Abstract
Uncertain climate change impacts the difficulty of predicting the intensity of floods that hit rice fields in flood-prone areas, both the duration of the submerged plants and the height of the water surface. In order to evaluate the tolerance level and response of several local rice genotypes to submersion stress in the vegetative phase, 50 rice genotypes were screened (47 North Sumatran local varieties, 3 VUB), using special ponds to simulate flooding or inundation stress. The study used a separate plot design with three replications; the main plot was three immersion models, namely full immersion, partial soaking, and not soaking, and subplots of 50 rice genotypes. The immersion treatment was defined as a different growing environment. The results showed that in the fully submerged treatment, the recovery capacity of local rice plants only ranged from 0-20%. The new, improved varieties tested were Inpari 4 (susceptible), Inpari 3, 10, Ciherang, Inpara 2 (very susceptible), Inpari 30, FR13A (very tolerant). Submersion tolerant genotypes had a slight increase in plant height after being fully submerged. The chlorophyll content in the leaves decreased immediately after the soaking stress period (14 DAP) in all rice genotypes. The local rice genotypes tested were very susceptible to immersion; the new superior variety Inpari 4 was categorized as susceptible, while Inpari 30 and FR13A were very tolerant.
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Claims 7
Claim · model-written summary
Local rice recovery after full submersion was 0-20%.
- Taxon
- rice
Oryza sativae0 - Material
- local ricee0
- Treatment
- fully submerged treatmente0
- Outcome
- recovery capacitye0
- Value
- 0-20%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the fully submerged treatment, the recovery capacity of local rice plants only ranged from 0-20%”
Claim · model-written summary
Inpari 4 was susceptible to immersion.
- Taxon
- riceOryza sativae1
- Material
- Inpari 4e0
- Outcome
- susceptiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inpari 4 (susceptible)”
e1“50 rice genotypes were screened”
Claim · model-written summary
Inpari 3, 10, Ciherang and Inpara 2 were very susceptible.
- Taxon
- riceOryza sativae1
- Material
- Inpari 3, 10, Ciherang, Inpara 2e0
- Outcome
- very susceptiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inpari 3, 10, Ciherang, Inpara 2 (very susceptible)”
e1“50 rice genotypes were screened”
Claim · model-written summary
Inpari 30 and FR13A were very tolerant of submersion.
- Taxon
- riceOryza sativae1
- Material
- Inpari 30, FR13Ae0
- Outcome
- very tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inpari 30, FR13A (very tolerant)”
e1“50 rice genotypes were screened”
Claim · model-written summary
Submersion tolerant rice genotypes increased slightly in height after full submersion.
- Taxon
- riceOryza sativae1
- Material
- Submersion tolerant genotypese0
- Treatment
- fully submergede0
- Outcome
- plant heighte0
- Direction
- slight increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Submersion tolerant genotypes had a slight increase in plant height after being fully submerged”
e1“50 rice genotypes were screened”
Claim · model-written summary
Leaf chlorophyll content fell after soaking stress in all rice genotypes.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese0
- Treatment
- soaking stresse0
- Outcome
- chlorophyll contente0
- Direction
- decreasede0
- Qualifier
- 14 DAPe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content in the leaves decreased immediately after the soaking stress period (14 DAP) in all rice genotypes”
Claim · model-written summary
Tested local rice genotypes were very susceptible to immersion.
- Taxon
- riceOryza sativae0
- Material
- local rice genotypese0
- Outcome
- susceptible to immersione0
- Direction
- very susceptiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The local rice genotypes tested were very susceptible to immersion”
The same questions in other papers
application · physiology: pigments · Oryza sativa (rice)Positive and negative results
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