富硒蒜苗的培植及其中硒对其它微量元素的影响

Cultivation of garlic shoots rich in selenium and the effects of Se on trace elements

本文以含硒较多的大蒜作为研究对象,通过培养,观察加硒对蒜苗生长的影响以及硒在蒜苗中富集的情况,并通过测定,研究硒与其它微量元素间的关系。材料仪器和试剂一、主要材料和仪器大蒜头:产地——山东历城

The Garlic Shoots was cultivated in Se-containing solutions with different concentrations. After cleaned, dried, and sampled, it was digested by HNO_3-HC10_4 and dissolved in dilute HCI.(?) aliquot was transferred for determination of Cu Zn Mn Fe by FAAS and another aliquot for determination of Se bv catalytic POL. It was found that the content ot Se was positively related to the concentration of Se-containing solution (0-30ppm)with a linear regression equation Y=76.06X-38.81 (r=0.9906). In higher concentrations, the growth of Garlic Shoots was inhibited and red elementary Se was precipicd on the surface of the roots. In addtion, the content of Se was in linear correlation with Cu Zu Mn and Fe. Thc correlation cofficients were -0.8999, -0.9512, -0.9101 and -0.9472 respectively.