• Title, Summary, Keyword: Germination Ratio

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Effect of Air-Phase Germination with Anion Radiation and Water-Spraying on Germination Ratio, Sprout Growth, and GABA Contents of Germinated Brown Rice

  • Lim, K.T.;Chung, J.H.;Hong, J.H.;Kim, J.H.;Lee, E.T.;Im, A.L.
    • Agricultural and Biosystems Engineering
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    • v.7 no.1
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    • pp.42-47
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    • 2006
  • The objective of this study was to investigate the effects of air-phase germination with water-spraying and anion stimuli on germination ratio, sprout growth and ${\gamma}$-aminobutyric acid (GABA) of brown rice. Air-phase germination method with intermittent spraying water improved germination ratio and sprout growth by about 100% compared with the conventional water-soaking method. Anion radiation was applied during the germination process and improved the germination ratio, sprout growth and color quality of the germinated brown rice. Germination ratio and sprout growth were improved up to 9% with anion radiation, and its brightness was higher than brown rice germinated with no anion radiation. The air-phase germination with water-spraying improved the GABA content of germinated brown rice by about 8-9 times compared with that of brown rice.

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Effects of Germinating Types of Water-soaking & Air-exposure and Chitosan Treatment on Brown Rice Germination (침수 및 대기 발아방식과 키토산 처리가 현미발아에 미치는 영향)

  • Lee J.;Lim K.T.;Hong J.H.;Rhee C.O.;Choi Y.S.;Lee Y.B.;Choi S.M.;Chung J.H.
    • Journal of Biosystems Engineering
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    • v.31 no.4
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    • pp.363-368
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    • 2006
  • The effects of germinating types and treatments of acetic acid, water-soluble and water-insoluble chitosan on the germination ratio and sprout length of brown rice were investigated in this study. The treatment of 0.001% acetic acid improved the germination ratio and sprout growth of brown rice in the germinating types of a air-exposure method after water-soaking (Type II) and a repetitive method of water-soaking & air-exposure (Type III), not water-soaking method (Type I). The treatment of water-soluble chitosan with higher concentration caused higher germination ratio and faster sprout growth. The treatment of water-insoluble chitosan repressed the germination and the sprout growth of brown rice. The germination ratios of brown rice germinated by the Type III were higher than those by Type I and Type II for all the treatments of acetic acid and water-soluble & water-insoluble chitosan as more than 97% germination ratio. Also, the Type III method accelerated the sprout growth of brown rice compared with Type I and Type II.

Studies on the Germination Promotion of the Zoysia japonica seeds. (한국잔디(Zoysia japonica Steud.) 종자의 발아촉진에 관한 연구)

  • 전우방
    • Asian Journal of Turfgrass Science
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    • v.1 no.1
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    • pp.30-36
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    • 1987
  • In order to promote the germination of Korean lawn grass(Zoysia japonica Steud.) seeds a gravimetric seed selection with a mixed chemical solution and the germination promotion with KOH treatment were studied and following results were obtained. 1. When immersed into methanol(S.G., 0.7) 14 percent of immature seeds were precipitated. 2. With water (S.G., 1.0) 36.5 percent of mature seeds were submerged. 3. On a mixture of carbon tetrachloride (S.G., 1.6) and ethylether (S.G., 0.7) in a ratio of 4:6 the seed selection was most effective. 4. When treated with KOH solution the germination rate was 71.01 percent in contrast to 6.0 percent of germination without the treatment. 5. As for concentration of KQH solution, 15 percent depressed the germination (46.7 %) whereas above 20 % the germination rate was gradually increased (79.32 %) up to 40 percent of concentration where the concentration started to depress germination ratio (77.32 %). 6. Finally, in connection with the duration of KOH treatment, a time lapse of up to 20 minutes depressed the germinating ratio(70.02 %) and 30 minutes to 45 minutes increased this ratio to 94.52 percent. 60 minutes of treatment depressed the germination to 75.62 percent.

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Phyto-toxicological Effects of PAHs on the Germination and Growth of Alfalfa, Barley, and Tall Fescue (종자 발아율 지표 및 초기 묘조 성장에 의한 다환방향족탄화수소의 식물 독성 측정)

  • Kim, Yong-Bum;Chung, Yong
    • Environmental health and toxicology
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    • v.17 no.1
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    • pp.29-35
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    • 2002
  • The test of germination has been used as a good indicator to assess the toxicity of chemicals to plant. This study was carried out to investigate the effect of PAHs, anthracene and phenanthrene, on germination ratio, germination index and germination time of barley, tall fescue and alfafa. Anthracene and phenathrene induced to decrease the seedling length and increase the germination time of the experimental plants. But they did not affect the maximum germination ratio. While it was not correlated between seedling length and final germination ratio, it was shown a close relationship between seedling length and mean germination time of the plants. These results suggested that the mean of germination time and seedling growth could be useful to exmine the phyto -toxicological effect of PAHs. The mixture of anthracene and phenanthrene was examined to investigate the combined effect on seedling length; the mixture induced the reduction of seedling. This was meant that the mixture toxicity of PAHs might be not shown in the sum of each chemical toxicity.

