【作者】 王金英；

【导师】 郑金贵；

【作者基本信息】 福建农林大学 ， 作物遗传育种， 2002， 硕士

【摘要】 选用有代表性的不同种皮颜色类型的36个水稻推广品种和种质资源，比较分析了在不同环境（季节、地点）条件下，精米与米糠中Se、Cu、Fe、Zn、Ca和Mn 6种矿质元素含量的差异、变化趋势及其相关性。结果表明，①六种矿质元素在米糠中的含量均显著高于其在精米中的含量。其中Mn在米糠中的含量是其在精米中含量的13.07倍，其次为Fe12.76倍，Cu、Ca、Zn、Se依次为7.48倍、5.07倍、3.56倍、2.71倍。②筛选出精米中多种元素含量高，且在三个不同环境下稳定的品种：“FareBardhi”富含Se、Cu、Fe、Zn元素且较稳定；崇阳糯含Cu、Fe、Zn、Mn矿质元素高且稳定；培两优288中Se、Cu、Mn含量高且稳定。筛选出米糠中含多种元素高且稳定的品种有：福两优63（Se、Fe、Mn），培两优288（Cu、Fe、Mn），特优77和隆化大红欲（Cu、Fe、Zn）等。③．黑米精米中Ca含量(平均75.832ug.g^-1)极显著高于白米精米(63.876ug.g^-1)和红米精米(59.224ug.g^-1)；白米米糠中Mn含量(137.779ug.g^-1)极显著高于黑米米糠(119.739ug.g^-1)和红米米糠(113.967ug.g^-1)。其余的各元素含量没有明显变化趋势（即差异不显著）。④在3个不同环境条件下，精米、米糠中矿质元素含量均表现显著或极显著正相关的有：精米Se与米糠Se；精米Mn与米糠Mn；精米Zn与精米Mn：米糠Fe与米糠Zn。而米糠Fe与米糠Ca显著负相关。更多还原

【Abstract】 The thirty-six popular rice varieties and rice germplasm with typical and various color of seed skin, which were planted at various environmental circumstance (i.e. season and place), were employed to study the content of Se, Cu, Fe, Zn, Ca and Mn mineral element in their polished rice and rice bran, and the trend of variation and the correlation. The results of the research were as follows: (1)Mean content of all six elements in rice bran was significantly higher than that in polished rice. The content of Mn in rice bran was 13.07 times as much as that in polished rice, and the content of Fe. Cu, Ca, Zn and Se in rice bran was respectively 12.76 times, 7.48 times, 5.07 times, 3.56 times and 2.71 times as much as those in polished rice. (2)Several varieties with both higher and steadier content of multi-mineral elements in polished rice under three different surroundings were picked out. Such varieties as "Fare Bardhi", which contained higher and steadier content of Se, Cu, Fe and Zn, "chong yang nuo", which with higher and steadier content of Cu, Fe, Zn and Mn, " pei liang you 288",which had higher and steadier content of Se, Cu, Mn .Likewise, several varieties with both higher and steadier content of multi-mineral elements in rice bran were identified. Such varieties as fu liang you 63 ( Se Fe Mn ),pei liang you 288( Cu Fe Mn ),te you 77 and long hua da hong yu ( Cu Fe Zn ) and so on.(3)The content of Ca (75.832ug.g-l) in the black polished rice was significantly higher than that (63.876ug.g-l) in the white polished rice and that (59.224ug.g-l) in the red polished rice. The content of Mn (137.779ug.g-l) in the white rice bran was significantly higher than that (119.739ug.g-l) in the black rice bran and that (113.967ug.g-l) in the red rice bran. The other elements’ content was not significantly different in the various color kind of rice. (4)There were correlativities between the content of elements in polished rice and in rice bran. Under three various environments, it was significantly positive correlation that between Se in polished rice and Se in rice bran, between Mn in polished rice and Mn in rice bran, between Zn in polished rice and Mn in polished rice, between Fe in rice bran and Zn in rice bran. But it was significantly negative correlation that between Fe in rice bran and Ca in rice bran.更多还原