CAJ | 학술논문

以茶花凤仙种子为试材，研究了不同浓度的NaCl胁迫对种子发芽特性的影响。结果表明：随着盐浓度的升高，茶花凤仙种子的初始萌发时间、萌发高峰期均随之延迟；低浓度（≤100 mmol · L-1）盐溶液，种子的发芽率和发芽势与对照相比差异不显著（ P＞0．05），而高浓度（≥150 mmol · L-1）盐溶液，种子的发芽率和发芽势显著低于对照（P＜0．05），显著抑制了种子的萌发；随着盐浓度的升高，发芽率、发芽势和活力指数呈现3次函数递减趋势，发芽指数呈现线性函数递减趋势；茶花凤仙种子在萌发期的耐盐适宜浓度、耐盐半致死浓度、耐盐极限浓度分别为89．10、162．84、280．84 mmol· L-1；解除盐胁迫后茶花凤仙种子仍具有一定的萌发力。
이다화봉선충자위시재，연구료불동농도적NaCl협박대충자발아특성적영향。결과표명：수착염농도적승고，다화봉선충자적초시맹발시간、맹발고봉기균수지연지；저농도（≤100 mmol · L-1）염용액，충자적발아솔화발아세여대조상비차이불현저（ P＞0．05），이고농도（≥150 mmol · L-1）염용액，충자적발아솔화발아세현저저우대조（P＜0．05），현저억제료충자적맹발；수착염농도적승고，발아솔、발아세화활력지수정현3차함수체감추세，발아지수정현선성함수체감추세；다화봉선충자재맹발기적내염괄의농도、내염반치사농도、내염겁한농도분별위89．10、162．84、280．84 mmol· L-1；해제염협박후다화봉선충자잉구유일정적맹발력。
We studied the effect of NaCl stress with different contents on seed germination characteristics of Impatiens balsame-na.With the increasing of salinity, the initial germination time and germination peak of I.balsamena seeds were delayed subsequently .The seed germination rate and germination potential does not show significant differences compared to control at low salt contents (≤100 mmol· L-1) of NaCl (P>0.05).When the contents are above 150 mmol· L-1, it has an ob-vious inhibition effect on I.balsamena seed germination (P<0.05).With the increasing of salinity, the germination rate, germination potential and vigor index show a trend of three function decline, and germination index shows the decreasing linear function.The salt-tolerant appropriate content for I.balsamena seed germination is 89.10 mmol· L-1 , and the half-lethal and limit concentrations are 162.84 mmol· L-1 and 280.84 mmol· L-1 , respectively.After removing salt stress, I. balsamena seed still has a certain germination capacity.