刈割次数对紫花苜蓿根系中保护酶活性的影响  

Effect of Cutting Frequencies on Protective Enzyme Activities in Root of Alfalfa

作　　者：迟文峰[1] 刘丹丹[1] 李钢[1] 崔国文[1] 

机构地区：[1]东北农业大学动物科学技术学院,黑龙江哈尔滨150030

出　　处：《中国草地学报》2006年第4期111-114,共4页Chinese Journal of Grassland

基　　金："十五"国家重大科技专项"奶牛重大关键技术研究与产业化技术集成示范"支课题(GZ02B022)

摘　　要：在哈尔滨地区对当年种植的紫花苜蓿进行不同刈割次数处理,越冬期间取样测定其根系中过氧化物酶(POD)和超氧化物岐化酶(SOD)活性。结果表明:不同刈割次数对越冬期间紫花苜蓿的POD和SOD活性具有显著的影响,超过1次的刈割会显著降低紫花苜蓿的POD和SOD活性及抗寒能力,并且随着刈割次数的增加紫花苜蓿的POD和SOD活性及抗寒能力随之下降。Alfalfa newly planted was cut for different times,enzyme activities of alfalfa during winter were studied in Harbin.The result indicated that different cutting frequencies had significant effect on POD and SOD in root of alfalfa during winter,and if cutting frequencies was more than one,POD activities,SOD activities and cold resistant ability of alfalfa would decrease;besides,the POD activities,SOD activities and cold resistant ability of alfalfa would decrease with the increase of cutting times.

关 键 词：紫花苜蓿 刈割次数 过氧化物酶活性 超氧化物岐化酶活性 

分 类 号：S541[农业科学—作物学]