Character association and path analysis in bacterial blight resistance genes pyramided segregating populations of rice (Oryza sativa L.)
An exploratory research work was conducted to study the character association and their direct and indirect effects on grain yield in three bacterial blight resistance genes introgressed segregating populations (F2) in rice. Data for yield and five other traits which were component of yield w...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Serbian Genetics Society
2018-01-01
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| Series: | Genetika |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0534-0012/2018/0534-00121801011G.pdf |
| Summary: | An exploratory research work was conducted to study the character association
and their direct and indirect effects on grain yield in three bacterial
blight resistance genes introgressed segregating populations (F2) in rice.
Data for yield and five other traits which were component of yield were
recorded in 449 F2 individuals in all three crosses. Thousand grain weight
was highly correlated with single plant yield in (r=0.95**, p<0.01) CB 174 R
× IRBB 60> (r=0.48**, p<0.01) CB 87 R × IRBB 60> (r=0.44**, p<0.01) TNAU CMS
2B × IRBB 60. Thousand grain weight was exhibited important yield
determining component for CB 174 R × IRBB 60 (0.92) and CB 87 R × IRBB 60
(0.45), and panicle length for (0.39) TNAU CMS 2B × IRBB 60 by direct
effect. The genetic information derived from our study could be useful to
select potential segregating individual among the F2 population for future
rice breeding program. |
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| ISSN: | 0534-0012 1820-6069 |