수출용 오리엔탈 백합 품종 잎마름병 방제를 위한 감마선 및 화학 대체제융복합 처리 효과

In order to seek more eco-friend, economic and safer quarantine method than current methyl bromidefumigation, the convergent treatment with 200 Gy of gamma irradiation and several chemicals such asnano-siver particles (NSS), sodium dichloroisocyanurate (NaDCC) was tried on the cuttings of lily in the packingof catonnage box for export. With 6 independent experiments of gamma irradiation on the three lily cultivars,cvs. Siberia, Le reve and Sorbonne, incidence and severity of lily leaf blight was investigated on leaves andpetals at 8-d after infection. 200 Gy of gamma irradiation decreased at 13-25% of severity on the leaf of Sorbonne,but it increased at 2-5% of severity on the leaf of Siberia and Le reve. Chemical substitutes such as NSS andNaDCC were not effective to control of lily blight on cuttings. By 200 Gy of gamma irradiation treatment,chlorophyll contents were statistically significantly decreased at 12-d after irradiation and the longevities vaselifeof fully open flower of Siberia and Sorbonne were increased at 0.4 to 1.2 days. In addition, the relative freshweights of the gamma irradiated cuttings were severely dried compared to the non-irradiated control. On theother hands, the symptoms of phyto-toxicity of high dose gamma irradiation at 1 or 2 kGy on cv. Siberia wereto be blight at the tip of bloom, bent necks of flower, and delayed the process of flowering. KCI Citation Count: 2