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.

飼料用油菜 品種들의 營養價 및 可消化乾物收量에 대한 遺傳分析

Gae Soo Ahn(安桂洙),Byung Sun Kwon(權炳善),Sang Gon Kim(金祥坤) 한국육종학회 1990 한국육종학회지 Vol.22 No.1

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 to May 1987 at Mokpo Experiment Station, Crop Experiment Station, and yield components and nutrient quality of plants were observed. Heritabilities of CP, NDF, ADF, cellulose, lignin, IVDMD, DDMY were higher, but that of hemicellulose were relatively lower. Total dry matter yield and yield components showed highly significant positive correlations with IVDMD(in vitro dry matter digestibility) and DDMY(digestible dry matter yield). These characters mentioned above showed negative correlations with content of NDF, ADF, cellulose and lignin.

飼料用油菜 品種들의 主要特性 및 相關

Gae Soo Ahn(安桂洙),Byung Sun Kwon(權炳善),Seung Pyo Rho(盧承杓) 한국육종학회 1990 한국육종학회지 Vol.22 No.1

This study was carried out for estimating genetic parameters, such as heritabilities, the phenotypic and genotypic correlations of major agronomic characters with 17 cultivars in forage rape. Heritabilities of plant length, number of main stem leaves, fresh yield, total dry matter yield, stem dry matter yield, and leaf dry matter yield were higher, but that of stem diameter were relatively lower. The genotypic correlation coefficients between total dry matter yield and plant length, stem diameter, number of main stem leaves, fresh yield, stem dry matter yield and leaf dry matter yield showed highly positive correlation, those characters gave high direct effect as same level in path coefficient analysis.

솔잎분말이 육성돈의 성장에 미치는 효과

이은봉,안계수,오동환 ( Eun Bong Lee,Gae Soo Ahn,Dong Hwon Oh ) 한국축산학회 1982 한국축산학회지 Vol.24 No.2

This experiment was carried out with 30 growing pigs during a period of 14 weeks to examine the effects of additional levels of 0.1 and 3% of pine-needle meal on body weight gain. 1. The pig fed 1% pine-needle meal showed significantly (P $lt; 0.01) higher body weight gain. 2. Body weight gain of 3% was lower than that of 1%. 3. Effects of pine-needle meal was appeared at early stage of growing period. 4. Pine-needle meal adding by 1% is desirable for growth, economical value, disease control and feed efficiency.

飼料作物의 輪作組合이 乾物收量, 土壤의 耐水性粒團率 및 窒素含量에 미치는 影響

安桂洙,趙聖均 順天大學校 1985 論文集 Vol.4 No.1

本 試驗은 飼料作物의 輪作組合이 建物收量, 土壤의 耐水性粒團率 및 室素含量에 미치는 영향을 究明하기 爲하여 夏節期飼料作物로 수단그라스계 잡종을 擇하고 冬節期飼料作物로 이탈리안 라이그라스, 호밀, 보리, 유채등을 擇하여 年間2期作∼3期作으로 6處理區 3反復 亂塊法으로 配置하여 圃場試驗을 遂行하였으며 얻어진 結果를 要約하면 다음과 같다. 1. 年間 乾物收量은 호밀과 수단그라스계 잡종을 輪作한 것이 가장 많았으며(P<0.01), 年間 2期作栽培가 3期作栽培 보다 有利하였다. 2. 土壤의 耐水性粒團率은 冬節期作付에서는 40%內外를 보이고 夏節期에는 35%內外를 보이고 있어 季節에 따른 差異는 多少 나타내지만 處理間의 有意性은 認定되지 않았다. 3. 土壤中의 T-N含量은 處理間의 有意性은 認定할 수 없으나 季節的 作付方式에서는 多少의 差異가 있었다. This experiment was carried out to investigate the effect of the rotational combination of forage cultivation on the dry matter yield, the water-stable aggregate rates and the nitrogen contents in the soil of the experiment field. The results obtained are summarized as follows; 1. In the annual dry matter yield, rye and sudangrass-hybrid plot was the highest(P<0.01), and the second crop system was higher than the third crop system. 2. The water-stable aggregate rates of the soil in the experiment field were about 40 %, 35% of winter and summer cropping system, respectively; however, no significant differences(p>0.05) between plots were observed. 3. In the total nitrogen contents in the soil of the experiment field, no significant differences(P>0.05)between plots, were noticed but there were somewhat differences in the winter cropping systems.

大學生의 써클활동에 관한 分析的 硏究

安桂洙,金赫坤,鄭映珍 순천대학 학생생활연구소 1985 學生生活硏究 Vol.4 No.-

油菜 品種의 播種期 反應

權炳善,金祥坤,安桂洙 順天大學校 1990 論文集 Vol.9 No.1

田作栽培에 있어서의 直播 播鍾期는 9月下旬에는 早期播鍾이 바람직하고 늦어도 10月上旬에는 播鍾하는 것이 安全多收穫의 適正 播種期였다. ㅁIn direct seeding cultivation of rapeseed at the upland, it was recommended to sow at late-September to obtain the maximum yield, and sowing date would not be later than early-October to get stable high yield.

刈取管理가 Pearl Millet[Pennisetum typhoideum]의 刈取後 新枝의 發生, 乾物重 및 枯死에 미치는 影響

安桂洙,趙聖均 順天大學校 1984 論文集 Vol.3 No.1

This experiment was carried out to investigate the effects of the different cutting stage and cutting height on the appearance, dry weight and the death of new bud (branch and tiller) of pearl millet (Pennisetum typhoideum). The cultivar used in the present study was feed mill. The experiment was undertaken in the Experimental Livestock Farm of Suncheon National College, 1984. The results obtained are summarized as follows: 1. The frequency of the branching was increased and the rate of the tillering was decreased as the high stubble height, both of the frequency of the branching and the rate of the tillering were also decreased as the late cutting stage. 2. The yield of forage mostly depended on the tiller regardless of cutting height, and minor portion of the yield was resulted from the branch. 3. In the number of dead bud, there was no significant difference in different cutting stage, and was increased as the low stubble height.

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.

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.