关键词: 黑果枸杞, 起垄高度, 抗盐碱性, 生理指标

Abstract: In order to explore the rational utilization mode of low-lying saline-alkali land, Lycium ruthenicum Murr. was used as test material，and three treatments of different ridging height, including 0 cm (non-ridging, H1), 20 cm ridging (H2) and 40 cm ridging (H3), were set up. The effects of different treatments on growth indexes, stress-resistance physiological indexes of L. ruthenicum were investigated. The results showed that the soil total salt content of ridging treatments was significantly higher than that of non-ridging treatment. The branch length and leaf area of ridging treatments were significantly higher than those of non-ridging treatment, and the leaf chlorophyll content of ridging treatments was significantly higher than that of the control in the later stage, except that in August. Soluble sugar content didn’t changed during different periods, while the content of proline increased significantly in the later stage, and the proline content of H2 treatment was significantly higher than that of the control. K+ content of leaves in ridging treatments was significantly higher than that of the control in August, but showed the opposite trend in October; while Na+ content of leaves during all periods showed a trend  that Na+ content of ridging treatments was significantly lower than that of the control. It was suggested that ridging treatments had more advantages in plant growth of L. ruthenicum. Although soil salt content was increased in ridging treatments, its effect on plant growth of L. ruthenicum was ignored; while the relatively reduced buried depth of groundwater table had a greater effect on the growth of L. ruthenicum. The present research have a certain theoretical guiding significance for standardized cultivation of L. ruthenicum in low-lying saline-alkali land.

Key words: Lycium ruthenicum Murr., ridging height, saline-alkali tolerance, physiological indexes