Determination of gene controlling Aroma (badh2) and evaluation of bacterial blight resistance (xa5) of rice in F2 derived population [manuscript]
| dc.contributor.author | Edelyn M. Galingan | |
| dc.date.accessioned | 2026-04-23T01:11:10Z | |
| dc.date.available | 2026-04-23T01:11:10Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Aromatic rice varieties constitute a small but special group of rice and demand a premium price in local and international market. However, they are often characterized for having undesirable agronomic characteristics. This study was conducted to identify and select breeding lines with aroma (badh2) and resistance to bacterial blight (xa5) through genotyping and phenotyping. The F2 population derived from the crosses NSIC Rc222 x MS16 and NSIC Rc222 x Pandan were used in the study. The result of Chi square analysis for aroma and R-gene xa5 inheritance in both crosses did not correspond with the expected 1:2:1 Mendelian ratio for a single recessive gene. This prove the recent studies for aroma gene, which suggest that due to the difference of materials used in the study while interaction with the environment is a possible reason to the segregation distortion of R-gene xa5. A total of 17 and 42 plants from the cross between Rc222 x MS16 and Rc222 x Pandan respectively, were identified to both badh2 and xa5 genes, and resistant gainst bacterial leaf blight were selected. From this, lines that were selected can be subject into further evaluation immediately, reducing the time utilized in selection process of the breeding programme. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/1092 | |
| dc.language.iso | en_US | |
| dc.relation.supervisor | MARCIAL A. GONZALES, M.Sc. | |
| dc.title | Determination of gene controlling Aroma (badh2) and evaluation of bacterial blight resistance (xa5) of rice in F2 derived population [manuscript] | |
| dc.type | Thesis |