Abstract
The response of chrysanthemum plants to varying R:FR ratios and phytochrome photoequilibrium values (Ø = P fr /P tot ) was evaluated by growing plants under 6%, or 40% CuSO 4 and water spectral filters. Using a narrow band-width (R = 655-665 and FR = 725-735 nm) and a broad bandwidth (R = 600-700 and FR = 700-800 nm) for R:FR calculation, 6% CUSO 4 filter transmitted light with greater R:FR (3.9) and grater Ø (0.81) than 40% CuSO 4 or water filters. Light transmitted through 40% CuSO 4 and water filters had a similar narrow band R:FR ratio (1.2), but the broad band R:FR ratio (2.1) of 40% CuSO 4 filter was higher than water filter. Estimated Ø value was similar for both water and 40% CuSO 4 filters. Final height of plants grown in CuSO 4 chambers was about 30% less than the plants in control chambers. The results suggest that broad band R:FR ratio correlated more closely to plant response than the narrow band R:FR ratio.
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Claims 6
Claim · model-written summary
The 6% CuSO 4 filter transmitted light with greater R:FR and phytochrome photoequilibrium than the other filters.
- Taxon
- chrysanthemum
.jpeg?width=60)
Chrysanthemumt0 - Outcome
- R:FRe0
- Direction
- greatere0
- Value
- 3.9e0
- Comparator
- 40% CuSO 4 or water filterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“6% CUSO 4 filter transmitted light with greater R:FR (3.9) and grater Ø (0.81) than 40% CuSO 4 or water filters”
t0“CHRYSANTHEMUM”
Claim · model-written summary
The 40% CuSO 4 and water filters had similar narrow band R:FR ratios.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- narrow band R:FR ratioe0
- Direction
- similare0
- Value
- 1.2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light transmitted through 40% CuSO 4 and water filters had a similar narrow band R:FR ratio (1.2)”
t0“CHRYSANTHEMUM”
Claim · model-written summary
The broad band R:FR ratio of the 40% CuSO 4 filter exceeded that of water.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- broad band R:FR ratioe0
- Direction
- highere0
- Value
- 2.1e0
- Comparator
- water filtere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the broad band R:FR ratio (2.1) of 40% CuSO 4 filter was higher than water filter”
t0“CHRYSANTHEMUM”
Claim · model-written summary
Estimated phytochrome photoequilibrium was similar under water and 40% CuSO 4 filters.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- Estimated Ø valuee0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Estimated Ø value was similar for both water and 40% CuSO 4 filters”
t0“CHRYSANTHEMUM”
Claim · model-written summary
CuSO 4 chambers reduced final chrysanthemum height by about 30% relative to control chambers.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- CuSO 4 chamberse0
- Outcome
- Final heighte0
- Direction
- lesse0
- Value
- about 30%e0
- Comparator
- control chamberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Final height of plants grown in CuSO 4 chambers was about 30% less than the plants in control chambers”
t0“CHRYSANTHEMUM”
Claim · model-written summary
Broad band R:FR correlated more closely with plant response than narrow band R:FR.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- plant responsee0
- Comparator
- narrow band R:FR ratioe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“broad band R:FR ratio correlated more closely to plant response than the narrow band R:FR ratio”
t0“CHRYSANTHEMUM”
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