Abstract
Salinity is one of the most serious problems in rice cultivation. Salinity drastically reduced plant growth and yield, especially at seedling stage. Several rice genotypes have been produced, but their tolerance to salinity has not yet been evaluated. The study aimed to evaluate salinity tolerance of rice genotypes at seedling stage. The glasshouse experiment was conducted at Cimanggu Experimental Station, Bogor, from April to May 2013. Thirteen rice genotypes and two check varieties, namely Pokkali (salt tolerant) and IR29 (salt sensitive) were tested at seedling stage. The experiment was arranged in a randomized complete block design with three replications and two factors, namely the levels of NaCl (0 and 120 mM) and 13 genotypes of rice. Rice seedlings were grown in the nutrient culture (hydroponic) supplemented with NaCl at different levels. The growth and salinity injury levels of the genotypes were recorded periodically. The results showed that salinity level of 120 mM NaCl reduced seedling growth of all rice genotypes, but the tolerant ones were survived after 14 days or until the sensitive check variety died. Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level, while Inpara 4 was comparable to salt sensitive IR29. Hence, Inpara 4 could be used as a salinity sensitive genotype for future research of testing tolerant variety. Further evaluation is needed to confirm their salinity tolerance under field conditions.
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Claims 7
Claim · model-written summary
120 mM NaCl reduced seedling growth of all rice genotypes.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- seedlinge1
- Treatment
- 120 mM NaCle1
- Outcome
- seedling growthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e1“salinity level of 120 mM NaCl reduced seedling growth of all rice genotypes”
Claim · model-written summary
Tolerant rice genotypes survived 14 days of 120 mM NaCl.
- Taxon
- riceOryza sativat0
- Outcome
- survivede2
- Value
- 14 dayse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e2“the tolerant ones were survived after 14 days”
Claim · model-written summary
Dendang, Inpara 5 and Inpari 29 were tolerant to 120 mM salinity based on visual injury symptoms.
- Taxon
- riceOryza sativat0
- Material
- Dendang, Inpara 5, Inpari 29e3
- Treatment
- 120 mM salinity levele3
- Outcome
- tolerant to 120 mM salinity levele3
- Qualifier
- Based on the visual injury symptoms on the leavese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e3“Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level”
Claim · model-written summary
IR77674-3B-8-2-2-14-4-AJY2 was tolerant to 120 mM salinity based on visual injury symptoms.
- Taxon
- riceOryza sativat0
- Material
- IR77674-3B-8-2-2-14-4-AJY2e3
- Treatment
- 120 mM salinity levele3
- Outcome
- tolerant to 120 mM salinity levele3
- Qualifier
- Based on the visual injury symptoms on the leavese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e3“Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level”
Claim · model-written summary
IR81493-BBB-6-B-2-1-2 was tolerant to 120 mM salinity based on visual injury symptoms.
- Taxon
- riceOryza sativat0
- Material
- IR81493-BBB-6-B- 2-1-2e3
- Treatment
- 120 mM salinity levele3
- Outcome
- tolerant to 120 mM salinity levele3
- Qualifier
- Based on the visual injury symptoms on the leavese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e3“Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level”
Claim · model-written summary
Inpara 4 was comparable to salt-sensitive IR29 in visual injury symptoms.
- Taxon
- riceOryza sativat0
- Material
- Inpara 4e4
- Outcome
- visual injury symptomse3
- Direction
- comparablee4
- Comparator
- IR29e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e3“Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level”
e4“Inpara 4 was comparable to salt sensitive IR29”
Claim · model-written summary
Inpara 4 could be used as a salinity-sensitive genotype for future research on testing tolerant varieties.
- Taxon
- riceOryza sativat0
- Material
- Inpara 4e5
- Outcome
- could be used as a salinity sensitive genotypee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE”
e5“Hence, Inpara 4 could be used as a salinity sensitive genotype for future research of testing tolerant variety”
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