Abstract: In order to clear the effect of different susceptible parents to inheritance of TuMV resistance for Chi- nese cabbage, two resistant （antigenic material 8407 and highly resistant material 73 ） and two susceptible （ Guan291 and 06-247） materials were used to make four F1 hybrids and their F2 populations. Plants were inocula- ted with TuMV-C4 strain,and TuMV resistance were characterized using the method of visual observation,according to the disease classification standard. The results showed：In the hybrid combination of 8407 × Guan291,TuMV re- sistance was controlled by a single dominant gene. In the combination of 8407 × 06-247,TuMV resistance was con- trolled by one recessive gene. In the combination of 73 × 06-247,TuMV resistance was also controlled by one reces- sive gene. But in the combination of 73 × Guan291, the TuMV resistance was controlled by two recessive genes. Therefore,Inheritance of TuMV resistance for Chinese cabbage was very complex. The F2 populations have different resistance to TuMV,which derived from the F1 plants between the same resistant material and two different suscepti- ble parents. In the breeding of TuMV resistant Chinese cabbage,specific analysis and research should be done to the materials used, so that it can direct the breeding well.

Key words: Chinese cabbage, Turnip mosaic virus, Inheritance of resistance

CLC Number: 

• S435