Abstract
We developed an automatic digital imaging system to acquire sequential growth images of rice in tillering stage. In this system, we cultivated 24 plants and acquired images of each individual plant at one-hour intervals. We measured leaf height using this system for 36 days from these sequential images. These sequential leaf height measurements made it possible to quantify the precise growth of rice plants, showing the timing of leaf elongation, leaf emergence interval and leaf elongation rate. We applied this method to evaluate the effect of photoperiod and tem-perature on rice growth. The timing of leaf emergence and the leaf emergence interval were affected by temperature and day length. On the other hand, the maximum leaf elongation rate was not significantly different under the temperature and day length examined. These results suggest that temperature and day length have different effects on leaf emergence and leaf elongation in rice. This method and instrument could be applied to phenotypic profiling studies for comprehensive growth of various plants species and cultivars.
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Claims 4
Claim · model-written summary
Sequential leaf height measurements quantified the timing of leaf elongation, leaf emergence interval and leaf elongation rate in rice.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- leafe1
- Outcome
- timing of leaf elongation, leaf emergence interval and leaf elongation ratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to acquire sequential growth images of rice in tillering stage”
e1“These sequential leaf height measurements made it possible to quantify the precise growth of rice plants, showing the timing of leaf elongation, leaf emergence interval and leaf elongation rate”
Claim · model-written summary
Temperature affected the timing of leaf emergence and the leaf emergence interval in rice.
- Taxon
- riceOryza sativae0
- Treatment
- temperaturee2
- Outcome
- timing of leaf emergence and the leaf emergence intervale2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to acquire sequential growth images of rice in tillering stage”
e2“The timing of leaf emergence and the leaf emergence interval were affected by temperature and day length”
Claim · model-written summary
Day length affected the timing of leaf emergence and the leaf emergence interval in rice.
- Taxon
- riceOryza sativae0
- Treatment
- day lengthe2
- Outcome
- timing of leaf emergence and the leaf emergence intervale2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to acquire sequential growth images of rice in tillering stage”
e2“The timing of leaf emergence and the leaf emergence interval were affected by temperature and day length”
Claim · model-written summary
The maximum leaf elongation rate of rice was not significantly different under the temperature and day length examined.
- Taxon
- riceOryza sativae0
- Treatment
- temperature and day lengthe3
- Outcome
- maximum leaf elongation ratee3
- Direction
- not significantly differente3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to acquire sequential growth images of rice in tillering stage”
e3“The maximum leaf elongation rate was not significantly different under the temperature and day length examined”
The same questions in other papers
light · growth · Oryza sativa (rice)Positive and negative results
39 papers in the same direction as this paper · 55 in the opposite direction
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