微量元素硒对油菜苗期主要化学成分的影响

采用土培盆栽结合水培施用不同硒(Na2SeO3)浓度处理,研究硒对油菜苗期的主要化学成分的影响,结果表明:硒浓度小于18mg/L?,随补硒浓度的增加,油菜中蛋白质和氨基酸的质量分数增加,呈正相关,超过此浓度,随硒浓度上升,二者的质量分数不升反降;当硒浓度小于15 mg/L?,总糖的质量分数随硒浓度上升而提高,超过该补硒浓度,糖的质量分数开始下降.从提高油菜内含物分析,采用土培盆栽结合水培时,补硒浓度以15mg/L为宜.

Influence on Component of Microelement Selenum in Rape Seedling

With the way of culture in pots combined with solution culture,this article studies the effect of Selenium on main chemical composition of Brassica napus in seedling stage.The results indicate:the content of protein and amino acids increases with the rise of Selenium concentration while the Selenium concentration is below 18 mg/L,and it decreases while the Selenium concentration is beyond 18 mg Se/L;the total saccharide content increases with the rise of Selenium concentration while the Selenium concentration is below 15 mg/L,and it tends to decrease while the Selenium concentration is beyond 15 mg/L.Analysing from increasing inclusion,the optimum added Selenium concentration is 15 mg/L with the way of culture in pots combined with solution culture.