超低水分贮藏对几种高油分种子生理特性的影响  

Effects of Ultra-Low Moisture Content in Storage on Physioiogical Properties of Some Lipid-Rich Seeds

作　　者：周祥胜 毕辛华[2] 

机构地区：[1]浙江省种子公司,杭州310016 [2]浙江农业大学,杭州310029

出　　处：《种子》1993年第5期12-15,共4页Seed

摘　　要：试验对超低水分贮藏的四种高油分种子生理特性变化进行了研究。结果表明,油菜、萝卜种子活力与浸泡液电导率呈负相关,而不同活力的芝麻种子浸泡液电导率间无显著差异。经50℃老化贮藏14天后,超低水分的油菜、萝卜种子能保持较高的脱氢酶活性(油菜种子水分:0.7%～3.3%,萝卜种子水分:0.9%～3.2%)和过氧化物酶活性(油菜种子水分:0.7%～2.8%.萝卜种子水分:0.9%～3.2%)。高温贮藏后,水分为1.2%～3.0%的油菜种子活力较强,具较高的超氧物歧化酶活性。油菜、萝卜、种子内源激素脱落酸(ABA)的含量随种子活力下降而显著上升,水分为5.1%(低活力)的油菜种子ABA含量是水分为1.2%(高活力)种子的3.7倍,萝卜种子胚中轴(胚本部)中ABA含量大大高于子叶中的含量,前者是后者的3～6倍。This paper deals with the effects of ultra-low moisture content in storage on physiological properties of four kinds of lipid-rich seeds. The results suggusted that the vigour of rape and radish seeds was negative coorrelative with the electrical conductivity in soaking solution, but there were not significant difference among the electrical conductivities in soaking solution of sesame seeds with various vigour. After storage at 50°C for 14 days, the rape and radish seeds with ultra-low moisture content (MC...

关 键 词：超低水分 脱氢酶 超氧物歧化酶 脱落酸 

分 类 号：S3[农业科学—农艺学]