不同生态型玉米品种低温下出苗机理研究  

Research on Seed Germination Mechanism of Different Ecotype Maize under Low Temperature

作　　者：李北齐[1] 张玉胡[2] 王贵强[1] 芦宝琳[1] 孟斌[1] 

机构地区：[1]黑龙江大学农业资源与环境学院,哈尔滨150080 [2]黑龙江八一农垦大学农学院,黑龙江大庆163319

出　　处：《中国农学通报》2011年第9期120-125,共6页Chinese Agricultural Science Bulletin

基　　金：黑龙江省科技厅科技攻关项目"优质多抗青贮玉米新品种丰禾4号高效集成技术研究与示范"(NB08B008)

摘　　要：为了探讨不同的玉米品种对冷害的抗性,本研究以黑龙江、吉林、辽宁、河北、河南、山西等地的10个玉米品种‘郑单958’、‘辽单565’、‘中地77’、‘永玉3’、‘山西708’、‘山西712’、‘银河32’、‘吉单1电98导’、率‘、九细单胞4内8’游、‘离龙脯单氨13酸’为含试量验、淀材粉料含,测量定。各研个究品结种果在表明5℃:低不温同和的玉25米℃恒品温种条在件低下温的下发的芽活率力、差吸异水应率与、24h内种子吸水率、电导率、细胞内游离脯氨酸含量、淀粉含量、细胞内各种酶的活性有关。经低温处理后,‘辽单565’的发芽率降幅最低,仅为5.34%,其次为‘龙单13’和‘中地77’,降幅分别为5.67%和7%,表明这3个玉米品种对冷害的抗性比较强,适合在黑龙江等冷害灾害较为常见的地区播种。This test studied the effect of low temperature on germination characters of seeds in different varieties of maize,which were ＇ Zhengdan 958 ＇,＇ Liaodan 565 ＇,＇ Zhongdi 77 ＇,＇ Yongyu 3 ＇,＇ Shanxi 708 ＇,＇ Shanxi 712 ＇,＇ Yinhe 32 ＇,＇ Jidan 198 ＇,＇ Jiudan 48 ＇,＇ Longdan 13 ＇.The author analyzed percentage of germination,water absorption,electrical conductivity,intracellular free proline content,starch content of different maize varieties under 5℃ and 25℃.Research results showed that different maize varieties of vigor at low temperature were different within 24 hours for seed water absorption,electrical conductivity,intracellular free proline content,starch content.After deal with low temperature,germination percentage of ＇ Liaodan565 ＇ was lower 5.34%,secondly was ＇ Longdan 13 ＇ and ＇ Zhongdi 77 ＇,which was lower 5.67% and 7%,respectively.The results showed that the antifreezing ability of the three varities were better,and were suit for seeding in the district where cold damage often happened such as Heilongjiang Province.

关 键 词：玉米种子 低温 出苗率 

分 类 号：S032[农业科学]