• Title, Summary, Keyword: Rye

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Expressed Sequence Tags of the Wheat-rye Translocation Line Possessing 2BS/2RL

  • Jang, Cheol-Seong;Hong, Byung-Hee;Seo, Yong-Weon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.44 no.3
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    • pp.302-307
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    • 1999
  • Hamlet (PI549276) possessing 2RL was obtained by cross between a wheat cultivar ND7532 (Froid/Centurk) and a rye cultivar Chaupon. Chaupon was known to have resistant gene to biotype L of Hessian fly [Mayetiola destructor (Say)] larvae. The wheat-rye translocation line (Coker797*4/Hamlet) was also known to be resistant to biotype L of Hessian fly larvae. We analysed a set of 96 ESTs from the wheat-rye translocation line (2BS/2RL). ESTs were classified by various physiological processings, such as primary metabolism, secondary metabolism, transcription, translation, transport, signal transduction, defense, transposable element, and others. Three sequences encoding thioredoxin peroxidase, 26S rRNA, and rubisco small subunits were homologous to registered genes in rye. Although limited number of clones were used to develop ESTs, these clones and their sequence information may be useful for researchers studying general physiology and molecular biology on the translocation line.

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Effects of Timing of Rye Harvest Date and Residue Residue Chemical Treatment Corn for Silage (호밀의 수확 및 제초제 처리시기가 후작 사일리지용 옥수수에 미치는 영향)

  • 김원호;김동암;김종덕
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.17 no.1
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    • pp.67-74
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    • 1997
  • This experiment was conducted in 1992 and 1993 at the forage experimental field, College of Agriculture and Life Sciences, Seoul National University, Suweon to determine timing of rye(Secde cemde L.) harvest and residue chemical treatment prior to tillage in minimizing the adverse effects of the rye residue on growth and yield of succeeding corn(Zea muys L.). Eight treatments were established in 1993 which included four treatments such as no paraquat (1, l'diiethyl- 4, 4'-bipyridinium dichloride), paraquat treatment at 10, 23, and both 23 and 10 days prior to tillage when rye was harvested on April 14, and another four treatments such as no paraquat, paraquat treatment at 1, 5 and 10 days prior to tillage when rye was harvested on April 26. No paraquat treatment significantly resulted in reductions in corn plant height on June 3 and 10 when rye was harvested on April 14, but differences in the plant height and leaf number of corn among treatments were generally nonsignificant. Corn LA1 and silk emergence were not affected by paraquat treatment times regardless of rye harvested dates, but silk emergence was delayed by 1 to 2 days with no paraquat when rye harvested on April 14. Corn dry matter and TDN yields were significantly increased by paraquat treatment at 10 and 5 days prior to tillage treatment when rye was harvested on April 14 and 26, respectively, but other agronomic characteristics such as dry matter percentage, ear percent to total dry matter, and stover and ear yields of corn at harvest showed little or no response to paraquat treatment times.

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Silages of Rye Harvested at Different Stages: A Study on Microbial Inoculants Responses in Improving Rye Silage Fermentation Quality

  • Srigopalram, Srisesharam;Ilavenil, Soundharrajan;Kuppusamy, Palaniselvam;Yoon, Yong Hee;Kim, Won Ho;Choi, Ki Choon
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.37 no.3
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    • pp.189-194
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    • 2017
  • The present study analyzes the role of Lactic Acid Bacteria Mixture (LBM) on improving rye silage quality. Rye of four different stages (Booting, Heading, Flowering, and Late flowering) was collected and silage was prepared. The nutrient profile analysis of experimental silage groups showed no significant changes between control and LBM inoculation. Interestingly, the pH of rye silage in LBM treatments showed significant reduction than control (p<0.05) in all stages of rye silage. However, lowest pH (3.69) resulted on booting stage among other stages of rye. Subsequently significant lactic acid production was noted in all stages of LBM inoculation than control. Conversely maximum lactic acid production of (5.33%DM) was noted at booting stage followed by (4.86%DM) in heading stage. Further the lactic acid bacterial (LAB) count in LBM inoculated group showed significant increase than control. Similarly, the silage of booting stage group registered maximum LAB population ($63.7{\times}10^6CFU/g$) after that heading stage ($32.3{\times}10^6CFU/g$). Further significant reduction in yeast growth and no fungal growth was noted in all LPM treatment groups. Hence, LBM inoculants could be a better additive for improving rye silage quality.

