放射線에 依한 水稻의 可視的 突然變異의 出現率에 關한 硏究

• 영문명: Studies on Frequency of Visible-Macro Mutations in X-irradiated Rice Seeds
• 발행기관: 한국육종학회
• 저자명: J.L. WON(元鐘樂) S.H. KWON(權臣漢)
• 간행물 정보: 『한국육종학회지』Vol.9 No.3, 29~33쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1977.12.30

영문 초록

Frequency of macro-visible mutations such as early heading, short culm, leaf and plant type etc. was compared with that of chlorophyll mutions in X-irradiated rice seeds with 25kR. Various morphological mutation types of different M₁ panicles and segregation ratio of mutant types in M₂ generation were investigated. Rate of macro-visible mutation was much higher than that of chlorphyll mutation and the majority of mutation type was early heading and short culmed types among the macro-visible mutations. Since the same types of morphological mutation were found in different panicles of single M₁ plant, one panicle selection per M₁ plant will be enough for raising M₂ progenies in mutation breeding. Consequently, estimation of number of initial cells in the seed embryo by means of M₂ segregation ratio will be reconsidered.

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