宁夏水稻孕穗开花期耐冷性鉴定  

The Identification of Cold Tolerance Within Booting Blossom Stage of Ningxia Japonica Rice

作　　者：孙建昌[1] 安永平[1] 杨生龙[1] 马静[1] 王兴盛[1] 韩龙植[2] 庄海[3] 

机构地区：[1]宁夏农林科学院农作物研究所,宁夏永宁750105 [2]中国农业科学院作物科学研究所/国家农作物基因资源与基因改良重大科学工程/农业部作物种质资源利用重点开放实验室,北京100081 [3]宁夏青铜峡市农业技术推广服务中心,宁夏青铜峡751600

出　　处：《种子》2013年第3期14-18,共5页Seed

基　　金：宁夏自然科学基金项目(编号:NZ 0988;NZ 1180);宁夏回族自治区"5183"科技重大专项-水稻高产节水新品种选育;国家水稻产业技术体系银川综合试验站

摘　　要：利用冷水胁迫和自然低温对宁夏29份水稻进行孕穗开花期耐冷性鉴定,结果表明:自然低温鉴定结果更准确,适合宁夏水稻种质孕穗开花期耐冷性鉴定。参试材料中宁粳12、宁粳23、宁粳35、宁粳28、宁粳16、宁粳41、宁粳36和富源四号孕穗开花期耐冷性强,可作为耐冷育种重点材料。29 japonica rice of Ningxia were evaluated to cold tolerance at the booting stage under natural low temperature and cold water irrigation. The results showed that the natural low temperature identification was more accurate to evaluating cold tolerance at the booting stage for rice of Ningxia. The materials of strong cold tolerance at the booting stage were Ningjing 12, Ningjing 23, Ningjing 35, Ningjing 28, Ningjing 16, Ningjing 41, Ningjing 36 and Fuyuan 4 ,which could be used as focus material for cold tolerance breeding.

关 键 词：水稻 孕穗开花期 耐冷性 

分 类 号：S511.22[农业科学—作物学]