硫硅配施对水培青蒜苗生长、光合特性及品质的影响

采用深液流水培方式研究硫硅配施对大蒜青蒜苗生长、光合特性及品质的影响。结果表明,硫硅配施可以明显提高青蒜苗株高、假茎长、假茎粗、光合色素含量和光合参数,其中2 mmol·L~(-1)硫配施1.50 mmol·L~(-1)硅效果最佳。适宜浓度的硫硅配施有利于提高青蒜苗中大蒜素、可溶性蛋白、可溶性糖、VC含量,其中硫浓度2～3 mmol·L~(-1)配施硅浓度0.75～1.50mmol·L~(-1)效果最好。综上,硫浓度2 mmol·L~(-1)配施硅浓度0.75～1.50 mmol·L~(-1)最有利于水培青蒜苗的生长和品质。

Effect of Applying Sulfur and Silicon Combination on Growth，Photosynthetic Characteristics and Quality of Garlic Seedling by Hydroponic Culture

This paper studied on the effect of applying sulfur-silicon combination on the growth， photosynthetic characteristics and quality of garlic seedling by adopting the method of deep liquid flow hydroponics. The results showed that this combination could improve the plant height，cauloid width and length of garlic seedling，and also enhance the photosynthetic pigments content and photosynthetic parameter. The most prominent effect was found in concentrations of 2 mmol·L^-1 sulfur with 1.50 mmol·L^-1 silicon. Suitable concentration of sulfur and silicon combination was in favor of increasing the contents of allicin，soluble protein，soluble sugar and VC. The best effect could be gained in the concentration of 2-3 mmol·L-1 sulfur combined with 0.75-1.50 mmol·L^-1 silicon. In conclusion，the concentration of 2 mmol·L^-1 sulfur combined with 0.75-1.50 mmol·L^-1 silicon was the most beneficial for the growth and quality of garlic seedling by hydroponic culture.