耐旱水稻品种的选育与评价  

Study on Drought Tolerant Rice Breeding and Evaluation

作　　者：王广元[1] 李广信[1] 于晓慧[1] 梅青[1] 

机构地区：[1]山西省农业科学院作物科学研究所,山西太原030032

出　　处：《山西农业科学》2011年第7期635-639,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(042001);山西省农业科学院育种基础项目(YYZJC0926)

摘　　要：通过系统育种、杂交育种和外源DNA导入技术,采用水、旱作交叉选育法选育出一批优异耐旱水稻种质材料。并对栽培稻抗旱性鉴定方法与评价进行了研究分析,筛选出05082,05072,04旱25和04旱26等4个材料为抗旱高产品种。同时,利用室内水分胁迫鉴定和田间自然多重胁迫条件下的苗期及抽穗开花期与对照对比进行鉴定,并结合水旱田种植对比分析进行综合抗旱力鉴定,三者相结合的鉴定方法简便、直观、易掌握,便于育种者对品系进行初步筛选。We have selected a group of rice germplasm materials which express an excellent drought tolerance by means of common breeding,hybrid breeding and DNA translation introducing technology.Adopting to plant materials alternatively in paddy field and drought field,we also had 4 varieties 05082,05072,04 Han 25 and 04 Han 26 screened which expressed high resistance to drought and got high yield.At the mean time,we studied and analyzed all kinds of drought resistant appraisal methods and its evaluation to cultivated rice.It was concluded that the combination of the three methods make the breeding simple,direct and easy to screening better line primarily.

关 键 词：耐旱水稻 选育 抗旱性 鉴定与评价 

分 类 号：S511.603.2[农业科学—作物学]