罗汉果微量元素的花粉直感效应研究

Study on xenia effect on trace elements of Siraitia grosvenorii

用ICP-OES法测定罗汉果中受花粉直感效应影响明显的微量元素含量。结果表明:两种不同授粉处理的罗汉果样品中Zn、Fe、Cr、Al四种微量元素含量差异显著,受花粉直感作用的影响较大,尤其是Zn元素;罗汉果样品铅含量超过罗汉果行标NY/T 694-2003的限量标准,但符合药用植物绿色行标WM/T 2-2004,研究认为,罗汉果行标Pb标准不太严格,有必要进一步研究和探讨;高甜苷Ⅴ授粉组合("青皮3号"×"红毛1号")果实中B元素含量较高,为硼微肥的利用提供科学依据;而低甜苷Ⅴ组合("青皮3号"×"红毛2号")果实中8种微量元素含量偏高,其中锰与提高呼吸速率有关。

The xenia effect on trace elements in Siraitia grosvenorii,in which mogroside V content had been affected significantly by pollen source, was demonstrated by determining of several kinds of trace elements by ICP-OES. Four kinds of trace elements content,Zn, Fe,Cr and Al, had significant deviation in the two S. grosvenorii samples pollenized by two kinds of foreign pollens,therefore it demonstrated that xenia existed apparently. The Pb content in the two samples was hyper-standard because of strict standard of Pb in the NY/T 694-2003, while which was consistent with Pb standard of WM/T 2-2004;So we deemed that the standard of Pb in the NY/T 694-2003 was too strict and needed to be researched and discussed. The higher content of B in the fruits of ＂Qingpi 3＂× ＂Hongmao 1＂, which had higher mogroside V,provided the scientific basis for B trace element fertilizer; The higher content of 8 kinds of trace elements was found in fruits of ＂Qingpi 3＂×＂Hongmao 2＂combination,in which Mn can boost respiratory rate.