耐盐碱转基因大豆(SRTS)生存竞争能力评价  

Assessment of Competitive Ability for a Salinization Resistence Transgenic Soybeans Line

作　　者：刘琦[1] 夏善勇[1] 刘昭军[1] 谭巍巍[1] 刘鑫磊[2] 吴滨[1] 李希臣[1] 

机构地区：[1]黑龙江省农业科学院生物技术研究所/作物与家畜分子育种重点实验室,黑龙江哈尔滨150086 [2]黑龙江省农业科学院大豆研究所,黑龙江哈尔滨150086

出　　处：《大豆科学》2017年第3期371-376,共6页Soybean Science

基　　金：黑龙江省自然科学基金面上项目(C201130);国家转基因重大专项(2009ZX08011-025B);哈尔滨市科技局创新人才项目(2013RFQYJ050);黑龙江省农业科学院院级科研项目(2017BZ04)

摘　　要：为评价转BADH基因耐盐碱大豆(SRTS)在盐碱条件下的生存能力,在安达市盐碱地比较了耐盐碱转基因大豆(SRTS)、受体大豆黑农35和当地栽培品种抗线王的竞争性(出苗率、复叶数、株高)、自生苗、种子落粒性和繁育能力(生育时期和产量)。分期播种4次,适宜季节和非适宜季节各2次。结果表明:在适宜季节SRTS和抗线王竞争性相似,而受体品种竞争性弱于二者,在非适宜季节3个品种的竞争性差异不显著;SRTS产生自生苗的可能性很小;SRTS的落粒性不强;在适宜季节SRTS的繁育能力最强,抗线王居中,受体品种最弱,SRTS更适于盐碱地生长;在非适宜季节3个大豆品种的繁育能力相似。综合分析上述指标,由此表明SRTS并没有因为转入外源基因而具有更强的适应能力和生存竞争能力,自身杂草化风险很小。In this study, in order to evaluate the survival ability of BADH sah-tolerant transgenic soybean （SRTS） in saline- alkali environment, some indicators such as the competition ability（ number of seedling, number of compound leaf, plant height）, volunteer possibility, seed shattering and reproduction ability （ growth period and yield） , were analyzed between SRTS, recipient variety and conventional soybean ‘Kangxianwang’in saline-alkali land of Anda city. All kinds of soybeans were respectively planted 2 times in appropriate and not appropriate seasons. The results showed that in appropriate season, the competition ability of ‘ SRTS’ was similar with ‘ Kangxianwang’, but that of recipient variety was less than ‘ SRTS’and ‘Kangxianwang’. In unfavorable season, the competition ability was not significantly difference between three varieties. Be- sides the SRTS viability of seed shattering and volunteering ability was obviously weaker. In appropriate season, SRTS repro- duction ability was the best, the next was ‘Kangxianwang’ , the weakest was recipient variety, and in unfavorable season the reproduction ability were similar between the three varieties. Therefore this showed that SRTS was fit for planting on saline-al- kali soil. Comprehensive analysis of the above indicators, the results indicated that ‘ SRTS’ surviving competition and adap- tive ability were not stronger than non-transgenic plants due to import exogenous gene, and it had the lowest potential weedi- ness.

关 键 词：耐盐碱转基因大豆 生存竞争 繁殖能力 

分 类 号：S565.1[农业科学—作物学]