起垄高度对黑果枸杞生长及生理特性的影响

为了探究低洼盐碱地的合理利用方式，以黑果枸杞为试验材料，设置不起垄（对照，H1）、起垄20 cm(H2)、起垄40 cm(H3)共3个栽培处理，研究不同起垄高度对黑果枸杞生长和抗逆生理指标的影响。结果表明：起垄处理的土壤全盐含量显著高于不起垄处理。起垄处理的植株枝长和叶面积显著高于不起垄处理；叶绿素含量除8月份外，其他时期均显著高于对照。可溶性糖含量不同时期的变化幅度较小。脯氨酸含量仅在后期大幅上升，其中H2处理显著高于对照。在8月份时起垄处理的叶片K+含量显著高于H1处理，10月份时则呈相反趋势；Na+含量则一直呈现出起垄处理显著低于对照的趋势。总的来看，起垄种植黑果枸杞更有优势，起垄处理虽增加了土壤盐分含量，但对黑果枸杞生长的影响较小，而相对降低的地下水位埋深对黑果枸杞的生长影响更大，研究结果对低洼盐碱地黑果枸杞的规范化栽培具有一定的理论指导意义。

Effect of Different Ridging Height on Growth and Physiological Characteristics of Lycium ruthenicum Murr.

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.