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Italian ryegrass의 秋季刈取가 牧草의再生, 炭水化物 蓄積 및 乾物收量에 미치는 影響
安桂洙 順天大學校 1983 論文集 Vol.2 No.1
本 試驗은 秋播 이탈리안라이그라스의 秋季刈取時期가 牧草의 再生, 炭水化物 蓄積 및 乾物收量에 미치는 영향을 究明하기 爲하여 圃場實驗을 遂行하였으며 結果를 要約하면 다음과 같다. 1.乾物收量은 刈取時期가 빠른 區일수록 높았고(P<0.05), 刈取時期가 제일 늦은 區는 無刈取區보다도 收量이 낮았다. 2. 乾物中 全水溶性炭水化物(TSC)의 含量은 一番刈取直後에 약간 떨어졌다가 再生長에 따라 점점 높아졌으며 二番刈取期에 가까울수록 다시 떨어졌다. 氣溫이 零下로 下降하기 1週日 前의 TSC含量水準은 그루터기, 줄기, 잎 別로 모두 共히 刈取時期가 빠른 區일수록 高水準이었으며 (P<0.01), 二番草의 乾物收量과의 사이에 相關이 成立되었다.(P<0.05) 3. 收量生長速度(CGR)는 平均氣溫이 8℃에서 下降할수록 떨어졌으며, 上昇할수록 높았다. 相對葉面積生長率(RLGR)과 純同化率(NAR)은 各區 共히 再生30日間이 가장 높았으며 再生後期에는 低下되었다. 葉面積指數(LAI)의 增大는 各區 共히 刈取後 50日까지는 빨랐으며 그 後에는 완만하였고 最大値의 節圍는 3.4∼5.8이었다. 또한 刈取後 70日까지의 LAI가 큰 區일수록 二番草의 乾物收量이 높았다. 4. 生長이 抑制되는 低溫期의 TSC, LAI, CGR, NAR 및 LWR와 二番草乾物收量과의 사이에 相關이 認定되었으며, 그 貢獻度는 LWR>LAI>TSC>NAR>CGR의 順이었다. This experiment was carried out to study the effect of the regrowth, the accumulated carbohydrate and dry matter yielding on the cutting time at the autumn in fall sowing Italian ryegrass. The results obtained were summarized as follows; 1. In dry matter yield, the plot of eariler cutting was shown the highest yielding(P<0.05), and that of the last cutting was shown the lower yielding of dry matter than that of the nonecutting plot. 2. TSC(Total water Soluble Carbohydrate) content in the dry matter slightly decreased directly after the first cutting and made gradual increase according to the regrowth of this crops and then decreased again to be coming on the second cutting time. In the TSC content levels at one week before falling to sub-zero temperature were all the high level in stubble, stem and leaf to the plot of eariler cutting(P<0.01), and there was significant correlation between the TSC content level and the dry matter yield of the second harvested grass(P<0.05). 3. CGR(Crop Growth Rate) was getting decreasing and increasing as the average temperature was falling and rising from 8℃. RLGR(Relative Leaf area Growth Rate) and NAR(Net Assimilation Rate) were both the highest during 30 days after regrowing, and lowered after regrowing in all the plots. LAI(Leaf Area Index) was shown a rapid increase during 50 days after cutting and then a slow increase in all the plots, and it's range of maximum value was 3.4-5.8. And also it was observed that dry matter yielding was high in the plots having a high LAI to 70 days after cutting. 4. It was recognized that there were significant correlation between TSC, LAI, CGR, NAR, LWR(Leaf weight Ratio) and dry matter yielding of the second harvested grass in the low temperature stage of making growth inhibition, and its degree of contribution was in order of LWR>LAI>TSC>NAR>CGR.
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사초용 유채 생산성과 사료가치에 관한 연구 6 : 파종기별 예취시기가 수량 및 영양가치에 미치는 영향
安桂洙,權炳喜,李正日 한국작물학회 1989 Korean journal of crop science Vol.34 No.4
본 시험은 남부지방에 적합한 사초용유채의 파종기별 예취시기가 수량 및 영양가치에 미치는 영향을 구명하기 위하여 Velox를 공시하여 실험하였던바 그 결과를 요약하면 다음과 같다. 1. 경태를 제외한 초장, 분지수, 주경엽수의 형질들은 파종기와 예취시기가 늦을수록 우수하였다. 2. 생초수량은 9월 하순에 파종하여 개화기인 4월 하순에 예취한 구가 가장 높았으며, 건물수량은 파종기와 예취시기가 늦을수록 높아서 9월 하순에 파종하여 만개기인 5월 초순에 예취한 구가 가장 높았다. 3, 조단백질함량은 파종기가 늦을수록 높았고, 예취시기는 늦을수록 급격히 저하되었으며, 9월 하순에 파종하여 추태기인 4월 초순에 예취한 구가 가장 높았었다. 4. NDF, ADF, hemicellilose, cellulose 및 lignin 등의 조섬유함량은 파종기가 늦을수록 저하되었고, 예취시기가 늦을수록 높았었다. 5. IVDMD은 조섬유와 같은 경향이었고, 가소화건물수량은 9월 하순에 파종하여 개화기인 4월 하순에 예취한 구가 가장 높았었다. In order to find out the optimum harvest (clipping) date combined with sowing date on yield and nutrient Quality of forage rape which is suitable at the southern part of Korea, Velox, introduced variety was grown from Sep. 1987 to May 1988 at Sunchon National University, and yield and nutrient Quality of plant were observed. As harvest date and sowing date were delayed, the plant length was longest, number of branch and leaves per main stem were increased in the time of full bloom clipping and Sep. 24 sowing but stem diameter was thickest in the early sowing. Fresh yield was heaviest in the time of flowering clipping and Sep. 24 sowing but the most dry matter yield was heaviest in the time of full bloom clipping and Sep. 24 sowing. Content of crude protein was highest and that of crude fiber such as NDF, ADF, hemicellulose, cellulose and lignin were lowest in the late time of clipping and sowing. Further more IVDMD was high and dry matter yield and digestible dry matter yield were highest in the time of flowering clipping and Sep. 24 sowing. Judging from the results reported above, at optimum harvest (clipping) date combined with sowing date for yield and nutrient Quality of forage rape seemed to be the time of flowering clipping and Sep. 24 sowing.
