Abstract
Submergence tolerance is an important trait where short term flash flooding damages rice. Tolerant landraces that withstand submergence for 1–2 weeks were identified. Due to the heterogeneity in flood-prone ecosystem many different types of traditional rice cultivars are being grown by the farmers. The local landraces adapted to extremes in water availability could be the sources of genetic variation are to be used to improve the adaptability of rice to excess water stress. Greater genotypic variability was observed for plant height, elongation and survival %, absolute growth rate, non-structural carbohydrate retention capacity, chlorophyll content, different chlorophyll fluorescence parameters (FPs) characteristics, and re-generation growth at re-emergence. Twenty days submergence caused greater damage even in Submergence 1 ( SUB1) introgressed cultivars compared to the 14 days of submergence. The FPs, carbohydrate content and dry weight at the end of submergence showed positive and highly significant association with re-generation growth. The presence of SUB1 associated primers, either SC3 or ART5, was noticed even in greater elongating types of rice genotypes. These genotypes possess one or more of the adaptive traits required for the flood-prone ecosystem, which range from temporary submergence of 1–2 weeks to long period of stagnant water tolerance.
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Claims 8
Claim · model-written summary
Tolerant rice landraces that withstand submergence for 1-2 weeks were identified.
- Taxon
- Rice
Oryza sativat0 - Material
- landracese1
- Treatment
- submergence for 1–2 weekse1
- Outcome
- Tolerant landracese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e1“Tolerant landraces that withstand submergence for 1–2 weeks were identified”
Claim · model-written summary
Genotypes showed greater variability in plant height, elongation and survival percentage.
- Taxon
- RiceOryza sativat0
- Outcome
- plant height, elongation and survival %e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e2“Greater genotypic variability was observed for plant height, elongation and survival %”
Claim · model-written summary
Genotypes showed greater variability in absolute growth rate, non-structural carbohydrate retention capacity and chlorophyll content.
- Taxon
- RiceOryza sativat0
- Outcome
- absolute growth rate, non-structural carbohydrate retention capacity, chlorophyll contente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e7“absolute growth rate, non-structural carbohydrate retention capacity, chlorophyll content”
Claim · model-written summary
Genotypes showed greater variability in chlorophyll fluorescence parameters and in re-generation growth at re-emergence.
- Taxon
- RiceOryza sativat0
- Outcome
- different chlorophyll fluorescence parameters (FPs) characteristics, and re-generation growth at re-emergencee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e7“different chlorophyll fluorescence parameters (FPs) characteristics, and re-generation growth at re-emergence”
Claim · model-written summary
Twenty days of submergence caused greater damage than 14 days of submergence even in SUB1 introgressed cultivars.
- Taxon
- RiceOryza sativat0
- Material
- Submergence 1 ( SUB1) introgressed cultivarse3
- Treatment
- Twenty days submergencee3
- Gene
- SUB1e3
- Outcome
- damagee3
- Direction
- greatere3
- Comparator
- 14 days of submergencee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e3“Twenty days submergence caused greater damage even in Submergence 1 ( SUB1) introgressed cultivars compared to the 14 days of submergence”
Claim · model-written summary
The FPs, carbohydrate content and dry weight at the end of submergence were positively and highly significantly associated with re-generation growth.
- Taxon
- RiceOryza sativat0
- Organ / stage
- at the end of submergencee4
- Outcome
- re-generation growthe4
- Direction
- positivee4
- Qualifier
- highly significante4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e4“The FPs, carbohydrate content and dry weight at the end of submergence showed positive and highly significant association with re-generation growth”
Claim · model-written summary
SUB1 associated primers were detected even in greater elongating types of rice genotypes.
- Taxon
- RiceOryza sativat0
- Material
- greater elongating types of rice genotypese5
- Gene
- SUB1e5
- Outcome
- presence of SUB1 associated primerse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e5“The presence of SUB1 associated primers, either SC3 or ART5, was noticed even in greater elongating types of rice genotypes”
Claim · model-written summary
The genotypes possess adaptive traits required for the flood-prone ecosystem, ranging from temporary submergence of 1-2 weeks to long periods of stagnant water tolerance.
- Taxon
- RiceOryza sativat0
- Outcome
- adaptive traits required for the flood-prone ecosysteme6
- Qualifier
- range from temporary submergence of 1–2 weeks to long period of stagnant water tolerancee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Genotypes with SUB1 QTL Differ in Submergence Tolerance”
e6“These genotypes possess one or more of the adaptive traits required for the flood-prone ecosystem, which range from temporary submergence of 1–2 weeks to long period of stagnant water tolerance”
The same questions in other papers
flooding · pest · Oryza sativa (rice)Positive and negative results
9 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- positive
- positive
13 papers more in this group
See all 17 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.