低温胁迫对玉米幼苗抗冷性鉴定  

The low temperature is forced combating cooling quality of the appraisal to the corn seedling

作　　者：朱祥春[1] 矫洪涛 史芝文[1] 袁海峰[1] 

机构地区：[1]东北农业大学生命科学院,哈尔滨150030

出　　处：《农业与技术》2004年第1期44-49,共6页Agriculture and Technology

摘　　要：本文研究了以25℃为对照,以5℃低温胁迫处理,水浸种和0.5%CaCl2浸种玉米幼苗测定5项生理生化指标结果表明:叶绿 素含量、根系活力、过氧化物酶活性降低;细胞膜透性相对电导率增加;过氧化物酶同工酶酶含量降低,种类减少。This text studied with 25 ℃ is check against, with 5 the low temperature of ℃s coerces to handle, the water immerses to grow to immerse to grow with 0.5% CaCl2 the corn young sprout measureses 5 physiology livings to turn the index sign result enuncia The chlorophyll contains the deal, root department vitality and lower over dioxygenas activity ;The cell membrane is deeply the opposite electric conductivity in sex rate increment ;dioxygenas、 isoenzyme enzyme contains the deal lowers ;The category reduces.

关 键 词：低温胁迫 玉米 幼苗 抗冷性鉴定 叶绿素 根系活力 过氧化物酶 细胞膜透性 

分 类 号：S513[农业科学—作物学]