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对小麦鄂恩4号、998042 2个品种(系)施用3种不同含硒量的富硒矿粉,结果表明:①施用富硒矿粉能够提高小麦植株的含硒量,3种矿粉处理的茎、叶含硒量为0.032～0.055 mg/kg,平均0.043 8 mg/kg,比对照增加143.3%;②高含硒量富硒矿粉的效果优于低含硒量矿粉,但施用含量为1 494 mg/kg矿粉的小麦茎叶平均含硒量比含量为104 mg/kg的矿粉仅高65.81%,说明较低含量的矿粉同样具有应用价值;③不同时期的小麦含硒量不同,苗期较低、后期较高,说明硒元素在小麦中存在着一个积累过程;④不同遗传基础小麦品种(系)的聚硒效果不同,鄂恩4号小麦的富硒效果优于998042品系,两者在苗期的差别较大,灌浆期的差别较小。
Three kinds of selenium-enriched ores with different selenium contents were applied to two wheat varieties (lines) E’en 4 and 998042. The results showed that: ① application of selenium-enriched ores increased selenium content in wheat plants, The leaf selenium content was 0.032 ~ 0.055 mg / kg, with an average of 0.043 8 mg / kg, which was 143.3% higher than that of the control. ② The effect of high selenium content selenium-enriched ore powder was better than that of low selenium- The average content of selenium in stems and leaves of wheat with the content of 1 494 mg / kg was only 65.81% higher than that of 104 mg / kg, which indicated that the lower content of mineral flour also had the application value. ③ The content of wheat in different periods Selenium content is different, the seedling stage is low, the latter is higher, indicating that there is a selenium accumulation process in wheat; ④ different genetic basis wheat varieties (lines) of different selenium effect, In the 998042 strain, the difference between the two was greater at the seedling stage and the difference at the filling stage was smaller.