CAJ | 학술논문

采用纸培法，用不同浓度NaCl单盐溶液(0%、0.3%、0.6%、0.9%、1.2%)处理雪菊种子，研究不同浓度盐胁迫对种子萌发的影响。结果表明：随着盐浓度的升高，雪菊种子的发芽率、发芽势、发芽指数、活力指数都有所降低，在0%～0.9%盐浓度范围内，各性状指标与对照差异不显著，1.2%盐浓度下与对照形成显著差异。低浓度(0.3%)盐胁迫对雪菊种子萌发有促进作用，发芽率为87%，高于对照3个百分点，盐浓度超过0.9%时，明显延迟种子发芽时间，发芽率为57%，低于对照27个百分点。雪菊种子萌发时的耐盐适宜范围为0%～1.3%，耐盐半致死浓度为2.25%，耐盐极限浓度为3.83%，可在河北滨海滩涂盐渍化土壤地区推广种植。
채용지배법，용불동농도NaCl단염용액(0%、0.3%、0.6%、0.9%、1.2%)처리설국충자，연구불동농도염협박대충자맹발적영향。결과표명：수착염농도적승고，설국충자적발아솔、발아세、발아지수、활력지수도유소강저，재0%～0.9%염농도범위내，각성상지표여대조차이불현저，1.2%염농도하여대조형성현저차이。저농도(0.3%)염협박대설국충자맹발유촉진작용，발아솔위87%，고우대조3개백분점，염농도초과0.9%시，명현연지충자발아시간，발아솔위57%，저우대조27개백분점。설국충자맹발시적내염괄의범위위0%～1.3%，내염반치사농도위2.25%，내염겁한농도위3.83%，가재하북빈해탄도염지화토양지구추엄충식。
In order to explore the salt resistant ability of xueju, this study was carried out to determine the germination ability of the seeds, which were treated with various concentration of NaCl solution in Petri dish, salinty ranging from 0.3%to 1.2%. The results showed that the germination rate, germination enrgy, germination index and vigor index were decreased visibly with increasing salt concentration. Under 0%~0.9%salinty range, each character indexes showed no significant difference compared to the control, but 1.2%treatment has significant difference. In lower salt concentration like 0.3%promoted seeds germination, the germination rate was 87%, higher control 3 percent point. When the salt concentration exceeding 0.9%, the germination time was signficantly delayed, and the gemination rate was 57%, lower control 27 percent point. The fit salt concentration for xueju seed germination was 0%~1.3%, and the half-lethal concentration and fatal concentration was 2.25%and 3.83%, respectively. Xueju has strong salt resistance, can be cultivated in the salinity soil in Hebei province.