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应用生态学报 ›› 1993, Vol. 4 ›› Issue (3): 303-307.

• 研究论文 • 上一篇    下一篇

外源Se对农作物籽实中Se的化学形态及其品质的影响

崔剑波, 尹昭汉   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1992-12-28 修回日期:1993-04-09 出版日期:1993-07-25 发布日期:1993-07-25

Influence of supplemented selenium on chemical forms of selenium in crop seeds and their quality

Cui Jianbo, Yin Zhaohan   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1992-12-28 Revised:1993-04-09 Online:1993-07-25 Published:1993-07-25

摘要: 本文以喷Se、施Se作为外源Se,将作物籽实中的Se分为水溶态、K2SO4可提态、NaOH可提态、残余态4种形态.结论认为NaOH可提态Se、水溶态Se为作物籽实中Se的主要存在形态,其中Se(Ⅵ)在各形态Se中占有一定比例,并随外源Se的增加而变化.同时,外源Se可改变作物体内各组分Se的比例,并使大部分氨基酸的含量有所增加,进而对其遗传特性可能带来影响.

关键词: 外源Se, Se的化学形态, 氨基酸, 土壤微生物量碳氮, 高寒草甸, 酶, 退化, 碳源代谢

Abstract: Supplemented selenium in seeds can be classified as water soluble, K2SO4 extractable, NaOHextractable and non-extractable forms, and the main ones are NaOHextractable and water soluble Se. Se (Ⅵ) occupies a certain proportion in various forms of Se and varies with increasing supple mented Se. The proportion of various forms of Se in crop seeds is varied with supplement of Se, which can increase the amino acid content in seed and may influence its hereditary characteristics.

Key words: Supplemented selenium, Chemical forms of selenium, Amino acid, carbon metabolic index, degradation, soil microbial biomass C and N, alpine meadow, enzymes