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Varietal classification of spring-triticale cultivars by agronomic and feed component traits
Seung Gil Yun(尹承吉),Kazuo Ataku(安宅一夫),Chang Hwan Cho(曺章煥),Taiki Yoshihira(義平大樹) 한국육종학회 1996 한국육종학회지 Vol.28 No.4
This experiment was conducted to obtain information on various characteristics of triticale cultivars collected from overseas. Ten cultivars such as PRAG46/2, PHTSP Ⅰ/Ⅱ, GABO, S50RI, R70/2, BANJO, WAPITI, SUL-IN, TC-2 and Chuchuhomil were sown in the experimental field of Ansong National University in 1995, and their agronomic traits such as growth, yield, and feed value were examined. The triticale cultivars were classified by using principal component analysis on the basis of the agronomic characters examined. The triticale cultivars except Chunchuhomil were short stature. Leaves per plant in PRAG46/2 and GABO were numerous. Fresh and dry weight per plant were the highest in S50RI, GABO, and R70/2. PHTSP Ⅰ/Ⅱ showed the highest number of grains per plant and 1,000 grain weight, and therefore the highest grain yield. GABO, WAPITI, and SUL-IN showed the high content of starch, total sugar and crude protein. In the result of principal component analysis for fifteen characters, about 70% of total variation could be appreciated by the first two principal components, the first principal component was high loaded with plant height, fresh weight per plant, dry weight per plant, yield per plant and number of grains per plant, the second principal component with crude protein, potassium, calcium and magnesium content. Four varietal groups were classified by scatter diagram based on the first and second principal component scores. The second group of the four classified groups had three sub-groups. The first group, Chunchuhomil and PHTSP Ⅰ/Ⅱ, must be useful for breeding materials because those have better agronomic characters related to growth and yield than others.
보리 F₂集團에 있어서 穗/莖葉乾物重比의 分離樣相과 遺傳率
Seung Gil Yun(尹承吉),Chang Whan Cho(曺章煥) 한국육종학회 1995 한국육종학회지 Vol.27 No.1
Selection in early generation was considered as a method of indentifying superior lines as early as possible. The inheritance of ear/shoot dry weight ratio in barley was examined by segregation mode in F₂ populations derived from four cross combinations to facilitate the selection of high yielding lines. Barley cultivars “Olbori” and “Milyang 36” were higher in ear/ shoot dry weight ratio than the other cultivars. Two combinations of Olbori x N-ACC-400-172 and Olbori x Milyang 36, which showed transgressive segregating mode in F₂ population, had high heritability for ear/shoot dry weight ratio. This result suggested that high-yielding lines could be selected in these two cross combinations. The F₂ plant with high ear/shoot dry weight ratio tended to be high in yield due to increase in the number of grains per spike and 1,000-grain weight.
숙주의 발아과정 동안 폴리아민 생합성과 Diamine 산화효소에 대한 스트론티움 효과
김태완,권영업,윤승길,Kim, Tae-Wan,Kwon, Young-Up,Yun, Seung-Gil Korean Society of Soil Science and Fertilizer 2003 한국토양비료학회지 Vol.36 No.6
본 연구는 고등식물 세포 내 대사작용에 대한 스트론티움의 역할을 구명하고자 수행되었다. Strontium에 의한 diamine 산화효소의 활성화로 putrescine의 함량은 감소하였다. 배축에서의 diamine 산화효소의 활성은 $0.5-1.8\;mol\;putrescine\;oxidation\;mg^{-1}\;protein\;min^{-1}$이었다. 자엽에서의 putrescine 감소는 적어도 diamine 산화효소에 의한 putrescine의 산화의 결과였다. 더 나아가 strontium 1-10 mM 처리에 의해 spermidine과 spermine 의 축적이 관찰되었다. strontium이 없는 대조구에 비해 spermldine은 2-3배 증가하였다. 이러한 증가는 생체중을 기준으로 하였을 경우뿐만 아니라 RNA를 기준으로 하였을 경우에도 동일한 결과였다. 결론적으로 이러한 결과는 strontium이 diamine 산화 및 polyamine 축적과 같은 polyamine의 대사와 관련되어있음을 보여주었다. Objective of this experiment was to investigate the role of strontium in intracellular processes in mung bean (Vigna radiata L.). Diamine oxidase (DAO) induction by $Sr^{2+}$ appeared to a decrease in putrescine levels correspondently. DAO activities in the hypocotyls were in a range of 0.5 to $1.8unit{\cdot}mg^{-1}\;protein{\cdot}min^{-1}$. The decrease in Put levels in the cotyledons might be partly resulted from Put degradation by DAO. It was observed that the accumulation of spermidine and spermine by $Sr^{2+}$ was in the range of 1 mM to 10 mM. Spermidine levels were 2 to 3 fold higher than in the absence of strontium. The increase in polyamine levels was observed not only on a basis of g fresh weight but also a RNA basis. These results demonstrated that the inhibitory action of $Sr^{2+}$ may be closely related with polyamine metabolism as well as diamine oxidation and polyamine accumulation.
小麥의 品種別 Amylase 活力에 關한 硏究 : Triticum Aestirum L.
尹承吉 안성산업대학교 1991 論文集 Vol.23 No.-
本 試驗 α-amylase 活力의 檢定時期와 品種間差異를 究明하기 위하여 實施하였는데 그 結果를 要約하면 다음과 같다. 1. α-amylase의 變異는 成熟後 40日경까지 增加되어 最大가 되고 그 後에는 작아져 品種間 差異는 成熟後 40日경이 가장 크게 나타났다. 2. 全體 品種平均의 α-amylase含量은 成熟後 日數가 經過함에 따라 增加하는 傾向이며 糊熟期에 이미 α-amylase活力이 높은 品種도 있었다. 3. α-amylase含量에 있어서 測定時期別 相關은 成熟後 20日과 成熟後 40日間에는 正의 높은 相關이 있었고 穗發芽 對 α-amylase含量間에는 成熟後 40日에서 가장 높은 正의 相關이 있었다. 4. 穗發芽比率이 낮은 品種중에서 α-amylase含量이 매우 높은 品種도 檢定되었다. This experiment was carried out to determine the optimum tests of activity α-amylase to study the varietal differents this in wheat. 1. Variation for α-amylase was increased until 40days of after ripening showing the great deviation between varieties. 2. Activity of α-amylase tends to incrase accoding to process of ripening and some varieties showed the activity of α-amylase from dough stage. 3. There showed the positive correlation between 20days and 40days after ripening for activity of α-amylase. However highly correlation of spike sprout with activity of α-amylase appeared at the 40days after ripening. 4. Some varieties which showed considerably high activity of α-amylase even if these were very high in spike sprout were tested and selected.