Ultrastructural alterations in foliar cells were studied in leaves of resistant maize varietyLuyu16 and susceptible maize inbred line Luyuan92 infected by maize
The DNA vaccine pCIHA5 encoding hemagglutinin can protect SPF chicken against lethal H5N1 avian influenza virus challenge. The more characters about its protect
Buprofezin and imidacloprid are selective insecticides against Homoptera insects. This paper in-vestigated stimulating effect of the two insecticides on the num