@article{oai:kpu.repo.nii.ac.jp:00004804, author = {広瀬, 忠彦 and Hirose, Tadahiko and 足立, 和義 and Adachi, Kazuyoshi and 高嶋, 四郎 and Takashima, Shiro}, journal = {京都府立大學學術報告. 農學, The scientific reports of Kyoto Prefectural University. Agriculture}, month = {Oct}, note = {ピーマンについて, 遺伝的雄性不ねん系統の作出など人為的突然変異誘起の手段としての放射線照射を効果的に行なうためにまずその感受性を調べた。種子照射の場合の生育限界線量はX線で30kr., ガンマー線で50kr.であり, (LD)_<50>はそれぞれ20∿25kr.および40∿50kr.である。苗に対するXさ照射では2kr.が限界線量と考えられ, また1kr.の照射で約15日後にほぼ完全な不ねんをひき起こす。目的とする突然変異の誘起には上記の範囲の線量での照射が効果的であると考えられる。, The study of radiosensitivity is important as the first step in plant breeding by radiation. The present study was carried out to investigate the radiosensitivity of dry pepper (Capsicum annuum L.) seeds and young pepper plants exposed to X- or gamma-rays. Philips deep therapy unit was used for X-irradiation and radiocobalt was used as the source of the gamma-ray. The irradiated seeds were sown immediately. Germination of the irradiated seeds was inhibited by high dosage. All of the seedlings, furthermore, were killed by35kr. of X-ray or 60kr. of gamma-ray. (LD)_<50> in pepper seed is considered to be 20-25kr. of X-ray and 40-50kr. of gamma-ray. For the young plants, 1-2kr. X-irradiation was the most effective, and almost all pollen grains were made abortive by 1kr. irradiation while growth promoting effects were observed at 0.25-0.5kr. irradiation.}, pages = {13--16}, title = {ピーマン種苗の放射線感受性(農学部門)}, volume = {19}, year = {1967}, yomi = {ヒロセ, タダヒコ and アダチ, カズヨシ and タカシマ, シロウ} }