CAJ | 학술논문

用纸床培养，通过测定萌发率、胚根长、胚芽长、鲜重等生物量指标及各项生理生化指标的方法探究了不同浓度NaCl(0 mmol/L、25 mmol/L、50 mmol/L、100 mmol/L、150 mmol/L、200 mmol/L)胁迫对特大叶荆芥幼苗种子萌发及幼苗生长的影响。结果表明：NaCl胁迫对荆芥种子萌发率无明显影响，而荆芥根长、芽长、鲜重、子叶展开数和种皮脱落数等均随浓度的增加呈下降趋势，当胁迫浓度≥100 mmol/L时抑制极为显著。 SOD和POD活性在25 mmol/L的NaCl胁迫浓度下较对照组升高，而在其后的胁迫浓度下均较对照组低，阴离子氧生成量表现出相应的先下降后上升的趋势。
용지상배양，통과측정맹발솔、배근장、배아장、선중등생물량지표급각항생리생화지표적방법탐구료불동농도NaCl(0 mmol/L、25 mmol/L、50 mmol/L、100 mmol/L、150 mmol/L、200 mmol/L)협박대특대협형개유묘충자맹발급유묘생장적영향。결과표명：NaCl협박대형개충자맹발솔무명현영향，이형개근장、아장、선중、자협전개수화충피탈락수등균수농도적증가정하강추세，당협박농도≥100 mmol/L시억제겁위현저。 SOD화POD활성재25 mmol/L적NaCl협박농도하교대조조승고，이재기후적협박농도하균교대조조저，음리자양생성량표현출상응적선하강후상승적추세。
By the method of filter paper cultivation, some biomass indexes including germination rate, radical length, germ length, fresh weight and some physiological indexes were studied to explore the influence of NaCl(0 mmol/L, and 25 mmol/L, and 50 mmol/L, and 100 mmol/L, and 150 mmol/L, and 200 mmol/L) stress on seed germination and seedling growth of Nepeta catar-ia L. . The results showed that effects on seed germination rate was not significant under NaCl(0 mmol/L, and 25 mmol/L, and 50 mmol/L, and 100 mmol/L, and 150 mmol/L, and 200 mmol/L) stress,while these indexes including root length, bud length, fresh weight, the number of cotyledons opened and seed coat drop decreased with the increasing of NaCl concentration, when the concentrations is higher than 100 mmol/L the inhibition was significant. When concentration of NaCl was 25 mmol/L, SOD and POD activity was higher than the control group, while under subsequent stress, concentration activity was lower than the control group, and the anionic oxygen generation showed a corresponding upward trend after the first drop.