几种新优园林植物耐盐性初探

A Preliminary Study on Salt Tolerance of Several New Excellent Garden Plants

通过盆栽试验,对白雪果、邱园蓝莸、矮生一枝黄等11种新优园林植物进行了浇盐试验。用硫酸钠和氯化钠的混合盐,按土壤中盐浓度为0,0.2%,0.4%,0.6%,0.8%,1.0%,1.2%给供试植物浇盐。分析了不同浓度下供试植物的存活状况、叶片的盐害症状和盐胁迫对株高的影响。结果表明,供试植物中,白雪果、矮生一枝黄等耐盐达到0.6%以上,为耐盐性强的植物;邱园蓝莸、银露梅等耐盐在0.4%以下,为轻度耐盐或不耐盐植物。

Through potted experiments,11 kinds of new excellent garden plants such as Symphoricarpos albus,Caryopteris clandonensis,Ericameria nauseosawere are tested on salt tolerance.Using a mixture of sodium sulfate and sodium chloride,the concentration of salt in the soil are 0%,0.2%,0.4%,0.6%,0.8%,1.0%and 1.2%respectively.The effects of plant survival,leaf salinity and salt stress on plant height at different concentrations are analyzed.The results show that among the test plants,Symphoricarpos albus、Ericameria nauseosawere with a salt tolerance of more than 0.6%,are a salt-tolerant plant.While Caryopteris clandonensis,Potentilla glabrahad with salt tolerance of less than 0.4%,are mild salt tolerance or non-salt tolerance plants.