Application of SUMO Protein in Fusion Expression System Temporal and Spatial Expression of Bt Toxic Protein in Transgenic Btcry3A Hybrid Poplar 741 Effect of Different LED Light Qualities on Bt Toxic Protein Content and Chlorophyll Fluorescence of Transgenic Poplar Leaves The seasonal dynamics of resistance of transgenic Bt cotton to cotton bollworm in cotton planting region of southern Xinjiang Studies on Efficient Transforming System of Oilseed Rape Insect Resistance Selectivity of Transgenic Hybrid Poplar 741