• 1 January 1979
    • journal article
    • research article
    • Vol. 11  (2) , 161-165
Abstract
Apple seedlings of different ages (1, 3 and 5 wk) were inoculated with 6900 P. penetrans/seedling in 10 cm diameter pots in a growth chamber. Rate of growth suppression and total growth suppression of seedlings by P. penetrans were inversely proportional to seedling age at time of nematode inoculation. Younger seedlings contained a higher number of nematodes per gram root.