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油菜 多肥 密植 直播栽培가 生育과 飼草 및 種實 收量에 미치는 影響
安桂洙,權炳善,林俊澤 順天大學校 農業科學硏究所 1993 農業科學硏究 Vol.7 No.-
This study was conducted to examine the effect of seeding dates, seeding rates and fertilizer levels on the growth, dry matter yield and grain yield of rapeseed. Dry matter yield, grain yield and yield components such as ear length, number of branches per ㎡ and number of pods per ear were highest at the sowing date of Oct. 10 on plots with 50㎝ row spacing and 20㎝ drilling in fertilizer level of for N-P_2O-K_2O=20-16-16㎏/10a.
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사초용 유채 생산성과 사료가치에 관한 연구 VI. 파종기별 예취시기가 수량 및 영양가치에 미치는 영향
안계수,권병선,이정일,Ahn, Gae-Soo,Kwon, Byung-Sun,Lee, Jung-Il 한국작물학회 1989 한국작물학회지 Vol.34 No.4
In order to find out the optimum harvest (clipping) date combined with sowing date on yield and nutrient Quality of forage rape which is suitable at the southern part of Korea, Velox, introduced variety was grown from Sep. 1987 to May 1988 at Sunchon National University, and yield and nutrient Quality of plant were observed. As harvest date and sowing date were delayed, the plant length was longest, number of branch and leaves per main stem were increased in the time of full bloom clipping and Sep. 24 sowing but stem diameter was thickest in the early sowing. Fresh yield was heaviest in the time of flowering clipping and Sep. 24 sowing but the most dry matter yield was heaviest in the time of full bloom clipping and Sep. 24 sowing. Content of crude protein was highest and that of crude fiber such as NDF, ADF, hemicellulose, cellulose and lignin were lowest in the late time of clipping and sowing. Further more IVDMD was high and dry matter yield and digestible dry matter yield were highest in the time of flowering clipping and Sep. 24 sowing. Judging from the results reported above, at optimum harvest (clipping) date combined with sowing date for yield and nutrient Quality of forage rape seemed to be the time of flowering clipping and Sep. 24 sowing.
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安桂洙,權炳善,盧承杓,五斗一郎 순천대학교 기초과학연구소 1990 基礎科學硏究誌 Vol.1 No.-
In order to obtain basic information for breeding varieties of forage rape which is suitable at the southern part of Korea, seventeen introduced varieties were grown from Sep. 1986 May 1987 at mokpo Branch Station. Crop Experiment Station, and yield components and nutrient quality of plants were observed. The results obtained are summarized as follows: 1. Forage rape cv. Velox showed higher dry matter yield than any other variety in the experiment. It showed relatively high content of crude protein and in vitro dry matter digestibility(IVDMD) and low content of NDF. ADF, cellulose and lignin. Therefore, it was concluded that Velox was the most suitable variety with high yield and high nutrient quality at the southern part of Korea. 2. The heritabilities of all the observed characters but hemicellulose were estimated to be large. 3. Total dry matter yield showed highly significant positive correlations with plant length, stem diameter, number of main stem leaves, fresh yield, stem dry(DDMY). These characters mentioned above showed negative correlations with content of NDF, ADF, cellulose and lignin. 4. According to the result of path coefficient analysis, characters highly correlated with total dry matter yield showed large direct effects on total dry matter yield.
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경남지역 일부 도시와 어촌 중학생의 영양소 섭취 및 식습관 비교
안계수,신동순 대한지역사회영양학회 2001 대한지역사회영양학회지 Vol.6 No.3
This study was performed to compare the anthropometric and the food and nutrient intake of the adolescents between urban areas and islands in south Kyungnam and to identify their nutritional problems. A questionnaire survey was distributed among 383 middle school students for the food and nutrient consumption and other nutritional attitudes including socioecomonic status. The height and weight of the students were measured as well. Socioeconomic status, such as income, educational level, and jobs of the urban students parents was better than that of the island students. There was no significant difference in height between the students of both areas, but the body weight of the urban male students was far heavier than that of the other group. It is very interesting to note that the energy intake of the urban male students was much lower than that of the island male students. The students of the two areas consumed more protein, Vit B$_1$, Vit B$_2$, niacin and Vit C than the recommended daily allowances(RDA) but the intake of Ca, Fe, Vit A was less. As to the sources of animal fat, the urban males consumed much more. Regarding the taste preference, the study shows that urban male students are more likely to choose sweet, salty and soft tastes than island male students. In the case of female students, although island students prefer a rather hot taste, urban students are more likely to prefer sweet and soft tastes. The favorite foods of urban students are meat products, fastfoods, chocolate, cheese and milkshakes, while foods like cooked rice with assorted vegetable are the favorite of the island students. In general, the preference degree for meat products and fruits rates higher than for vegetables. Conclusively the urban students had a tendency of being obese and the intake of all nutrients by the urban adolescents was much lower than that of the islanders. In this study, the cause can be found in significant differences in consuming animal fat, of taste preference and of choosing favorite food. Accordingly a nutritional intervention or educational program is required to adjust the imbalanced intake of some nutrients for the adolescents in this province.
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