CAJ | 학술논문

采用盆栽试验法对花叶蔓长春和金叶过路黄进行盐胁迫处理，以了解两种植物的耐盐能力及耐盐性差异。对新梢生长量和相对生长量、叶片中游离脯氨酸（Pro）和丙二醛（MDA）含量、过氧化物酶（POD）和超氧化物歧化酶（SOD）活性等指标进行了测定分析。结果表明：随盐浓度升高，新梢生长量逐渐下降，花叶蔓长春的平均相对生长量高于金叶过路黄；叶片中游离Pro含量增加，MDA含量和SOD活性均呈先升后降趋势，且均表现为金叶过路黄的增幅大于花叶蔓长春；金叶过路黄叶片中的POD活性几乎无变化，而花叶蔓长春中则呈先升后降趋势。综合各测试指标、外部形态观察以及田间生长表现认为：花叶蔓长春的耐盐性较金叶过路黄强，但均可在含盐量为4mg·F^-1以下的土壤中正常生长。
채용분재시험법대화협만장춘화금협과로황진행염협박처리，이료해량충식물적내염능력급내염성차이。대신소생장량화상대생장량、협편중유리포안산（Pro）화병이철（MDA）함량、과양화물매（POD）화초양화물기화매（SOD）활성등지표진행료측정분석。결과표명：수염농도승고，신소생장량축점하강，화협만장춘적평균상대생장량고우금협과로황；협편중유리Pro함량증가，MDA함량화SOD활성균정선승후강추세，차균표현위금협과로황적증폭대우화협만장춘；금협과로황협편중적POD활성궤호무변화，이화협만장춘중칙정선승후강추세。종합각측시지표、외부형태관찰이급전간생장표현인위：화협만장춘적내염성교금협과로황강，단균가재함염량위4mg·F^-1이하적토양중정상생장。
Finca major cv. Variegata and Lysimachia nummularia 'Aurea' grown in pots were studied to tmderstand their salt tolerance and differences when they were treated with NaC1 solutions. Indexes including shoot growth and relative growth increament, free proline and MDA content, POD and SOD activities in the leaves were analyzed in the experiment. The results show that with the increase of salinity, the shoot growth of the two tested plants kept decreasing gradually, the average relative shoot growth of V. major cv. Variegata was higher than that of L. nummularia 'Aurea', the proline content of both species increased, and the MDA content and SOD activities of both species increased at the beginning and decreased afterwards, but the increased range of L. 'Aurea' was wider than that of V. major cv. Variegata, POD activity of L. nummulari 'Aurea' remained almost unchanged in all of the treatments while that of V. major cv. Variegata had a trend to increase firstly and then to decrease. According to the indexes analyzed in the paper and the morphological properties observed in the field, V. major cv. Variegata had a higher salt tolerance ability than L. nummularia 'Aurea' and both species can grow regularly in the soil with salinity under 4 mg· g^-1.