玉米耐低磷基因型的筛选  

Genotypes Selection on Tolerance to Low Phosphorus Stress in Maize

作　　者：史向远[1] 王秀红[1] 韩彦青[2] 胡婉平[1] 白建荣[2] 刘惠民[3] 

机构地区：[1]山西省农业科学院现代农业研究中心,山西太原030031 [2]山西省农业科学院作物科学研究所,山西太原030032 [3]山西省农业科学院,山西太原030006

出　　处：《山西农业科学》2012年第3期217-220,223,共5页Journal of Shanxi Agricultural Sciences

基　　金：国家转基因生物新品种培育重大专项(2009ZX08003-017B);山西省农业科学院育种工程项目(YYZJC0921)

摘　　要：试验以生物量、磷积累量、根冠比以及磷的利用效率为指标,采用液体培养试验,研究了36个玉米自交系苗期对低磷胁迫的反应。结果表明,不同自交系对低磷胁迫的反应不同,对磷的吸收和利用能力存在差异,大部分自交系属磷低效不敏感材料;初步筛选出3个典型的玉米磷高效基因型材料478、太系113和丹340,2个玉米磷低效基因型材料P138和F349。36 maize inbred lines at seedling stage were used to study their reaction to low phosphorus stress.The results showed that different lines responded differently to low-P stress and there were differences in P-uptake and P-utilization.biomass,P-accumulation,ratio of roots to shoots and P-utilization efficiency were used as a screening standard.Result showed that most inbreeds were low P efficiency genotypes.478,TX113 and D340 were high P efficiency genotypes,and P138,F349 were low P efficiency genotypes.

关 键 词：玉米自交系 磷利用效率 低磷胁迫 

分 类 号：S513.032[农业科学—作物学]