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- E-ISSN Number: 2277-7695
- P-ISSN Number: 2349-8242
- CODEN Code: PIHNBQ
- ZDB-Number: 2663038-2
- IC Journal ID: 7725
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Vol. 12, Issue 5 (2023)
Studies on path coefficient analysis and variability parameters for seedling stage salinity tolerance in rice (Oryza sativa L.)
Author(s):
M. Vani Praveena, P. Venkata Ramana Rao, Jyothi Badri, Ch. Sreenivas and D. Ramesh
M. Vani Praveena, P. Venkata Ramana Rao, Jyothi Badri, Ch. Sreenivas and D. Ramesh
Abstract:
An experiment was conducted during rabi 2021-22 and kharif 2022 using hydroponics system for screening 204 F3:4 population derived from the cross MTU 1061 × MTU 1121 in complete randomized block design with two replications to study path coefficient analysis and genetic variability parameters at Regional Agricultural Research Station, Maruteru. Highly significant differences among the screened genotypes were revealed by Analysis of variance. Highest positive direct effects were observed for shoot length (0.944), SIS (0.446), root length (0.191) and shoot potassium concentration (0.111) at genotypic level. Negative direct effects at genotypic level were revealed by shoot sodium concentration (Na+) and shoot sodium to potassium ratio (Na+/K+). Shoot K+ concentration (K+) and root length showed positive indirect effect. Phenotypic co-efficient of variation (PCV) ranged between 13.74 (shoot length) and 64.89 (Na+/K+) while the genotypic co-efficient of variation (GCV) ranged between the traits Na+/K+ (0.54) and K+ (30.06). High heritability was revealed for the traits K+ (95.61%), shoot length (76.23%), root length (66.91%) and Na+ (64.14%). High GAM was observed for shoot dry weight, SIS, Na+ and K+. High heritability and GAM was observed for K+ and Na+ and selection for these traits can increase shoot dry weight under salt stress condition.
An experiment was conducted during rabi 2021-22 and kharif 2022 using hydroponics system for screening 204 F3:4 population derived from the cross MTU 1061 × MTU 1121 in complete randomized block design with two replications to study path coefficient analysis and genetic variability parameters at Regional Agricultural Research Station, Maruteru. Highly significant differences among the screened genotypes were revealed by Analysis of variance. Highest positive direct effects were observed for shoot length (0.944), SIS (0.446), root length (0.191) and shoot potassium concentration (0.111) at genotypic level. Negative direct effects at genotypic level were revealed by shoot sodium concentration (Na+) and shoot sodium to potassium ratio (Na+/K+). Shoot K+ concentration (K+) and root length showed positive indirect effect. Phenotypic co-efficient of variation (PCV) ranged between 13.74 (shoot length) and 64.89 (Na+/K+) while the genotypic co-efficient of variation (GCV) ranged between the traits Na+/K+ (0.54) and K+ (30.06). High heritability was revealed for the traits K+ (95.61%), shoot length (76.23%), root length (66.91%) and Na+ (64.14%). High GAM was observed for shoot dry weight, SIS, Na+ and K+. High heritability and GAM was observed for K+ and Na+ and selection for these traits can increase shoot dry weight under salt stress condition.
Pages: 4660-4664 | 160 Views 83 Downloads
How to cite this article:
M. Vani Praveena, P. Venkata Ramana Rao, Jyothi Badri, Ch. Sreenivas, D. Ramesh. Studies on path coefficient analysis and variability parameters for seedling stage salinity tolerance in rice (Oryza sativa L.). Pharma Innovation 2023;12(5):4660-4664.
Journal code(s)
- E-ISSN Number: 2277-7695
- P-ISSN Number: 2349-8242
- CODEN Code: PIHNBQ
- ZDB-Number: 2663038-2
- IC Journal ID: 7725
Main Menu
Special Issue
Copyright Form
Identifier
The Pharma Innovation Journal
