硫素对不同基因型大豆脂肪酸含量的影响

Effect of Sulfur on the Accumulation of Fatty Acid in Different Soybean Varieties

为了提高大豆脂肪酸含量,改善大豆品质,通过施用硫素,揭示其对不同基因型大豆脂肪酸含量的影响,寻找3个基因型品种最佳施硫水平。选用‘黑农37’(HN37)、‘黑农44’(HN44‘)黑农48’(HN48)3个大豆品种作为试验材料,采用盆栽,每个品种设S1、S2、S3、S44个硫处理(即每千克土壤施用单质硫0、0.02、0.04、0.06 g)。采用高效气相色谱法,对成熟大豆籽粒脂肪酸的含量进行测定。结果表明:3个基因型大豆籽粒中脂肪酸含量均有所增加。同一处理不同品种HN44含量增加较为明显,同一品种不同处理S3条件下各脂肪酸含量增加较为明显。并且在S3条件下,HN37和HN48籽粒中出现了微量的豆蔻酸;HN44籽粒中亚油酸和硬脂酸2种脂肪酸含量均远高于其他品种;HN48籽粒中油酸的含量最高;HN44、HN48和HN37三个基因型大豆籽粒中α-亚麻酸和棕榈酸含量差异不明显。施硫对3个大豆品种脂肪酸含量有影响,适宜的施硫量有利于提高大豆脂肪酸的含量。

In order to improve the soybean fatty acid content, improve the quality of soybean, through the use of sulfur, reveal the influence of different genotypes of soybean fatty acid content and search for of the best sulfur level of the 3 genotypes. 3 soybean varieties （＇Heinong48＇, high-protein cuhivar; ＇Heinong37＇, middle cuhivar; and ＇Heinong44＇, high-oil cuhivar） grown more in Heilongjiang Province were investigated. The soybean seeds were planted in pots. 4 levels of sulfur （S） treatment were designed, which were S1,S2, S3 and S4 （0, 0.02, 0.04, 0.06 g of sulfur per kilogram of soil）. Used gas chromatography, the content of the mature soybean fatty acid was determined. It showed that： the fatty acid content of three genotypes of soybean seed were all increased. The same treatment for different varieties of NH44 content increased obviously, with the same variety S~ under different conditions of fatty acid content increased obviously. Under S3 condition, a small amount of myristic acid appeared in HN37 and HN48 grain; linoleic acid and stearic acid content of HN44