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Virologica Sinica, 10 (2) : 155, 1995
Studies on the Mild Strain Cross-Protection of Papaya Ringspot Virus
Plant Virology Laboratory
South-China Agricultural Univesity
Guangzhou 510642
The present paper reported the effects of the ineeulum concentration of protecting strain and challenge strain,position of challange inoculation on the effectiveness of PRV mild strain cross-protection.Some technical aspocts in developing and implementing a cross protection program were suggestedbased on the exporimental results.Furthermore,it was found that the breakdown of cross-protection,asdefined by the appearance of symptoms caused by the severe strains,was related to the increase in virusconcentratio...
  Published online: 5 Jun 1995
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