SENSIBILITY OF DIFFERENT WHEAT VARIETIES(STRAINS) TO Ar~+ IMPLANTATION Irradiation Sensitivity of 6 Cultivars in Euphorbia pulcherrima Study on Seeding Survival and Medial Lethal Dose of Three Halophtes Irradiated by Electron Beam IRRADIATION SENSIBILITY OF DIFFERENT PROVENANCES OF Jatropha curcas L.Seeds Search for proper dose of 60Co-γ ray in Actinidia chinensis radiation breeding