Resistance evaluation of oilseed rape cultivars and germplasms to Turnip mosaic virus

摘要

Resistance of twenty-seven cultivars and germplasms of oilseed rape (Brassica napus L.) to Turnip mosaic virus (TuMV)were evaluated by artificial inoculation. 13 B. napus cultivars, some of which are currently applied in oilseed rape production, were all susceptible to TuMV. However, their disease indexes were lower than control cultivar Zhongyou 821. Among 14 germplasms of oilseed rape tested, 3 showed high or medium resistance to TuMV. The results indicated that the tested cultivars of oilseed rape could not resist to TuMV under high TuMV disease pressure.