Development of salinity tolerant rice lines toward climate change

Research Project

Project/Area Number	23688029
Research Category	Grant-in-Aid for Young Scientists (A)
Allocation Type	Single-year Grants
Research Field	Agricultural environmental engineering
Research Institution	Hiroshima University (2012-2014) University of the Ryukyus (2011)
Principal Investigator	TRAN DANG・XUAN 広島大学, 国際協力研究科, 准教授 (10433096)
Project Period (FY)	2011-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000) Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000) Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000) Fiscal Year 2011: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Keywords	イネ / 塩害耐性 / ｱﾐﾛｽ / 収量 / 二次代謝物質 / 塩害 / アミロス / 食味 / 淡白 / 脂肪酸 / 気候変動 / 稲 / 遺伝子マーカー / 育種 / 耐塩性 / QTL / 遺伝子 / Phenotype / Genotype / 交配
Outline of Final Research Achievements	By this study, among hundred developed rice lines, a salinity tolerant line from the BC1F4 was selected with amylose content<22% and yield is higher than 5 tons/ha. The correlation of salinity and secondary metabolites in rice was determined. Of them, the correlation of fatty acids and momilactones A and B to salinity tolerance was almost not detected . The developed rice line exhibited salinity tolerance to 6ds/m or greater but it is sensitive to shortday photoperiod and is being improved to longday photoperiod.