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A Comparative Study on the Dry Matter Yield and Nutritive Value from Rye and Hairy Vetch Seeding Types in Daejeon Area (대전지역에서 호밀과 헤어리베치의 파종유형벌 사초의 건물수량 및 사료가치 비교연구)

  • Lee, In-Duk;Lee, Hyung-Suk
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.26 no.4
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    • pp.207-214
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    • 2006
  • The object of this experiment was to suggest the optimum utilization upon rye and hairy vetch crops in Daejeon area. The field trials were conducted from 2002 to 2004 at Chungnam National University in order to evaluate the dry matter yield and quality of rye, hairy vetch, and rye+hairy vetch mixtures. The experiment was designed with split plots (main plot : seeding rate as rye mono culture, hairy vetch monoculture, rye 80%+hairy vetch 20%, rye 60%+hairy vetch 40%, and sub plot : 4 cutting stages as boot, heading, anthesis, milk). The average DM yield for 2 years had a difference on seeding rate and harvesting stages. The DM yield of rye monoculture was higher than those of the other seeding rates. There were significant increases in advanced stages in all treatments. In chemical composition, they also had a difference on seeding rates and growth stages. Hairy vetch monoculture was higher in crude protein (CP) and dry matter digestibility (DMD), but lower in fibrous compound than those of the other seeding rates (p<0.01). The crude protein dry matter (CPDM) and digestible dry matter yield was higher in rye 80%+hairy vetch 20% mixture when it was harvested at anthesis to milk stages. The results of this experiment indicated that when it was harvested at anthesis to the milk stages, rye 80%+hairy vetch 20% mixture was more effective in enhancing the DM yield and forage quality in Daejeon area.

Frequency of B-chromosomes in Rye (Secale cereale) Cultivated in Paldang (팔당산 호밀(Secale cereale) B 염색체의 출현빈도에 대하여)

  • 이웅직
    • Journal of Plant Biology
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    • v.24 no.4
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    • pp.181-190
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    • 1981
  • Rye in Paldang was investigated with regard to the occurrence of B-chromosomes from 1963 through 1977, and frequencies of B-chromosomes were as follows; 2% (1963), 8% (1964), 8% (1965), 15% (1966), 11.5% (1968), 11.7% (1969), 20% (1975), 19.6% (1976), and 12.8% (1977). The result of the chi-square test showed statistically no significant difference between the frequency of B-chromosomes each year. The analysis revealed that distribution of B-chromosomes seemed to be relatively uniform in the rye field. With regard to the sample size 50 plants were quite enough to estimate the frequency of B-chromosomes in rye population. Quadrivalent due to translocation heterozygote were observed in the population of Paldang rye from 1966 through 1977, their frequencies being 1 to 7%. Numerical increase of B-chromosomes in rye due to non-disjunction process in the pollen as well as in the ovules was well-known phenomenon, whereas B-chromosomes tended to be eliminated in meiosis and seed fertility of rye was reduced in the individuals with B-chromosomes. The mechanism of gain or loss for B-chromosomes might support the equilibrium of B-chromosomes in Paldang rye population.

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effects of Previous Crop Residues on Growth and Yield of Corn for Silage (전작물의 잔주가 사일리지용 옥수수의 생장과 수량에 미치는 영향)

  • 김원호;김동암
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.16 no.4
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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.

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effect of Harvesting Daates on Forage Yield and Qality of Winter Rye (청예용 호밀의 수확시기가 사초의 수량과 사료가치에 미치는 영향)

  • 김동암;권찬호;한건준
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.12 no.3
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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.

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Fermentative characteristics of rye sourdough containing Omija extracts (오미자 발효액을 이용한 호밀 사워반죽(sourdough)의 발효 특성)

  • Byun, Jong-Beom;Lee, Jin-Sil
    • Korean Journal of Food Science and Technology
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    • v.49 no.2
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    • pp.168-172
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    • 2017
  • In this study, the fermentative characteristics of rye sourdough fermented with Omija extract were investigated. The pH and total titratable acidity, numbers of yeast and lactic acid bacteria, and expansion rate were measured. While the pH of Omija rye sourdough decreased from 5.60 to 3.86, the total titratable acidity significantly increased from 2.39 to 8.50 with fermentation time (p<0.05). The numbers of yeast and lactic acid bacteria significantly increased for 18 h of fermentation period (p<0.05). The expansion rate of Omija rye sourdough showed a maximum of 183%, more than 47% more than the highest value of rye sourdough (129%). These results suggest that the application of Omija extract for making sourdough could be a good way to decrease the sanitary risk especially for early stage of sourdough fermentation. In addition, Omija rye sourdough could contribute to improvement of baking quality such as volume increase and flavor improvement of rye bread.

A Study on Gwan-Rye Costumes (관예복식고 -사영과 라장을 중심으로-)

  • Lee Kyung Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.2 no.2
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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.

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Effects of Nitrogen Nutrient on the Yield, Protein, Amino acid, Chlorophyll, Carotene, RNA, and DNA Contents in Rye-Grasses (Rye-grass류의 물질생산, 단백질, aminotks, 엽록소, Carotene, RNA 및 DNA의 함량에 미치는 질소의 영향)

  • 장남기
    • Journal of Plant Biology
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    • v.16 no.1_2
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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

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Studies of Cultivation Model of Rye (Secale cereale L.) as a Forage Crop I. Effects of harvesting time on forage production and quality of rye(Secale cereale L.) silage on paddies (호맥 ( Secale cereale L. ) 의 청예이용을 위한 재배모형에 관한 연구 I. 답리작호맥의 수확시기별 청예사료생산 및 Silage품질)

  • 송진달;임근발;양종성
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.8 no.3
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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%.

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Analysis of Rheological Properties of Rye Flour (호밀가루의 레올로지 특성분석)

  • Lee, Gwi-Hyun
    • Journal of Biosystems Engineering
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    • v.35 no.6
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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.

Influence of Plant Density on Growth, Yield and Nutritional Quality of Forage Rye

  • Kwon, Byung-Sun
    • Plant Resources
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    • v.7 no.3
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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.

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