• 제목/요약/키워드: Secale cereale

검색결과 80건 처리시간 0.029초

호맥 ( Secale cereale L. ) 의 청예이용을 위한 재배모형에 관한 연구 I. 답리작호맥의 수확시기별 청예사료생산 및 Silage품질 (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)

  • 송진달;임근발;양종성
    • 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%.

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

  • 방재욱
    • Journal of Plant Biology
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    • 제29권2호
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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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2,4-Dinitrophenol을 처리한 호밀(Secale cereale L.) 유식물의 질산염 환원에 관한 연구 II. 호밀 유식물 뿌리의 질산염 환원효소 활성에 대한 2,4-Dinitrophenol의 영향 (Studies on in vivo Nitrate Reduction in Rye (Secale cereale L.) Seedlings Treated with 2,4-Dinitrophenol II. Effect of 2,4-Dinitrophenol on in vivo Nitrate Reductase Activity in the Roots of Rye Seedlings)

  • 조규찬
    • 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.

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Reaction of Global Collection of Rye (Secale cereale L.) to Tan Spot and Pyrenophora tritici-repentis Races in South Dakota

  • Abdullah, Sidrat;Sehgal, Sunish K.;Glover, Karl D.;Ali, Shaukat
    • The Plant Pathology Journal
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    • 제33권3호
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    • pp.229-237
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    • 2017

  • Rye (Secale cereale L.) serves as an alternative host of Pyrenophora tritici-repentis (PTR) the cause of tan spot on wheat. Rye is cultivated as a forage or cover crop and overlaps with a significant portion of wheat acreage in the U.S. northern Great Plains; however, it is not known whether the rye crop influences the evolution of PTR races. We evaluated a global collection of 211 rye accessions against tan spot and assessed the diversity in PTR population on rye in South Dakota. All the rye genotypes were inoculated with PTR races 1 and 5, and infiltrated with Ptr ToxA and Ptr ToxB, at seedling stage. We observed 21% of the genotypes exhibited susceptibility to race 1, whereas, 39% were susceptible to race 5. All 211 accessions were insensitive to both the Ptr toxins. It indicates that though rye exhibits diversity in reaction to tan spot, it lacks Ptr ToxA and ToxB sensitivity genes. This suggests that unknown toxins or other factors can lead to PTR establishment in rye. We characterized the race structure of 103 PTR isolates recovered from rye in South Dakota. Only 22% of the isolates amplified Ptr ToxA gene and were identified as race 1 based on their phenotypic reaction on the differential set. The remaining 80 isolates were noted to be race 4. Our results show that races 1 and 4 are prevalent on rye in South Dakota with a higher frequency of race 4, suggesting a minimal role of rye in the disease epidemiology.

  • https://doi.org/10.5423/PPJ.OA.12.2016.0265 인용 PDF KSCI

호밀(Secale cereale L.)의 핵형분석과 rDNA의 Physical Mapping (Karyotype Analysis and rDNA Physical Mapping in Rye (Secale cereale L.))

  • 이준수;서봉보;김민
    • 한국육종학회지
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    • 제42권2호
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    • pp.163-168
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    • 2010

  • 본 실험은 곡류 작물중에서 육종의 소재로써 많은 장점을 지닌 호밀을 Gimsa C-분염법과 FISH기법을 이용하여 구성이질 염색질과 5S와 18S-26S rRNA 유전자의 염색체상의 위치를 확인하고자 본 실험을 수행하였다. 그 결과를 요약하면 아래와 같다. 표지되었으며 2차협착으로 부수체가 존재하는 1번 염색체의 부수체의 말단과 5번 염색체의 중간에 표지되었고, 18S-26S rDNAs 유전자는 1개의 염색체에 표지되었으며 이 염색체는 2차협착으로 부수체가 존재하는 1번 염색체의 인 형성체 부위에 표지되었다. 1번 염색체에는 5S 와 18S-26S rDNAs 유전자가 표지되었고 5번 염섹체에는 5S rDNA 유전자만이 표지되었다.

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