木槿属外来种质Hibiscus dasycalyx对NaCl胁迫的生理响应

Physiological Response of Exotic Germplasm of Hibiscus dasycalyx to NaCl Stress

采用盆栽试验,比较不同浓度NaCl胁迫下,从美国引进的木槿属植物Hibiscusdasycalyx叶片超氧化物歧化酶活性、细胞膜透性、脯氨酸含量、可溶性糖含量以及根茎叶K+、Na+浓度等生理指标的变化。试验表明,H.dasycalyx在NaCl胁迫具有一定的抗性,在沿海以及其他土壤盐分以氯化盐为主,土壤含盐量在6g/kg以下的地区具有一定应用价值。

In this study, pot experiments were conducted to compare the changes of SOD activity, cell membrane permeability, proline content,soluble sugar content,K +, Na + concentrations of root, stem, leaf in Hibiscus dasycalyx leaves imported from the United States under different concentrations of NaCl stress. H. dasycalyx had certain resistance to NaCl stress, and had certain application value for coastal and other soil salinity with chlorinated salt and soil salinity belows 6 g/kg.