Abstract
To study the effect of high temperature, rice seedlings 20, 30, 40 and 50 d were kept at 5, 10, 15 and 20 cm water depth in a water pool. Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth. Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight). However, deep water tended to increase plant length. These parameters, however, excel in shallow water. Older seedlings, with the exception of root dry weight, could not perform well compared to young seedlings in all physiological and morphological aspects. The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature.
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Claims 9
Claim · model-written summary
Deep water increased tiller mortality in transplanted rice compared with shallow water.
- Taxon
- rice
Oryza sativat0 - Treatment
- Deep watere1
- Outcome
- tiller mortalitye1
- Direction
- highere1
- Comparator
- shallow watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight)”
e2“These parameters, however, excel in shallow water”
Claim · model-written summary
Deep water gave a minimal increase in dry weight of aerial parts and leaf area in transplanted rice compared with shallow water.
- Taxon
- riceOryza sativat0
- Treatment
- Deep watere1
- Outcome
- dry weight of aerial parts and leaf areae1
- Direction
- minimal increasee1
- Comparator
- shallow watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight)”
e2“These parameters, however, excel in shallow water”
Claim · model-written summary
Deep water decreased root length in transplanted rice compared with shallow water.
- Taxon
- riceOryza sativat0
- Treatment
- Deep watere1
- Outcome
- root lengthe1
- Direction
- decreasee1
- Comparator
- shallow watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight)”
e2“These parameters, however, excel in shallow water”
Claim · model-written summary
Deep water decreased root dry weight in transplanted rice compared with shallow water.
- Taxon
- riceOryza sativat0
- Treatment
- Deep watere1
- Outcome
- root dry weighte1
- Direction
- decreasee1
- Comparator
- shallow watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight)”
e2“These parameters, however, excel in shallow water”
Claim · model-written summary
Deep water produced an unbalanced top-to-root dry weight ratio in transplanted rice compared with shallow water.
- Taxon
- riceOryza sativat0
- Treatment
- Deep watere1
- Outcome
- T/R ratioe1
- Qualifier
- top versus root dry weighte1
- Comparator
- shallow watere2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight)”
e2“These parameters, however, excel in shallow water”
Claim · model-written summary
Deep water tended to increase plant length in transplanted rice.
- Taxon
- riceOryza sativat0
- Treatment
- deep watere1
- Outcome
- plant lengthe1
- Direction
- increasee1
- Qualifier
- tended toe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“However, deep water tended to increase plant length”
Claim · model-written summary
Older seedlings performed worse than young seedlings in physiological and morphological aspects of transplanted rice, except for root dry weight.
- Taxon
- riceOryza sativat0
- Treatment
- Older seedlingse1
- Outcome
- physiological and morphological aspectse1
- Direction
- lowerinferrede1
- Qualifier
- with the exception of root dry weighte1
- Comparator
- young seedlingse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Older seedlings, with the exception of root dry weight, could not perform well compared to young seedlings in all physiological and morphological aspects”
Claim · model-written summary
Seedlings, particularly young ones, stood well in shallow water and coped with high temperature.
- Taxon
- riceOryza sativat0
- Treatment
- shallow watere1
- Outcome
- cope with high temperaturee1
- Qualifier
- particularly young onese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature”
Claim · model-written summary
Water temperature in the water pool varied up to 10 cm depth and became stable below it.
- Taxon
- riceOryza sativat0
- Outcome
- water temperaturee1
- Qualifier
- varied up to 10 cm but became stable below this depthe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“transplanted rice”
e1“Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth”