Intergeneric Somatic Hybrid Plants of Nicotiana tabacum L. and Lycium barbarum L. by Protoplast Electrofusion Selecting the Electrofusion Condition of Alfalfa Protoplast Unexpected Ploidy Variation of the Somatic Hybrid Plants Between Citrus sinensis and Clausena lansium Callus Formation from Somatic Hybridization of Wheat (Triticum aestivum L.) and Ryegrass (Lolium perenne L.) by Electrofusion Centrifugation Purification and Protoplasts Electrofusion of Reynoutria japonica Regeneration of Diploid Intergeneric Somatic Hybrid Plants Between Microcitrus a Electrofusion Intergeneric Somatic Hybridization Between Brassica napus L. and Sinapis alba L. Production of Citrus Intergeneric Tetraploid Somatic Hybrids Plant from Elec􀀁tricity-mediated Protoplast Fusion Production of Citrus Intergeneric Tetraploid Somatic Hybrids Plant from Elec􀀁tricity-mediated Protoplast Fusion Optimization of Electrofusion Parameters and Interspecific Somatic Hybrid Regeneration in Citrus ELECTROFUSION BETWEEN MESOPHYLL PROTOPLASTS OF Lycopersicon esculentum AND SHOOT TIP PROTOPLASTS OF LYCOPERSICON HIRSUTUM Intergeneric Somatic Hybrid Plants Between Citrus and Poncirus trifoliata and Evaluation of Their Root Rot Resistance