Changes in Shelf-Life, Water Activity, and Texture of Rye-Wheat Mixed Bread with Naturally Fermented Raisin Extract and Rye Sourdough during Storage (건포도 천연 발효액과 호밀 사워도우를 이용한 호밀-밀 혼합빵의 저장 중 저장수명, 수분활성도 및 조직감의 변화)

  • Kim, Mun-Yong;Chun, Soon-Sil
    • Korean journal of food and cookery science
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    • v.25 no.2
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    • pp.170-179
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    • 2009
  • This study examined effects on shelf-life extension and prevention of starch retrogradation in rye-wheat mixed bread (RWMB) samples prepared with substitutions of 20, 40, 60, and 80% rye sourdough (RSD) as well as a control made with the addition of naturally fermented raisin extract. These effects were investigated using mold growth, water activity, and textural characteristics during a storage period of 8 days at $20^{\circ}C$. The activities of the rye sourdough were examined in terms of pH, total titratable acidity, general bacteria, lactic acid bacteria, and yeast counts. As the incubation time of the sour dough increased, pH decreased, while total titratable acidity increased. General bacteria, lactic acid bacteria, and yeast counts increased with increasing incubation time. Mold grew on the external surface of the control group after 6 days and on the surface of the RSD bread samples after 8 days, respectively. With regard to water activity, the control group had increasing activity as the storage period increased. In addition, the 20, 40, 60, and 80% RSD samples had increasing water activities until the 4th day however, these strongly decreased by the 6th day. In terms of textural characteristics, as the storage period increased, hardness increased, while springiness, cohesiveness, and resilience decreased. There were no significant differences in gumminess among the samples. The control, 20, 40, and 60% RSD samples had decreases in chewiness with increasing storage time, however, the 40% RSD sample did not differ significantly during the storage period. Finally, water activity was negatively correlated with hardness (p<0.05). In conclusion, the results indicate that substituting rye sourdough in rye-wheat mixed bread has a prolongation effect on shelf-life, but no effect on the prevention of starch retrogradation.

Effect of Cover Crops on the Soil Properties and Fruit Quality in a Persimmon Orchard (녹비작물이 단감과원의 토양 특성과 과실품질에 미치는 영향)

  • Kim, Byeong-Sam;Cho, Kyung-Chul;Na, Yang-Gi;Yoon, Bong-Ki;Jung, Seok-Kyu;Cho, Kwang-Sik;Lee, Kyung-A;Choi, Hyun-Sug
    • Korean Journal of Organic Agriculture
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    • v.22 no.3
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    • pp.413-421
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    • 2014
  • This study was conducted into the effects of cover crops among the hairy vetch, red clover, rye, and hairy vetch+rye on the soil chemical and physical properties, and fruit yield in mature 'Fuyu' persimmon (Diospyros${\times}$kaki Thunb.) trees. The shallow-rooted red clover had poor dry matter production, resulting in the lowest coverage (66%) on the orchard floor. In contrast, the highest dry matter production observed in rye and hairy vetch+rye. Estimated N, P and K production from the cover crops were the highest on the hairy vetch+rye plots, increasing soil chemicals at a depth of 0-30 cm soil. Rye or hairy vetch+rye treatments decreased the soil bulk density and solid phase. As the hairy vetch+rye treatment increased fruit yield and sugar contents, it could be proposed as an suitable cover crop for improving productivity of persimmon trees.

Effect of Intercropping of Spring-Sowing Rye for Organic Soybean Cultivation (콩 유기재배시 춘파호밀 간작의 효과)

  • Yoon, Deok-Hoon;Nam, Ki-Woong
    • Korean Journal of Organic Agriculture
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    • v.17 no.4
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    • pp.529-538
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    • 2009
  • This study was conducted to investigate the sowing time and sowing methods of the Rye(Secale cereale L.) for an organic soybean farming system. It can be seen that there was no significantly differences on soil chemical properties in the rhizosphere due to the Rye's sowing season. A soil chemical properties due to the Rye's sowing date in spring, O.M.(g $kg^{-1}$) contents was increased at a late Rye's sowing dat, while on the other pH, Avail. $P_2O_5$(mg $kg^{-1}$) and CEC(cmol+ $kg^{-1}$) were decreased. A highest yields of soybean was achieved at the plot which the Rye was sowed on 20th March with two-line, 5 row and 70cm row-space.

