CAJ | 학술논문

为小白菜抗逆栽培提供参考，采用盆栽试验比较了上海青小白菜在 NaCl 胁迫下喷施外源ALA 对其植株生长及光合效应的影响。结果表明：在100 mmol/L NaCl 胁迫下，喷施100 mg/L 外源 ALA的小白菜地上部和地下部干重分别比 NaCl 胁迫处理高4．00％和15．9％，初始荧光值下降11．5％，最大光化学效率、叶片潜在活性、光合速率、蒸腾速率、气孔导度和叶绿素（a＋ b）含量分别高6．6％、36．3％、21．7％、15．0％、19．3％和14．4％。外源 ALA 可缓解 NaCl 胁迫对小白菜光合效率的影响。
위소백채항역재배제공삼고，채용분재시험비교료상해청소백채재 NaCl 협박하분시외원ALA 대기식주생장급광합효응적영향。결과표명：재100 mmol/L NaCl 협박하，분시100 mg/L 외원 ALA적소백채지상부화지하부간중분별비 NaCl 협박처리고4．00％화15．9％，초시형광치하강11．5％，최대광화학효솔、협편잠재활성、광합속솔、증등속솔、기공도도화협록소（a＋ b）함량분별고6．6％、36．3％、21．7％、15．0％、19．3％화14．4％。외원 ALA 가완해 NaCl 협박대소백채광합효솔적영향。
In order to provide some references for pakchoi stress resistance cultivation,by using pot experiment,the effects of exogenous ALA on plant growth and photosynthesis of pakchoi were studied under 100 mmol/L NaCl stress.The results showed that the group with 100 mmol/L NaCl+ 100 mg/L ALA compared with the group with 100 mmol/L NaCl,increased the aboveground dry weight by 4.0%, the underground part dry weight by 15.9%,decreased the minimal fluorescence(Fo)by 11.5%,decreased the PSⅡmaximal photochemical efficiency(Fv/Fm)6.6%,the potential photochemical efficiency(Fv/Fo) 36.3%,the photosynthetic rate(Pn)21.7%,the transpiration rate(Tr)15.0%,the stomatal conductance (Gs)19.3%,the total chlorophyll 14.4%.Exogenous ALA treatment might remit the effects of NaCl stress on photosynthetic rate of pakchoi.