摘要
为了筛选寒地水稻苗期抗旱性强的种质资源,在干旱棚内进行水分胁迫,以地上干重、根长、株高和地下干重4个指标的相对值作为寒地水稻苗期抗旱性筛选的鉴定指标,对不同水稻品种(系)苗期的各项指标进行测定。结果表明:DPB112、DPB71、垦稻24号、DPB120等18份供试材料的抗旱性强,其中抗旱性最强的是DPB112。
In order to screen the rice germplasm resources with strong drought resistance at seedling stage,the 20%polyethylene glycol-6000 solution was used to simulate drought,that the relative coleoptile length,relative shoot length,relative shoot dry weight were used as screening for drought resistance identification indexes,and the indexes of different rice varieties(lines)were detemined.The results showed strong drought resistance varieties(lines)DPB112,DPB71,Longjing 4,DPB120,Songjing 16,DPB15 and DPB70 were screened out,among them,DPB112 had the strongest drought resistance.
作者
牛同旭
郑桂萍
李志彬
朱崴
唐占兵
Niu Tongxu(National Japonica Rice Engineering Technology Research Center,Tianjin 300457,China;Tianjin Tianlong Tech-nology Co.,Ltd,Tianjin 300457,China;Agronomy College of Heilongjiang Bayi Agriculutural University,Daqing 163319,China)
出处
《安徽农学通报》
2020年第13期21-24,共4页
Anhui Agricultural Science Bulletin
基金
滨海新区青年英才培育计划
天津市科委重点研发计划(18YFZCNC01250)
天津市农委项目(ITTRRS2018031)。
关键词
水稻
苗期
抗旱性筛选
综合评价
Rice
Seeding stage
Drought resistance screening
Comprehensive evaluation
