摘要： 用含有14C标记的外源糖（葡萄糖和蔗糖）的示踪试验表明，外源糖引入2d即可运转到植株各个部位，果实、幼嫩茎、叶等库性器官的持有量占较大比例；黄瓜对外源葡萄糖的吸收量显着多于蔗糖；根系对外源葡萄糖的外泌现象重于蔗糖，从而对根系不同外源糖的持有量产生极显着的影响。

关键词: 黄瓜, 外源糖, 吸收, 运转

Abstract: Tracer experiment of exogenous sugars(glucose and sucrose),which marked with ¹⁴C,suggested that ¹⁴C could be translocated to every part of plant 2 days after their introduction .The absorption amount of exogenous ¹⁴C-glucose by cucumber was much more than that of ¹⁴C-sucrose.In the exosmosis amount of exogenous sugars in roots,glucose was greater than sucrose,which made an extremely significant influence on the amount of g lucose and sucrose in roots.

Key words: Cucumber, Exogenous sugar, Absorption, Translocation

中图分类号: 

• S642.201