Abstract
Koshihikari and Hinohikari sown at three different times were grown under running and stagnant irrigation and in two water depth systems. The number of days required for transplanting to heading (DTH) was shortened as the date of sowing was put back. Rises in water temperature during the daytime were strictly checked under running irrigation and at 22cm depth, though the water temperature during nights was not different from surface to 22cm depth. Running irrigation extends DTH, while stagnant irrigation remarkably reduced DTH under high temperatures. A high water temperature induced by stagnant irrigation and deep flood irrigation accelerated elongation growth, and low temperature due to running irrigation reduced the rate of leaf emergence and final leaf number on the main stem. The effects of running and stagnant irrigation on dry matter production depended on the temperature environment during growing period, and running irrigation under high temperature and stagnant irrigation under low temperature acted positively on dry matter production. From those results, it was concluded that it is possible to control the growth and development of rice by changing irrigation type.
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Claims 12
Claim · model-written summary
Later sowing shortened days from transplanting to heading.
Verbatim
t0“Paddy Rice (Oryza sativa L.)”
e0“The number of days required for transplanting to heading (DTH) was shortened as the date of sowing was put back”
Claim · model-written summary
Running irrigation limited daytime water temperature rises.
- Taxon
- Paddy Ricet0
- Treatment
- running irrigatione0
- Outcome
- Rises in water temperature during the daytimee0
- Direction
- strictly checkede0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“Rises in water temperature during the daytime were strictly checked under running irrigation”
Claim · model-written summary
Water depth of 22cm limited daytime water temperature rises.
- Taxon
- Paddy Ricet0
- Treatment
- 22cm depthe0
- Outcome
- Rises in water temperature during the daytimee0
- Direction
- strictly checkede0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“Rises in water temperature during the daytime were strictly checked under running irrigation and at 22cm depth”
Claim · model-written summary
Night water temperature did not differ from surface to 22cm depth.
Verbatim
t0“Paddy Rice”
e0“the water temperature during nights was not different from surface to 22cm depth”
Claim · model-written summary
Running irrigation extended days from transplanting to heading.
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“Running irrigation extends DTH”
Claim · model-written summary
Stagnant irrigation reduced days to heading at high temperature.
- Taxon
- Paddy Ricet0
- Treatment
- stagnant irrigatione0
- Outcome
- DTHe0
- Direction
- reducede0
- Qualifier
- under high temperaturese0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“stagnant irrigation remarkably reduced DTH under high temperatures”
Claim · model-written summary
High water temperature from stagnant irrigation accelerated elongation growth.
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“A high water temperature induced by stagnant irrigation and deep flood irrigation accelerated elongation growth”
Claim · model-written summary
High water temperature from deep flood irrigation accelerated elongation growth.
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“A high water temperature induced by stagnant irrigation and deep flood irrigation accelerated elongation growth”
Claim · model-written summary
Low temperature from running irrigation reduced leaf emergence rate and final main stem leaf number.
- Taxon
- Paddy Ricet0
- Treatment
- running irrigatione0
- Outcome
- rate of leaf emergence and final leaf number on the main steme0
- Direction
- reducede0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“low temperature due to running irrigation reduced the rate of leaf emergence and final leaf number on the main stem”
Claim · model-written summary
Running irrigation under high temperature positively affected dry matter production.
- Taxon
- Paddy Ricet0
- Treatment
- running irrigation under high temperaturee0
- Outcome
- dry matter productione0
- Direction
- positivelye0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“running irrigation under high temperature and stagnant irrigation under low temperature acted positively on dry matter production”
Claim · model-written summary
Stagnant irrigation under low temperature positively affected dry matter production.
- Taxon
- Paddy Ricet0
- Treatment
- stagnant irrigation under low temperaturee0
- Outcome
- dry matter productione0
- Direction
- positivelye0
Not reportedComparator
Verbatim
t0“Paddy Rice”
e0“running irrigation under high temperature and stagnant irrigation under low temperature acted positively on dry matter production”
Claim · model-written summary
Changing irrigation type can control rice growth and development.
- Taxon
- rice
Oryza sativae0 - Outcome
- control the growth and development of rice by changing irrigation typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Paddy Rice”
e0“it is possible to control the growth and development of rice by changing irrigation type”
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