• 한국초지조사료학회지
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• 제16권4호
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• pp.299-306
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• 1996

This experiment was conducted from 1991 to 1993 at the forage experimental field, College of Agriculture and Life Sciences, SNU, Suweon to investigate the effects of previous crop residues on growth and yield of succeeding corn(2ea mays L.) and also to determine the best double cropping system necessary to maximize the total dry matter yield of winter forage crops plus corn for silage. In this experiment, treatments consisted of no crop as a control, late maturing Kodiak rye(Seca1e cereale L.), Bamapoli forage rape(Brassica napus Subsp. oleifera L.), G-sprinter oats(Avem sativa L.), Chief crimson clover(Trifolium incarnatum L.), Jackson Italian ryegrass(lo1ium rnultiJlorum L.), Vantage vetch(Vicia sativa L.) and early maturing Koolgrazer rye(Seca1e cereale L.). Corn leaf number and silking date were not significantly affected by previous crop residues, but the leaf number of corn following Italian ryegrass was reduced by 1.9 relative to no previous crop. The plant height and LA1 were significantly reduced during early development when corn followed Italian ryegrass and late maturing Kodiak rye (p<0.05). The dry matter and estimated TDN yields of corn were significantly reduced when corn followed Italian ryegrass and late maturing Kodiak rye. The yield reductions for corn following Italian ryegrass, late maturing Kodiak rye and early maturing Koolgrazer rye, relative to com when no previous crops were planted, were 34, 17 and 8%, respectively. Therefore, the reduction in corn growth and yield in this experiment could be explained by an allelopathic effect resulting from the Italian ryegrass and rye residues. The highest total dry matter yield of 30,509kg/ha was obtained from an early maturing rye-corn double cropping sequence in combination among the eight cropping systems.

• 한국초지조사료학회지
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• 제12권3호
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• pp.173-177
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• 1992

This experiment was carried out to determine the effect of harvesting dates on the dry matter yield and quality of "Kool grazer" winter rye(Seca1e cereale L.) as a soilage crop at the Forage Experimental Field of College of Agrlc. and Life Sciences, SNU, Suweon. Four-day harvasting interval was allocated to measure the growth, yield and quality of rye from April 14 to May 18, 1987. Rye was rapidly grown as 3 cm/day and the growth was linearly recorded from the elongation to flowering stage. The dry matter and in vitro digestible dry matter(1VDDM) yields per ha were linearly increased up to 0.26 and 0.19 tonlday from April 14 to May 4 and April 14 to 29, respectively, but major breaks in yield increases occurred at the 50% heading stage, than yields increased. The highest crude protein yield was observed at the first heading stage of April 29, then decreased. Acid detergent fiber (ADF) and crude protein(CP) contents of rye at the heading stage of May 5 were 35 and 17%, respectively and the nutritive value of rye in terms of ADF and CP contents was evaluated as the I st grade hay, but neutral detergent fiber(NDF) content of rye was 47 % at the boot stage ofApril 22 and evaluated as the 2nd grade hay in terms of NDF content. The results indicate that the first heading stage or the end of April would be the most suitable harvesting time for early maturing winter rye as a soilage crop in terms of yield and quality in the middle northwestern coast rcgion of Korea. of Korea.

• 한국유기농업학회지
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• 제28권4호
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• pp.579-589
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• 2020

고추역병 다발생 포장에서 녹비작물인 호밀재배에 따른 토양환경 변화와 고추역병 경감 효과를 조사하였다. 토양 물리성을 분석한 결과에서는 호밀재배에서 용적밀도와 공극률이 증가하였다. 또한, 토양 삼상의 분포는 고상에서는 관행재배와 차이가 없었으나, 기상은 관행재배 보다 증가하고 액상은 감소하였다. 토양 내 인지질 지방산을 추출하여 지표 지방산으로 분석한 미생물 군락의 상대밀도는 호밀재배에서 유의성 있게 증가하였으며, 호기성균/혐기성균의 비율의 비율도 호밀재배에서 높게 나타났다. 환경스트레스 지표인 포화지방산/불포화지방산 비율과 cyclo-지방산/전구체 비율은 호밀재배가 관행재배 보다 낮아 토양환경이 개선 된 것으로 나타났다. 호밀재배에 따른 고추역병의 경감효과를 조사한 결과 호밀재배가 관행재배 보다 30.7% 낮은 발병률을 나타냈다. 이상의 결과를 요약해볼 때, 고추역병 다발생 포장에서 녹비작물인 호밀재배는 토양환경을 개선하고 고추역병 발병을 감소시킬 것으로 사료된다.

• 한국의류학회지
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• 제2권2호
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• pp.269-276
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• 1978

This thesis studied the costumes of Gwan-Rye(관예). the lowest ranking officials of Yi-Dynasty. It researched the written materials and compared it with relics of Gwan-Rye costumes. The gists of the result are; 1) The Koryo tradition of Gwan-Rye costumes continued until the early days of Yi-Dynasty. 2) The Gwan-Rye costumes can be classified into two styles. One is Sa-Ryung(사영) style, which consisted of Dan-Ryung(단령) robe and Jo-Geon(조시) as head gear. Na-Jang(라장) style. the another, consisted of Dan-Ryung. Ban-Bi-Ui(반비의) and Jo-Geon. 3) These styles changed around the days of Yeon-San(연산), the 10th King of the Dynasty. The Na-Jang of later days wore Cheop-Ri(첩리) robe instead of Dan-Ryung. And the Sa-Ryung costume was devided into three different styles. They are (1) Gat(립)- Cheop-Ri (2) Bung-Geo-Ji(단립)-Chang-Ui(창의) (3) Gat- Kwoe-Ja(쾌자) styles.

