生态遗传雄性不育理论与两系杂交植物Ⅲ．生态遗传雄性不育系的鉴定方法  

THE THEORY OF ECOLOGICAL-GENETICAL STERILITY AND HYBRID CROP PRODUCED BY TWO-LI NE METHOD Ⅲ.THE EXAMINA TION METHOD FOR ECOLO- GICALGENETICAL MALE STERILE LINES

作　　者：邹应斌 何觉民 戴君惕 周美兰 张海清 刘雄伦 欧仕益 杨友才 

机构地区：[1]湖南杂交小麦研究中心

出　　处：《湖南农学院学报》1995年第1期1-4,共4页

基　　金：国家自然科学基金

摘　　要：论述了生态遗传（光、温敏）雄性不育系的鉴定标准和方法。指出可供采用的生态遗传雄性不育系的育性表达必须在年际间表现稳定，在雄性不育阶段其不育株率应达到１００％，深不育单株不育度应达到９９．５％以上，浅不育单株不育度应达到９０％以上；在雄性可育阶段其可染花粉率应达到６０％以上，异交结实率应达到５０％以上。不论是长日光敏感型、短日光敏感型，还是高温敏感型或低温敏感型的雄性不育系，其育性鉴定应当同时在自然光温条件下、自然变温控制光周期条件下和人工定温控制光周期条件下进行。This paper introduces the standards and method for examinating ecological-ge- netical male-sterile lines(photoperiodic or thermoperiodic sensitive lines).It points out thatthe fertility of ecological-genetical male-sterile lines applicable must be shown as stable be- tween different years.In the period of male-sterility,the percentage of sterile plants ought tobe 100%,and the sterility is over 99.5%for the sterile lines which are weakly sensitive to e- cological conditions, and over 90% for the sterile lines which are strongly sensitive to ones;Inthe period of male-fertility,the pollenation grains stainable ought to be over 60%, and settinggrains of exogenous pollenation in over 50%.No matter that they are belong to long-day andshort-day sensitive type, or belong to high temperature and low temperature sensitive type, the fertile examination should be conducted under conditions of natural temperature and pho- toperiod, of natural temperature and control photoperiod and of control temperature and pho- toperiod.

关 键 词：雄性不育 温度 光周期 标准 两系法 生态遗传学 

分 类 号：Q346[生物学—遗传学]