TRANSFER OF THE SPERM BY IRRADIATED Helicoverpa armigera (L.NOCTUIDAE) EFFECT OF GAMMA IRRADIATION ON Agrobacterium-MEDIATED GENETIC TRANSFORMATION OF JAPANESE LAWNGRASS(Zoysia japonica Steud.) IMPROVEMENT OF RICE STARCH BY GAMMA IRRADIATION EFFECTS OF GAMMA IRRADIATION ON THE SPERM TRANSMISSION AND OVIPOSITION RESPONSE IN Helicoverpa armigera (L.NOCTUIDAE) DEVELOPMENT OF A LOW GELATINIZATION TEMPERATURE MUTANT(Mgt-1) OF RICE AND ITS GRAIN QUALITY CHARACTERS INDUCTION OF DOMINANT MALE STERILITY BY USING 60 Co γ\| RAYS IRRADIATION IN RICE Oryza sativa L. EFFECT OF ELECTRON BEAM IMPLANTATION ON in vitro CULTURE OF YOUNG RICE PANICLE CYTOGENETIC STUDY ON THE IRRADIATION-INDUCED LOW SEEDINESS OF Citrus tangerina Hort.