• 한국초지조사료학회지
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• 제8권3호
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• pp.165-168
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• 1988

This study was conducted at the rice field of Livestock Experiment station, Suweon to investigate the effects of harvesting time on forage production and quality of rye (Secale cereale L.) on paddies. The results obtained are summarized as follows; 1. Fresh matter yield was peaked at the 10 days (May 10) after heading, however, dry matter yield was increased in proportion to maturity. 2. Digestibility (in vitro) showed the 83-77% by heading stage (Apr. 25-30) but decreased to 66-58% after heading stage. 3. Digestible yield reached to maximum level, 619.2 kg/lOa at the 10 days after heading (May 10). 4. The content of crude protein and crude fat in forage rye was decreased with advancing the maturity. 5. The lactic acid content of rye silage ranged from 1.3% to 2.0%.

• Journal of Plant Biology
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• 제16권1_2호
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• pp.30-38
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• 1973

To study the response to plant growth by the environmental factors, the effects of application of nitrogen on changes in the yield, crude protein, amino acids, chlorophyll, carotene, total phosphorus, acid-soluble phosphorus, phospholipids, RNA, and DNA were investigated with westerworlds 9Lolium sublatum) and perennial rye-grasses (Lolium perenne). The amounts of dry weight, crude protein, amino acids, chlorophyll, carotene, total phosphorus, acid-soluble phosphorus, phospholipids, RNA and DNA of both rye-grasses increased with adequately increasing nitrogen, and reached a maximum with an adequate application of nitrogen. The relationships between yields and crude protein contents, crude protein and RNA contents, and yields and RNA contents of westerworlds and perennial rye-grasses were found to be positively correlated, respectively. Therefore, in general, the response to plant growth by the environmental factors such as nitrogen nutrient may be summarized as follows: Environmental factors\longrightarrowDNA\longrightarrowRNA\longrightarrowProtein\longrightarrowPlant growth

• Plant Resources
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• 제7권3호
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• pp.170-173
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• 2004

To determine optimal plant density of forage rye in southern areas of Korea, forage rye cv. Paldanghomil, the highest yielding variety among experimental varieties of forage rye, was grown under five different plant density. Yield components such as plant height, and number of leaves were highest at the broad casting. Plants sown at broadcasting also showed highest fresh and dry matter yield. When plants were grown of the broad casting, they showed higher values in content of crude protein and lower values in contents of crude fiber such as neutral detergent fiber(NDF), acid detergent fiber(ADF), cellulose and lignin. There was no relationship between variation of in vitro dry matter digestibility(IVDMD) and plant density. Plants sown at the broad casting showed highest digestible dry matter yields.

• Journal of Biosystems Engineering
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• 제35권6호
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• pp.408-412
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• 2010

Rheological properties of cereals such as rye are great important for the design of die for extrusion and the development of models for extrusion process. Therefore, this study was carried out to analyze the rheological properties according to moisture content of rye flour and extrusion temperature. Rheological properties of rye flour were investigated by using a capillary rheometer for moisture content of three levels (30, 35, 40%) and extrusion temperature of three levels (120, 130, $140^{\circ}C$). Determination coefficients for the relationship between apparent shear stress ($\tau_{ap}$) and apparent shear velocity ($\gamma_{ap}$) were relatively high in the range of 0.973 ~ 0.997 under each extrusion condition. The values of consistency index (K) was decreased with increasing moisture content and extrusion temperature. However, the value of flow behavior index (n) presented the highest value at moisture content of 35%, but it was not affected by extrusion temperature.

• Journal of Plant Biology
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• 제34권4호
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• pp.283-288
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• 1991

This work was carried out to determined the effect of 2,4-dinitrophenol(DNP) on in vivo nitrate reductase activity in the root of 6 day old rye (Secale cereale L.) seedlings. The nitrate reductase activity in the roots of 6 day old rye seedlings pretreated with 0.5 mM DNP was higher than that of the control group in all the experimental conditions. The optimal concentration of KNO3 for maximum nitrate reductase activity was 10 mM in both control and treated group. The nitrate reductase activity in the treatment of 10 mM KNO3 gradually increased for 4 h in both groups, and then maintained constantly. The nitrate reductase activity occurred per hour was highest at 1 h in both groups, while it was declined by large degrees as time goes on. The daily pattern of nitrate reductase activity was gradually decreased in both groups with the passage of day. The optimal pH for this experiment and a previous paper (Kwon et al., 1991), it was determined that the nitrate reductase activity in both roots and shoots of rye seedlings was increased by the treatment of 0.5 mM DNP, and particulary in both groups, the nitrate reductase activity in the roots of rye seedlings was higher than that in shoots of them.

• 한국초지조사료학회지
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• 제16권4호
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• pp.338-342
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• 1996

Fodder rye(cv. Coolgrazer) was cultivated on paddy soils under different application rates of animal manures (CM=cow manures mixed with sawdust, SM=swine manure mixed with sawdust) during 1994-1995. Rice crop (CV. Geumo) was transplanted in the same plots after fodder rye. The effects of cattle manure application on the yield performance of rye and their influence to growth, yields and quality of rice were evaluated. Fodder rye produced larger plant growth and higher silage yield in the cattle manure application than in the chemical feltilizer (CF). Dry matter yields of rye silage were 3.08 ton(CF), 4.23 ton(CM) and 6.03 ton/ha(SM), respedively. Under heavy application of cattle manures plant height, number of tillers and grains per panicle were increased, but 1,000 grains weight and total yields of rice were decreased. Yields of brown rice were 5.20 ton(CF), 5.15 ton (CM) and 4.95 ton/ha(SM), respectively. Higher concentration of amylose was found in the heavy application of cattle manures. Amylose contents of rice were 16.8%(CF), 19.1%(CM) and 19.4%(SM).