The effects of diethyl aminoethyl hexanoate (DA-6) with different concentrations on the growth and selenium (Se) uptake of grape seedlings were studied by a pot experiment. When the concentration of DA-6 was not higher than 20 mg/L, the biomass, photosynthetic pigment content, antioxidant enzyme activity, and Se content of grape seedlings had the increase trend. Then it decreased when the concentration of DA-6 was higher than 20 mg/L. At the concentration of 20 mg/L DA-6, the level of biomass, photosynthetic pigment content, antioxidant enzyme activity, and Se content of grape seedlings got the maximum. Compared to the control, the concentration of 20 mg/L DA-6 increased the root and shoot biomass by 37.46% and 27.55%, respectively, and increased the Se contents in roots and shoots by 51.45% and 111.41%, respectively. The net photosynthetic rate, transpiration rate, stomatal conductance, and CO₂ concentration of intercellular of grape seedlings had the same changing trend as that of the biomass with the increase in DA-6 concentrations, while the vapor pressure deficit of leaf had the opposite trend. Therefore, at 20 mg/L DA-6 concentrations, it was found to promote the growth and improve the Se uptake of grape.

通过盆栽试验研究了不同浓度氨基乙基己酸二乙酯(DA-6)对葡萄幼苗生长和硒(Se)吸收的影响。当DA-6浓度不高于20 mg/L时，葡萄苗的生物量、光合色素含量、抗氧化酶活性和Se含量均呈上升趋势。然后当DA-6的浓度高于20mg/L时下降。DA-6浓度为20 mg/L时，葡萄苗的生物量、光合色素含量、抗氧化酶活性和Se含量均达到最大值。与对照相比，20 mg/L DA-6浓度使根和地上部生物量分别增加37.46%和27.55%，根和地上部硒含量分别增加51.45%和111.41%。净光合速率，₂的细胞间葡萄苗的浓度具有相同的变化趋势作为与在DA-6的浓度的增加生物质，而叶的蒸气压赤字有相反的趋势。因此，发现在 20 mg/L DA-6 浓度下，可促进葡萄的生长并提高其对硒的吸收。