|
|
|
| Effects of β-cyclocitral on Growth of Cucumber Seedlings Under Salt Stress |
| WANG Xueyun，LI Yuting，NIE Yixuan，TIAN Yongqiang，MA Si* |
| College of Horticulture，China Agricultural University，Beijing Key Laboratory of Growth and Development Regulation for Protected Vegetable Crops，Beijing 100193，China |
|
|
|
|
Abstract In order to clarify the application effect of β-cyclocitral in facility vegetables，the effects of β-cyclocitral（75 μmol · L-1）on the growth of cucumber seedlings under salt stress（150 mmol · L-1 NaCl） were investigated by using ‘Jinchun No.4’ cultivar．The results showed that β-cyclocitral applied in root had little effect on the growth of cucumber seedlings compared with control；while under salt stress，β-cyclocitral treatment could significantly increase the fresh weight，plant height，stem diameter and chlorophyll content of cucumber seedlings，and significantly reduce the contents of MDA and Na+ in roots and leaves of cucumber seedlings，and the content of hydrogen peroxide in leaves decreased by 22.32% and the superoxide anion content in roots and leaves decreased by 21.84% and 28.58%，respectively．In summary，the application of β-cyclocitral can alleviate the damage of salt stress on cucumber seedlings by scavenging reactive oxygen species and maintaining photosynthetic pigment content，and improve the salt tolerance of cucumber．
|
|
Received: 05 July 2023
|
|
|
|
|
|
|
