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油菜 脂肪酸組成 改良育種에 關한 硏究 XIX. 高ㆍ低에루진酸含有 油菜品種의 隔離程度에 따른 脂肪酸 組成變化
Jung Il Lee(李正日),Byung Sun Kwon(權炳善),Sang Gon Kim(金祥坤),Jin Ki Bang(方鎭淇),Seung Pyo Rho(盧承杓) 한국육종학회 1985 한국육종학회지 Vol.17 No.1
The objectives of this study were to investigate variations of erucic acid content due to isolated distance of zero erucic acid varieties from high erucic acid variety and to determine the rates open-pollinated and crossed between zero and high erucic acid varieties when planted on the same area in producing rapeseed. Fourteen varieties with zero erucic acid and one high erucic acid variety were used in the experiment. Selfing was the most effective for maintaining zero erucic acid varieties. When planted 10m, 100m, 500m and 1,000m apart from high erucic acid variety, seed of zero erucic acid varieties had 4.8%, 3.9%, 3.1% and 0.4% in average of erucic acid content, respectively. The range of the 14 varieties was from 1.6% to 10.2% according to the varieties. Thus recommendable distance isolated from high erucic acid variety was 1km for economic seed production of rape seed varieties with zero erucic acid variety. However, Youngsanyuchae, which is zero erucic acid variety, had 24.2% erucic acid when planted in isolated island of Jeju due to crossing with volunteers which were high erucic acid varieties cultivated before. It is recommended that zero erucic acid varieties should be planted over 1km isolated field just after completely removing the volunteenrs plants of high erucic acid for pure seed production of zero erucic acid varieties.
油菜粕 飼料化를 위한 有害成分(glucosinolate) 改良育種에 關한 硏究 第2報. 油料用 brassica屬 作物의 登熟中 有害成分 含量變異
Jin Ki Bang(方鎭淇),Jung Il Lee(李正日),Kyung Soo Min(閔庚洙),Sang Kon Kim(金祥坤),Seung Pyo Rho(盧承杓) 한국육종학회 1986 한국육종학회지 Vol.18 No.4
The major aim of the investigation was to study the variation of glucosinolates content among the Brassica species such as rape, turnip and mustard, during their grain filling Of the three Brassica species, rapeseed meals had the lowest total glucosinolate content. Volatile isothiocyanates in seed meals of three Brassica species were calculated as 3-butenylisothiocyanate and 4-pentenylisothiocyanate. The content of isothiocyanate increased progressively from 30 to 50 days after flowering in all species. 5-vinyl-2-oxazolidinethione content of two Brassica species such as rape and turnip, increased rapidly from 35 days after flowering, after which there was a little change during the remainder of the grain filling period. On the other hand, 5-vinyl-2-oxazolidinethione was not found in the seed meals of mustard. In rape two interest cultivars, Yeongsanyuchae and Bronowski were found which revealed a very low isothiocyanates and 5-vinyl-2-oxazolidinethione contents.
油菜粕 飼料化를 위한 有害成分(glucosinolate) 改良育種에 관한 硏究 Ⅲ. 3-butenyl 및 4-pentenylisothiocyanate 含量의 遺傳
Jin Ki Bang(方鎭淇),Jung Il Lee(李正日),Kyung Soo Min(閔庚洙),Seung Pyo Rho(盧承杓),Sang Kon Kim(金祥坤) 한국육종학회 1987 한국육종학회지 Vol.19 No.2
To obtain the basic information for improving the quality of rapeseed meals, the inheritance of 3-butenly-isothiocyanate and 4-pentenylisothiocyanate content was estimated in the study of reciprocal crosses among the low glucosinolate Korean variety Youngsan and 3 other high glucosinolate varieties. The segregation ratio of 3-butenylisothiocyanate content was fitted to the ratio of 63:1, and the low 3-butenylisothiocyanate content of seed meal was considered to be controlled by three pairs of recessive genes. The low 4-pentenylisothiocyanate content of seed meal would be controlled by four pairs of recessive genes. The inheritance of 3-butenyl and 4-pentenylisothiocyanate content were influenced by the cytoplasm. The cytoplasmic influence was also detected in the inheritance of 3 butenyl and 4-pentenylisothiocyanate content.