Abstract：Taking 85 tomato plug seedling samples collected from intensive nursery farms in Beijing，
Hebei Province and Ningxia Autonomous Region as materials，this paper tested their physiological indexes
including plant height，stem diameter，dry/fresh quality and seedling index；and carried out PCR detection
on pathogens of tomato early blight and TYLCV．The results showed that the average seedling index of these
65 samples collected in Beijing area was 0.156，the detection rate of early blight was 67.69%，and detection
rate of TYLCV was 7.69%．The average seedling index of 15 samples collected in Hebei Province was 0.165，
and detection rate of early blight was 86.67%，TYLCV detection rate was 0．The average seedling index of 5
samples collected in Ningxia Autonomous Region was 0.069，and the detection rate of early blight and TYLCV
was 0．
