Transformation of Arabidopsis Flowering Gene FT to from Cut Chrysanthemum‘Jinba’by Agrobacterium Mediate System Optimization of Precociously Flowering of Poplar Induced by FT Gene Controlled by a Heat Shock Promoter Cloning of 6-SFT Gene from Leymus racemosus and Analysis of Tolerance to Drought and Cold Stresses in Transgenic Tobacco Genetic Transformation of Apple MdFT Gene into Tomato Factors Influencing the Heat Shock Flowering of HSP ∷ FT Transgenic Poplar Genetic Transformation of Apple MdFT Gene into Tomato Transformation of Arabidopsis Flowering Gene FT to from Cut Chrysanthemum‘Jinba’by Agrobacterium Mediate Influence of Over-expression of the BoFLC3 and AtFT Genes on Floweringtime and Cold Tolerance in Brassica juncea