[1]张艳玲,潘根兴,胡秋辉,等.叶面喷施硒肥对低硒土壤中大豆不同蛋白组成及其硒分布的影响[J].南京农业大学学报,2003,26(1):37-40.[doi:10.7685/j.issn.1000-2030.2003.01.009]
 ZHANG Yan ling,PAN Gen xing,HU Qiu hui,et al.Effect of foliar application of selenium on composition and selenium content of seed proteins of soybean grown in a low-Se soil[J].Journal of Nanjing Agricultural University,2003,26(1):37-40.[doi:10.7685/j.issn.1000-2030.2003.01.009]
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叶面喷施硒肥对低硒土壤中大豆不同蛋白组成及其硒分布的影响()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
26卷
期数:
2003年1期
页码:
37-40
栏目:
出版日期:
2003-02-28

文章信息/Info

Title:
Effect of foliar application of selenium on composition and selenium content of seed proteins of soybean grown in a low-Se soil
作者:
张艳玲潘根兴胡秋辉陈历程
南京农业大学资源与环境科学学院;食品科技学院,江苏,南京,210095
Author(s):
ZHANG Yan ling PAN Gen xing HU Qiu hui CHEN Li cheng
College of Resources, Environment Sciences; College of Food Science, Technology, Nanjing Agric Univ, Nanjing 210095, China
关键词:
大豆 蛋白质 低硒土壤 硒肥
Keywords:
selenium soybean seed protein low Se soil Se fertilizer
分类号:
S565.106.2
DOI:
10.7685/j.issn.1000-2030.2003.01.009
文献标志码:
A
摘要:
研究了叶面喷施Na2 SeO3 和自制生物硒肥对低硒土壤中大豆籽粒蛋白组分及其硒含量分布的影响。结果表明 :叶面施用含硒 180mg·L-1(施硒量为 2 0 0 g·hm-2 )的Na2 SeO3 和生物硒肥可使低硒土壤大豆硒含量达到 11~ 12mg·kg-1,而对产量没有显著影响。与对照相比 ,施硒后籽粒中蛋白质含量显著提高 ,而固体残渣降低。施硒不但提高了大豆水溶性蛋白含量 ,而且水溶性蛋白结合态硒上升 ,固体残渣结合态硒下降 ,故大豆对外源补充的硒有较高的生物利用效率 ;7S蛋白是水溶性蛋白中比较活跃的组分 ,施硒后其本身含量及含硒量均大幅度提高 ,显示出容易受外界环境硒浓度变化的特征。外源补硒不仅达到提高大豆硒水平的效果 ,而且可以提高大豆品质。施用生物硒肥的效果优于单施化学硒肥亚硒酸钠。总之 ,施用硒肥提高籽粒硒水平不失为食物链硒供应的有效方法。
Abstract:
Effects of foliar application with Na\-2SeO\-3 and Se bio fertilizer on the composition and Se content in soybean grains were studied in a low Se soil derived from sandy alluvium in central Jiangsu, China in 2000.Se fertilization was conducted once at flowering stage at a rate of 200 g·hm -2 by foliar spraying of solution containing Se 180 mg·L -1 . Soybean grain Se concentration was raised to 1112 mg·kg -1 under foliar application both with Na\-2SeO\-3 and Se bio fertilizer, without any negative effect on grain yield. Seed protein increased while solid residue decreased under Se fertilization. Meanwhile, protein bound Se was upraised much more significantly than solid residue bound Se was, demonstrating a better bio efficiency by soybean on applied Se. Grain protein 7S could be a sensitive indicator of Se supply in soybean as both its content in seed and Se concentration were most significantly increased under Se fertilization. The present experiment showed that exotic Se supply could not only high up the Se level in soybeans in low Se soil but also improve its nutritional quality as well. Thus, Se fertilization to plants would be a practical way to enhance the food chain Se level in areas dominated by low Se soils.

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备注/Memo

备注/Memo:
科技部973项目(G199901180803);江苏省科委项目(BE99135)
更新日期/Last Update: 2003-02-28