【摘要】 为了探究亚硒酸钠对甜荞籽粒品质的影响，采用盆栽试验，通过设置不同质量浓度的硒（0(CK)、0.50、1.00、2.00、4.00 mg/L）和喷施次数（1、2次）研究亚硒酸钠对甜荞产量、可溶性糖、还原糖、淀粉、蛋白质、槲皮素、芦丁、黄酮、硒含量的影响。结果表明，与CK相比，硒质量浓度为1.00 mg/L、喷施次数为1次的单株粒数与百粒质量分别提高了61.82%、105.88%，产量提高了233.16%；硒质量浓度为0.50 mg/L、喷施次数1次的可溶性糖、槲皮素含量分别提高了2.65、1.42倍，且差异显著；喷硒1次后，所有处理的还原糖含量增加了28.38%～48.65%，其中，以硒质量浓度为1.00 mg/L、喷施次数为1次处理最高，且差异显著，而喷硒2次的硒处理还原糖含量均有降低的趋势，降幅为5.41%～10.81%，差异不显著；硒质量浓度为1.0 mg/L、喷施次数2次的蛋白质、黄酮及芦丁含量与CK相比，分别提高了238.61%、93.64%、300.59%，且差异显著；硒质量浓度为0.50 mg/L、喷施次数1次的淀粉含量与CK相比，显著增加了10.15%，其余处理的淀粉含量显著降低，降幅为17.41%～63.58%。所有叶面喷施亚硒酸钠处理均显著提高了籽粒中硒含量，而各硒处理间差异不显著，平均硒含量为0.10μg/g，硒质量浓度为0.50 mg/L、喷施次数1次处理最经济环保。更多还原

【Abstract】 To study the effect of sodium selenite on grain quality of common buckwheat, in this study, a pot experiment was conducted to design different mass concentrations of selenium(0, 0.50, 1.00, 2.00, 4.00 mg/L) and spraying times(1 time and 2 times), aiming to study the effects of sodium selenite on the yield, contents of soluble sugar, reducing sugar, starch,protein, quercetin, rutin, flavonoid, and selenium in common buckwheat. The results showed that compared with the control,the grain number per plant and 100-grain weight increased by 61.82% and 105.88%, respectively, and yield increased by233.16% in the treatment of 1.00 mg/L of mass concentration of selenium and one time of spraying;the contents of soluble sugar and quercetin increased by 2.65 and 1.42 times in the treatment of 0.50 mg/L of mass concentration of selenium and one time of spraying times, respectively, and the difference was significant. The reducing sugar contents of all selenium treatments increased by 28.38%-48.65% when spraying selenium once, and the content was the highest in the treatment of 1.00 mg/L of mass concentration of selenium and one time of spraying, and the difference was significant. The selenium spraying treatments with two selenium sprays generally showed a tendency to decrease the reducing sugar content by 5.41%-10.81%, but the difference was not significant. Compared with the control, the contents of protein, flavonoids, and rutin in the treatment of 1.00 mg/L of mass concentration of selenium and two times of spraying increased by 238.61%, 93.64%, and 300.59%, respectively, and the difference was significant. The starch content significantly increased by 10.15% in the treatment of 0.50 mg/L of mass concentration of selenium and one time of spraying, and the other treatments significantly reduced the content by 17.41%-63.58%. All the treatments significantly increased the selenium content in the grains, there was no significant difference between the selenium treatments, with an average selenium content of 0.10 μg/g, the treatment of 0.50 mg/L of mass concentration of selenium and one time of spraying was the most economical and environmentally friendly.更多还原