Paper · 1978 · HortScience

Apple Leaf Photosynthesis in Alternating Light1

Alan N. Lakso; Johnette E. Barnes

2
claims
4
verbatim quotes
10
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Photosynthetic rates of mature leaves of apple ( Malus domestica Borkh.) from field shoots were measured under high, low, and alternating light conditions (0.5 seconds at each level) in the laboratory. Photosynthetic rates in alternating light were consistently 85% of those recorded under continuous high light. Photosynthetic efficiency was substantially increased under alternating light conditions.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 2

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Apple leaf photosynthetic rates under alternating light were 85% of those under continuous high light.

Treatment
alternating lighte0
Outcome
Photosynthetic ratese0
Value
85%e0
Comparator
continuous high lighte0

Not reportedDirection

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Photosynthetic rates in alternating light were consistently 85% of those recorded under continuous high light.”

✓ located verbatim in the source · abstract, characters 211–321 · show in text ↑
t0

“Apple Leaf Photosynthesis in Alternating Light1”

✓ located verbatim in the source · title, characters 0–47 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alternating light substantially increased apple leaf photosynthetic efficiency.

Treatment
alternating light conditionse0
Outcome
Photosynthetic efficiencye0
Direction
increasede0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Photosynthetic efficiency was substantially increased under alternating light conditions.”

✓ located verbatim in the source · abstract, characters 322–411 · show in text ↑
t0

“Apple Leaf Photosynthesis in Alternating Light1”

✓ located verbatim in the source · title, characters 0–47 · show in text ↑

light · physiology: photosynthesis · Malus domestica (apple)Positive and negative results

8 papers: 4 positive, 4 negative or no effect

3 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

4 papers more in this group

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.