早熟高产优质杂交油菜新品种德恒油900的选育

Breeding of Dehengyou 900,a Hybrid Rape Variety with Early Maturity,High Yield and Good Quality

为促进四川省油菜产业的发展,培育适宜稻-油两熟制地区种植的早熟油菜品种,解决稻-油轮作地区作物接茬季节矛盾,避开不良天气对油菜生产的危害,南充市农业科学院油菜研究所以甘蓝型油菜细胞质雄性不育系南A5为母本,以油菜游离小孢子培养并染色体加倍选育获得的胞质不育恢复系23R为父本,配组育成甘蓝型早熟杂交油菜新品种德恒油900,2015年通过四川省农作物品种审定委员会审定。该品种2014年、2015年参加四川省油菜早熟组区域试验,平均产量2 718.00kg/hm2,较对照德油早1号增产10.05%;全生育期214d,与对照德油早1号熟期相当;芥酸含量未检出,硫苷含量22.93μmol/g饼,含油量平均42.95%,具有早熟、优质、高产、稳产、抗(耐)病及适应性广等特点。适宜四川省平坝、丘陵区及类似生态区种植。

To promote rape industry development in Sichuan Province,and breed early-maturity rape variety suitable for planting in rice-rape double-cropping area,which can solve the contradiction of planting and harvest and avoid adverse weather harm to rapeseed,Dehengyou 900,a new early-maturity hybrid rape variety,was crossed by Cytoplasmic Male Sterile line Nan A5 and restorer line 23 R with the method of microspore culture and chromosome doubling by Rapeseed Institute,Nanchong Academy of Agricultural Sciences.It was approved by the Variety Certification Committee of Sichuan Province in 2015,during Sichuan early-maturity regional tests in 2014 and 2015,the average yield was 2 718.00kg/hm2,10.05%higher than the control Deyouzao 1.The whole growth period was 214 dand was nearly equal to the control,and erucic acid content was not detected,the glucosinolate content was 22.93μmol/g（cake）,the average oil content was 42.95%.The variety is characterized by early maturity,high quality,high yield,stable yield,strong disease resistance and wide adaptability.It is suitable for growing in plain and hilly area in Sichuan Province.