Abstract
Rice (Oryza sativa L.) cultivars ‘Taichung shen 10’ (‘TCS10’) and ‘IR1552’ were hydroponically grown under different light conditions to investigate the effect of light quality on their biomass, transpiration, water-use efficiency (WUE), carbon isotope discrimination (Δ), seed nitrogen (N) contribution and nitrogen uptake ability from the hydroponic nutrient solutions. Light emitting diode (LED) lighting systems were used to control light quality. Different light treatments were applied to the rice seedlings including red (R), green (G), and blue light (B), with red + blue light (RB) as control. The photon flux density was set at 105 μmol m-2 s-1. WUE and Δ were combined to evaluate whole-plant WUE. Improved whole-plant WUE was observed for both cultivars under R and RB light due to lower transpiration rates than under B light. Green light also improved Δ in both rice seedling cultivars. Seed N contribution of both cultivars was stable across all light treatments, while improved N uptake ability was observed under B and RB light. In addition, N uptake in ‘IR1552’ rice seedling cultivars did not respond as favourably to green light as ‘TCS10’ cultivars.
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Claims 6
Claim · model-written summary
Whole-plant WUE was improved under red and red+blue light relative to blue light in both rice cultivars
- Taxon
- rice
Oryza sativae0 - Treatment
- R and RB lighte1
- Outcome
- whole-plant WUEe1
- Direction
- Improvede1
- Comparator
- B lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice (Oryza sativa L.) cultivars”
e1“Improved whole-plant WUE was observed for both cultivars under R and RB light due to lower transpiration rates than under B light”
Claim · model-written summary
Transpiration rates were lower under red and red+blue light than under blue light
- Taxon
- riceOryza sativae0
- Treatment
- R and RB lighte1
- Outcome
- transpiration ratese1
- Direction
- lowere1
- Comparator
- B lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice (Oryza sativa L.) cultivars”
e1“Improved whole-plant WUE was observed for both cultivars under R and RB light due to lower transpiration rates than under B light”
Claim · model-written summary
Green light improved carbon isotope discrimination in both rice seedling cultivars
- Taxon
- riceOryza sativae2
- Treatment
- Green lighte2
- Outcome
- Δe2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Green light also improved Δ in both rice seedling cultivars”
Claim · model-written summary
Seed N contribution of both rice cultivars was stable across all light treatments
- Taxon
- riceOryza sativae0
- Treatment
- light treatmentse3
- Outcome
- Seed N contributione3
- Direction
- stablee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice (Oryza sativa L.) cultivars”
e3“Seed N contribution of both cultivars was stable across all light treatments, while improved N uptake ability was observed under B and RB light”
Claim · model-written summary
N uptake ability was improved under blue and red+blue light in rice seedlings
- Taxon
- riceOryza sativae0
- Treatment
- B and RB lighte3
- Outcome
- N uptake abilitye3
- Direction
- improvede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice (Oryza sativa L.) cultivars”
e3“Seed N contribution of both cultivars was stable across all light treatments, while improved N uptake ability was observed under B and RB light”
Claim · model-written summary
N uptake in IR1552 did not respond to green light as favourably as in TCS10
- Taxon
- riceOryza sativae4
- Material
- IR1552e4
- Treatment
- green lighte4
- Outcome
- N uptakee4
- Direction
- did not respond as favourablye4
- Comparator
- TCS10e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In addition, N uptake in ‘IR1552’ rice seedling cultivars did not respond as favourably to green light as ‘TCS10’ cultivars”
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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.