辣椒种子的超干研究  

Studies on ultra-dry of pepper seeds

作　　者：李玉红[1] 对三汗[1] 陈鹏[2] 唐爱均[1] 周存田[1] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨陵712100 [2]西北农林科技大学生命科学学院,陕西杨陵712100

出　　处：《西北植物学报》2003年第4期663-666,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：西北农林科技大学青年教师基金 6321640808

摘　　要：辣椒种子含水量 MC 降至5%以下,能显著提高抗老化劣变的能力.在同等老化处理 50℃15d 后,对照种子 MC=7.5% 发芽势已大幅度下降,而超干种子 MC=4.1%～1.4% 的发芽势与未老化种子相同.超干种子脱氢酶活性明显高于同等老化条件下的对照种子,而丙二醛的含量则显著低于对照种子.电导率测定结果表明,超干种子细胞膜系统的完整性良好.Pepper seeds became more tolerant to aging condition if they could be dried to below 5% of moisture content.Under the same aging condition,the germination energy of seeds with 7.5% of moisture content has decreased signally,while that of ultradried seeds still kept high level.The dehydrogenase activity of ultradried seeds were higher than that of the control (MC 7.5% aging treatment).Malonadehyde (MDA) and electric conductivity were decreased in ultradried seeds.Therefore ultradried seeds could improve the storability.

关 键 词：辣椒种子 超干 脱氢酶 丙二醛 电导率 含水量 老化 保存 

分 类 号：S641.3[农业科学—蔬菜学]