Events
6th Open Seminar in AY 2016
"Oryza longistaminata's potential in practical breeding for sustainable agriculture in rice"
Uploaded Date: 2018-07-12
Program
| Date | 9 March, 2017 (THU) 15:30 - 17:00 |
|---|---|
| Venue | Lecture Room No.7, School of Agricultural Sciences, Nagoya University |
| Speaker | Ms. Emily W. Gichuhi (Graduate School of Environmental and Life Science, Okayama University) |
| Language | English |
Fertilizers have contributed highly to increased crop yields in the world. However, modern high input agriculture has frequently impacted the environment. Therefore, change to sustainable agriculture harmonized with the environment is needed. Wild rice species are an important reservoir of genetic diversity that can be utilized to breed low-input adaptable (LIA) rice. Oryza longistaminata is a remote wild rice carrying the AA genome and possesses the vigorous biomass needed under low-input conditions. Hence, introgression lines carrying O. longistaminata's (MwM) chromosome segments were bred under non-fertilized conditions at the Institute of Plant Science and Resources, Kurashiki. The potential LIA-1 (pLIA-1) line showed better performance than Norin 18, T-65 and Nipponbare under fertilized and non-fertilized conditions. In addition, QTLs for increased NF/F rate derived from pLIA-1 for number of primary and secondary branches, and number of spikelets per panicle were identified in RILs thereby suggesting that pLIA-1 might carry QTLs for low fertilizer tolerance.
