abstract, characters 0–85 · show in text ↑
e2

“ordinary (control)”

✓ located verbatim in the source · abstract, characters 202–220 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Modified light increased CO2 assimilation and biological productivity.

Taxon
plantsViridiplantaee0
Treatment
modified light irradiatione0
Outcome
CO2 assimilation rate and biological productivitye0
Direction
increasee0

Not reportedComparator

Verbatim

e0

“An appreciable increase in the CO2 assimilation rate and biological productivity under modified light irradiation of plants”

✓ located verbatim in the source · abstract, characters 732–855 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommended additional irradiation under controlled conditions using Redlight film under natural irradiation.

Taxon
plantsViridiplantaee0
Treatment
Redlight filme0
Outcome
additional plant irradiation under controlled conditionse0

Verbatim

e0

“allows recommending the method of additional plant irradiation under controlled conditions. Under natural irradiation of plants this can be achieved by the use of Redlight film”

✓ located verbatim in the source · abstract, characters 856–1032 · show in text ↑

radiation · physiology: photosynthesis · Viridiplantae (plants)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. negative
  2. negative
See all 3 papers →

light · physiology: photosynthesis · Brassica oleracea (wild cabbage)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

7 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

7 papers more in this group

See all 11 papers →

light · physiology: photosynthesis · Viridiplantae (plants)Positive and negative results

16 papers: 9 positive, 7 negative or no effect

8 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. negative
  3. negative

12 papers more in this group

See all 16 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.