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Analysis of Growth and Development in Rye Cultivars Based on the Feekes Scale in Rotation to Sowing Dates (추파용 호밀 품종의 파종기에 따른 Feekes scale에 의한 생장발달 분석)

  • Kim, Su-Gon;Kim, Jong-Duk;Kwon, Chan-Ho;Park, Hyung-Soo;Ko, Han-Jong;Ha, Jong-Kyu;Kim, Dong-Am
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.24 no.4
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    • pp.309-316
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    • 2004
  • This experiment was carried out to assess the growth and development of five rye(Secale cereale L.) cultivars based on the Feekes scale in relation to sowing date at the Experimental Livestock Farm, Seoul National University(SNU), Suwon from 30 September 2001 to 4 May 2002. The experiment was conducted in split plot design with three replications. The main plots consisted of two sowing date such as early(30 September) and late(15 October). The subplots consisted of rye cultivars of five different maturity groups such as 'Kodiak', 'Koolgrazer', 'Danko', 'Homil22' and 'Olhomil'. The plant height of early sowing rye cultivars was higher than that of late one. Among the rye cultivars tested, plant heights of early maturing cultivars were higher than those of the other cultivars. The tiller number at early sowing(48.0) was higher than that of late(24.3), however, late maturing cultivars were higher than those of the other cultivars among the rye cultivars tested. Growth and development in the early sowing were generally three days earlier than those of late sowing cultivars. Growth and development in 'Olhomil' rye cultivars was earlier than 'Danko' rye cultivars when sown in early, but 'Olhomil' and 'Koolgrazer' rye cultivars showed an early maturity than 'Danko' rye when sown in late. Therefore, the developmental stages of winter rye cultivars could be categorised the following maturity; 'Olhomil' and 'Koolgrazer' are early in maturity, 'Homil22' is medium, and 'Kodiak' and 'Danko' are late in maturity.

Comparison of Dry Matter Yield, Feed Value and Stock Carrying Capacity at Mixture of Rye, Triticale and Legume in Central Region of Korea (중부지역에서 호밀, 트리티케일과 두과 사료작물 혼파에 따른 생산성, 사료가치 및 가축사육능력 비교)

  • Park, Sang-Soo;Noh, Jin-Hwan;Park, Jun-Hyuk;Yoon, Ki-Yong;Lee, Ju-Sam
    • Korean Journal of Organic Agriculture
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    • v.20 no.1
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    • pp.71-80
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    • 2012
  • This experiments was conducted to investigate the influence on growth of rye, triticale with legume and investigated their productivity, feed value and stock carrying capacity in order to select the appropriate forage species in the central region of Korea. In the results, Rye+Red clover showed 5.2ton/ha of dry matter yield. But there was no significant difference with Triticale+Red clover and Rye in upland field. In paddy field, Rye+Hairy vetch showed 5.2ton/ha, but there was no significant difference with Triticale+Hairy vetch and Rye. Mixture effects with Rye, Triticale and Red clover, Hairy vetch by relative yield were more than 1.00 compared to monoculture, and their mixture effect was recognized in upland and paddy field. Relative feed value was highest in the applications of Triticale mixture in upland and paddy field. The average value of $K_{CP}$ and $K_{TDN}$ showed the highest one as 2.75head/ha/yr in Rye+Red clover in upland field and 2.84head/ ha/yr in Triticale+Hairy vetch in paddy field. According to the results, Rye+Red clover in upland field and Triticale+Hairy vetch in paddy field were considered to be the most appropriate winter forage crops for the central region of Korea in terms of productivity, feed value and stock carrying capacity.

Frequency and Geographical Distribution of B Chromosomes of Rye (Secale cereale L.) in Korea (한국 호밀(Scale cereale L.)의 B 염색체 출현빈도와 지리적 분포)

  • 방재욱
    • Journal of Plant Biology
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    • v.29 no.2
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    • pp.77-84
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    • 1986
  • The frequencies and geographical distribution of B chromosomes on 15 strains of rye (Secale cereale L.) collected from various localities in Korea were investigated. All of the 15 strains of rye investigated were found to have B chromosomes, and the frequencies of B chromosomes ranged from 6% to 51% with 20.1% average. Plants with 2Bs seem to be the most stable in populations with B chromosomes. Of 1400 plants examined, one plant was observed to have a deficient-B chromosome in Buyo rye.

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Differences in Productivity among Wheat, Barley and Rye for Forage

  • Kwon Byung-Sun
    • Plant Resources
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    • v.8 no.1
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    • pp.9-12
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    • 2005
  • TO select the most suitable crop and variety of forage for productivity at the southern part of Korea, The crops of wheat, barley and rye were grown from Oct. 1999 to June 2000. Paldanghomil variety of rye crop was shown to have the highest productivity in comparison to other varieties of crops used in this experiment. It showed relatively high plant height, number of tiller, forage yield and dry matter yield. There fore, it was concluded that Paldanghomil of rye crop was the most suitable crop with high yield in the southern part of Korea. The heritabilities of all characters were estimated to be high.

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