벼의 callus 培養에서 再分化된 植物體의 主要 形質 變異

• 영문명: Variation of agronomic characters in regenerated plants from callus culture of rice
• 발행기관: 한국육종학회
• 저자명: Jae Keun Sohn(孫再根) Oh Hee Kwon(權五熙) Sam Taek Cheong(鄭三澤) In Koo Rhee(李麟九)
• 간행물 정보: 『한국육종학회지』Vol.23 No.3, 15~21쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1991.09.30

영문 초록

Somaclones regenerated from callus culture of a japonica rice cultivar, “Chucheongbyeo”, were evaluated for variation in nine agronomic and morphological characters ; heading date, grain fertility, culm length, panicle length, number of panicles per hill, number of grains per panicle, grain weight, amylose content and leaf color. The R₂ pedigree lines were derived by self-pollination of 196 plants(R₁) regenerated from primary callus. The calli were induced from mature seeds of an anther-derived plant. Only 24% of 196 R₂ lines were normal in all characters observed, 50% of the total lines were uniform within each line although the differences among lines were recognized, and 51 R₂ lines(26%) were segregated in one or more characters investigated. The proportion of R₂ lines carrying one or two mutated characters was 58.6% of total R₂ lines tested. The R₂ populations appeared to have shorter culm and panicle length, less effective tillers, and more grains per panicle as compared with mean values of original cultivar. However, the means of heading date, grain weight and amylose content were nearly the same as their respective checks.

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