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分析了生长在常规和有机系统中的燕麦谷物的avenanthranides(AVAs)、羟基苯乙烯基甲酸(HCAs)、异吐昔酸蔗糖酯(TASE)的浓度,以及某些农学参数。按照瑞典常规和有机农业耕作方法的标准,于1998～2000年种植了3个燕麦品种(即Freja,Sang和Matilda),2种氮肥水平,3个重复。总体来说,不同年份、不同品种以及不同氮肥施用量的籽粒的AVA含量有显著的差异,但是由于使用常规或者有机耕作系统所引起的籽粒AVA含量的差异不明显。2000年试验的样品籽粒的AVA含量稍高,尤其是对于Matilda品种,并且籽粒的AVA含量受到高氮肥施用量的负面影响。HCAs也显示出品种和年份的差异,但不受氮施肥量或耕作系统的影响。HCA含量,Matilda品种的最高,1999年显著偏低。TASE浓度只表现出年际间的差异,与1998年和2000年的相比,1999年的TASE含量大约高出100%。AVA和HCA含量与产量和籽粒的比重呈负相关,而与籽粒蛋白质含量呈正相关。相反,TASE含量与产量呈正相关。导致酚类化合物中特定参数的波动的原因仍旧未知,但似乎影响产量和(或比重)的因子也会影响到燕麦籽粒中AVAs,HCAs和TASE的含量。
The concentrations of avenanthranides (AVAs), hydroxystyrenesulfonic acid (HCAs), sucrose ester (TASE), and some agronomic parameters were analyzed for oat grains grown in conventional and organic systems. Three oat cultivars (ie, Freja, Sang and Matilda), two nitrogenous fertilizer levels, and three replications were planted in 1998-2000 according to Swedish conventional and organic farming practices. In general, there were significant differences in the AVA content of kernels of different years, different varieties and different nitrogen application rates, but there was no obvious difference in the AVA content of the kernels due to the use of conventional or organic farming systems. The sample kernels tested in 2000 had a slightly higher AVA content, especially for the Matilda variety, and the AVA content of the kernel was negatively affected by the high nitrogen fertilizer application. HCAs also show differences between breed and year, but are not affected by nitrogen fertilization or farming system. HCA content, the highest Matilda species, significantly lower in 1999. TASE concentrations showed only inter-annual differences, which were about 100% higher in 1999 than in 1998 and 2000. AVA and HCA contents were negatively correlated with grain yield and kernel weight, but positively correlated with grain protein content. In contrast, TASE content was positively correlated with yield. The cause of the fluctuations in specific parameters in phenolic compounds remains unknown, but it seems that the factors that affect yield and / or specific gravity also affect AVAs, HCAs and TASE in oat grains.