Abstract
The effect of salinity on morphological characters of salt tolerant genotypes PVSB9, PVSB19, PNR381, PNR519, Iratom24 and salt sensitive genotype NS15 along with one standard check salt tolerant rice cultivar Pokkali were assessed in two factors Completely Randomized Design with four replications. Seven rice genotypes in combination with six levels of salinity (0, 3, 6, 9, 12 and 15 dS m(-1)) were randomly assigned in 168 experimental plastic pots. The different morphological characters studied include plant height, total number of tillers, Root Dry Weight (RDW), Shoot Dry Weight (SDW) and Total Dry Matter (TDM) content of the selected rice genotypes in view to evaluate their response at different salinity levels. The results on the effect of morphological characters indicated that plant height, total tillers, root, shoot and total dry matter were significantly decreased by the application of salinity. The genotypes Pokkali, PVSB9, PVSB19 showed significantly higher values and the lowest value of all these characters were recorded in NS15. A sharp decrease in percent relative-plant height, RDW, SDW, TDM, total tillers were found in susceptible genotype NS 15 after 3 dS m(-1) level of salinity, but these characters were found to decrease slowly in tolerant genotypes.
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Claims 5
Claim · model-written summary
Salinity significantly decreased rice plant height, tillers, and root, shoot and total dry matter.
- Taxon
- Rice
Oryza sativat0 - Treatment
- salinitye0
- Outcome
- plant height, total tillers, root, shoot and total dry mattere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa)”
e0“plant height, total tillers, root, shoot and total dry matter were significantly decreased by the application of salinity”
Claim · model-written summary
Pokkali, PVSB9 and PVSB19 had significantly higher morphological trait values.
- Taxon
- RiceOryza sativat0
- Material
- Pokkali, PVSB9, PVSB19e0
- Outcome
- higher valuese0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa)”
e0“The genotypes Pokkali, PVSB9, PVSB19 showed significantly higher values”
Claim · model-written summary
NS15 had the lowest values for all studied morphological characters.
- Taxon
- RiceOryza sativat0
- Material
- NS15e0
- Outcome
- lowest value of all these characterse0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa)”
e0“the lowest value of all these characters were recorded in NS15”
Claim · model-written summary
NS 15 showed a sharp decrease in relative plant height, root, shoot and total dry matter, and tillers after 3 dS m(-1) salinity.
- Taxon
- RiceOryza sativat0
- Material
- NS 15e0
- Treatment
- 3 dS m(-1) level of salinitye0
- Outcome
- percent relative-plant height, RDW, SDW, TDM, total tillerse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa)”
e0“A sharp decrease in percent relative-plant height, RDW, SDW, TDM, total tillers were found in susceptible genotype NS 15 after 3 dS m(-1) level of salinity”
Claim · model-written summary
Tolerant genotypes showed slow decreases in these morphological characters.
- Taxon
- RiceOryza sativat0
- Material
- tolerant genotypese0
- Outcome
- these characterse0
- Direction
- decreasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa)”
e0“these characters were found to decrease slowly in tolerant genotypes”
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