• Title/Summary/Keyword: 계통육종

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Resistance Evaluation of Radish (Raphanus sativus L.) Inbred Lines against Turnip mosaic virus (순무모자이크바이러스에 대한 무 육종 계통 저항성 평가)

  • Yoon, Ju-Yeon;Choi, Gug-Seoun;Kim, Su;Choi, Seung-Kook
    • Research in Plant Disease
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    • v.23 no.1
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    • pp.60-64
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    • 2017

  • Leaves of twenties radish (Raphanus sativus L.) inbred lines were mechanically inoculated with Turnip mosaic virus (TuMV) strain HY to evaluate TuMV resistance of the radish inbred lines. The inoculated radish plants were incubated at $22^{\circ}C{\pm}3^{\circ}C$ and resistance assessment was examined using symptom development for 4 weeks. Based on the reactions of differential radish inbred lines, 16 radish lines were produced mild mosaic, mottling, mosaic and severe mosaic symptoms by TuMV infection. These results were confirmed by RT-PCR analysis of TuMV coat protein gene, suggesting that TuMV is responsible for the disease symptoms. Four resistant radish lines did not induce systemic mosaic symptoms on upper leaves and chlorosis in stem tissues for 4 weeks, showing they were symptomless by 8 weeks. Further examination of TuMV infection in the 4 radish lines showed no TuMV infection in all systemic leaves. These results suggest that the 4 radish lines are highly resistant to TuMV.

  • https://doi.org/10.5423/RPD.2017.23.1.60 인용 PDF KSCI

Studies on Purple Seed Stain (Cercospora kikuchii) of Native Soybean Collections (재래종대두의 자반병 감염에 관한 연구)

  • Kwon, S.H.;Ou, J.H.;Kim, J.R.;Song, H.S.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.22 no.1
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    • pp.11-15
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    • 1977

  • Natural infection of purple stain seemed to be higher in early maturing lines comparing to late maturing group. It was positively correlated with length of the period from flowering to maturity and significantly associated with weather conditions during the maturing period.

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Seed Protein Quality of Soybean Mutants (콩 돌연변이 계통의 단백질 특성)

  • Moo Hee, Yang;Joe W, Burton
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.39 no.3
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    • pp.278-284
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    • 1994

  • The sulfur amino acid composition in soybean (Glycine max L.) seeds may be an essential characteristic of new cultivars for some animal diets. Variation in seed storage protein among genotypes might make it possible to improve the quality of seed protein by genetically altering seed storage protein composition through plant breeding. This study was carried out to determine if mutant strains have potential for improving seed protein quality in soybean. Ten mutant strains had a distinct characteristic of seed storage protein subunits. Among the mutant strains, the sulfur amino acid compositions(methionine plus cystein) of Keburi(P.I.417016), Keburi(P.I.506817), and P.I.54608-1 were relatively higher than those of the others and were 1.9, 2.1, and 1.8%, repectively, which might be due to low levels of ${\alpha}$, ${\alpha}$', and ${\beta}$ subunits of 7S protein. Therefore, it is concluded that the mutant strains, Keburi(P.I.417016), Keburi(P.I.506817), and P.I.54608-1 appear to be potential materials for a breeding program for improving sulfur amino acid composition, and the others also seem to be possible breeding materials for other uses.

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Comparison of Lines from Anther and Maternally-derived Dihaploids, Single-seed Descent and Bulk Breeding Method in Flue-cured Tobacco(Nicotiana tabacum L.) II. Efficiency of Conventional vs. Haploid Breeding Methods in Tobacco. (연초(Nicotiana tabacum L.)에 있어서 반수체육종법, 1주1계통법, 집단육종법에 의한 육성계통의 비교 II. 관행육종법과 반수체 육종법의 효율 비교)

  • Chung Yun Hwa;Lee Seung Chul;Kim Dal Ung
    • Proceedings of the Korean Society of Crop Science Conference
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    • 1988.02a
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    • pp.96-97
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    • 1988

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