감마선조사가옥잠화와털머위종자의발아, 생육및변이유발에미치는영향 (Effect of Gamma Ray Irradiation on Seed Germination, Growth and Variant Induction in Hosta plantaginea and Farfugium japonicum)

서지정보

· 발행기관 : 한국화훼학회
· 수록지 정보 : 화훼연구 / 16권 / 2호 / 128 ~ 133페이지
· 저자명 : 허북구, 곽수년, 박재옥, 강시용, 조혜성, 박문영, 조윤섭

초록

옥잠화(Hosta plantaginea)와털머위(Farfugium japonicum) 종자에방사선을조사하여고품질의변이종을선발할목적으로실험을수행하였다. 두식물의종자에γ-ray를 10-30Gy로조사한후파종하여종자발아, 생장, 생존율및변이체유발에미치는영향을조사하였다. 옥잠화와털머위모두 20Gy 이상의선량에서는선량이증가될수록발아가지연되고발아율도저하되었다. 반치사선량(半致死線量)은옥잠화 30Gy, 털머위는 25Gy 수준이었다. 생장은옥잠화, 털머위모두γ-ray 10Gy 이상의선량에서왜화경향이뚜렷하였다. 옥잠화는 M1세대에서 166개의변이체가나타났으며, M2 세대에서 12개의유망변이체를선발하였다. 털머위는 M1세대에서 57개의변이체가나타났으며, M2세대에서 9개의유망변이체를선발하였다.

영어초록

This study was conducted to select new variants with different characteristics in plant height, leaf color, and petal color of plantain lily (Hosta plantaginea) and Japanese farfugium (Farfugium japoni-cum). After 10-30Gy γ-ray irradiation to seeds of both species, seed germination, variant induction, growth of variants, and survival ratios were estimated. Days required for seed germination were lengthened and % seed germination decreased as the dosage of γ-ray increased over 20Gy. Lethal dose (LD50) for plantain lily and Japanese farfugium were 30Gy and 25Gy, respectively. Plantain lily and Japanese farfugium treated by more than 20Gy γ-ray showed dwarf characteristics in growth, and variations in leaf and petal colors. Total 166 variants in plantain lily were induced by γ-ray irradiation in a M1 generation, among which 12 promis-ing variants were selected in a M2 generation. Total 57 variants of Japanese farfugium were induced by γ-ray irradiation in a M1 generation, among which nine promising variants were selected in a M2 generation.

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