Construction of Plant Expression Vector Harbouring Bivalent Genes Composed of Synthetic VHb Gene and GFMcryIA Gene Influence of Fruits of 4 Plum Varieties on the Enzymic Activity of Hoplocompa fulviconis A STUDY ON THE VARIATION OF SOME CHEMICAL SUBSTANCES IN THE BODY OF LARCH INDUCED BY THE DAMAGE FROM THE LARCH CASE-BEARER GENETICS OF SECONDARY METABOLITES AND PEST RESISTANCE OF PLANT