Effects of Seed Coating, Slope Control and Soil Mulching on Seed Germination and Seedling Growth of Rehabilitation Plants (종자피복, 경사조절 및 토양멀칭 처리가 녹화식물의 발아와 생장에 미치는 영향)

  • Lee, Byung-Tae;Park, Chong-Min
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.9 no.6
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    • pp.38-51
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    • 2006
  • This study was carried out to improve rehabilitation effect by hydro-seeding methods on denuded slopes. Lespedeza cyrtobotrya, Indigofera pseudotinctoria, Arudinella hirta, Poa pratensis, and Lolium perenne were used in this study. The results of the germination and growth characteristics by seed coating, slope control and soil mulching treatments are summarized here. Seed coating of those plants had an effect on germination ratio, germination force, $LD_{50}$, and seedling growth of stem, leaf and root. The seed coating effect was highest for I. pseudotinctoria while the seedling growth was best for L. cyrtobotrya. Vermiculite+Talcum was the best coating material for germination and seedling growth of the plants. As the slopes were steeper, germination ratio was lower and seedling growth of stem and root decreased. Lots of seeds and soils were swept away when the slope was steep. Soil mulching was effective for germination, seedling growth of stem and root, and soil stabilization. It was more effective when the slope was steeper. Coir net was the most effective soil mulching material n this study.

Seed Germination Study to Determine the Feasibility of Local Resources as Materials for Ecological Restoration (생태복원용 소재로서 현지자원의 이용가능성 파악을 위한 발아실험 연구)

  • Kim, Kyung-Hoon;Kim, Young;Joo, Paik;Hur, Young-Jin
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.18 no.1
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    • pp.153-163
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    • 2015
  • The study was conducted to develop ecological restoration method of damaged area in DMZ vicinities. As the material for the ecological restoration, forest soil and trees waste have been used. Forest soils were collected for experiments in Yanggu, Gangwon Province. Effect of ecological restoration was analyzed through germination experiment. Germination experiment was performed using 12 kinds of woody and herbaceous seeds. Woody and herbaceous seed germination in test pot was relatively evenly. Mixed material consisting of forest soil and trees waste seemed a possibility as the material for the restoration. The effects on seed germination were higher in the case of mixing more than 70% by volume ratio of local resources. Total number germinated individuals were different depending on the mixing ratio of soil sampling depth. Individual plants showed different trends depending on the experimental combination. Results of the woody seed germination were affected only in the soil sampling depth. Seed germination of herbaceous received a combined effect on soil sampling depth and mixing ratio.

Effects of NaOCl Treatment on Seed Germination and Capsule Formation of Level of Flowering in Cymbidium goeringii (춘란(Cymbidium goeringii)의 개화정도별 삭과 형성 및 종자 발아에 미치는 NaOCl의 영향)

  • Lee, Dae Gun;Koh, Jae Chul
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.4
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    • pp.271-277
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    • 2010
  • The study is aimed to obtain the basic data for developing new variations of wild spring orchid. The results was investigated the capsules' formational characteristics and the germination ratio after having been self-pollinated by dividing the flowering period into the 5 stages into budding time, semi-flowering, full-flowering, 10 days after flowering, and 20 days after flowering. The fruit setting ratio was the highest as 100% in the plant which had been pollinated 20 days after the flowering, while the weight of the capsule was heaviest in the orchid which had been pollinated in semi-flowering period. As the result of investigating the germination ratio by dividing the period into 5 stages, it was the highest in the plant which had been pollinated during the semi-flowering period, and in the result of investigating the germination ratio by dividing the seeds harvesting days into the 3 stages, such as, 150 days, 165 days and 180 days after the pollination, it was highest as 5% in the orchid whose seeds had been harvested 150 days after the pollination. In the result of examining the germination ratio of the seeds treated with NaOCl, the those treated with 2% of NaOCl showed the highest as 67% in the germination ratio.

Development of an Automatic Brown Rice Germinating System of Air-Phase Type with Intermittent Water Spraying and Anion Radiation (간헐 분무와 음이온 방사를 가진 공기노출형 자동 현미발아시스템의 개발)

  • Lim, Ki-Taek;Kim, Jang-Ho;Chung, Jong-Hoon
    • Journal of Biosystems Engineering
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    • v.36 no.3
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    • pp.187-194
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    • 2011
  • In this study an automatic germinating system for germinated brown rice (GBR) was developed for accelerating germination and sprouting of brown rice. With the developed germinating system, the effects of anion radiation treatment on germination ratio, sprout growth, color quality and ${\gamma}$-aminobutyric acid (GABA) content of brown rice were investigated. This system can fast produce GBR by controlling the environmental conditions such as ambient temperature, relative humidity, and proper anion radiation. Air-phase germination with intermittent water spraying improved both germination ratio and sprout growth by about 2.2 and 2.3 times, respectively, compared to the conventional water soaking method. Our results strongly suggest that this germinating system that provides air-phase germination with intermittent water spraying and anion radiation can produce germinated brown rice with good color quality, high GABA content, and fast germination ratio as well as sprout growth.

Effect of Germination Condition and Drying Methods on Physicochemical Properties of Sprouted Brown Rice (발아조건 및 건조방법이 발아현미의 이화학적 특성에 미치는 영향)

  • 김선림;손영구;손종록;허한순
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.46 no.3
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    • pp.221-228
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    • 2001
  • This study was carried out to investigate the effect of germination condition and drying temperature on growth and physicochemical properties of brown rice. Three brown rice seeds of Ilpumbyeo, Dasanbyeo and Heugjinjubyeo were stored at room temperature for six weeks to test the time-sequence germination viability. Relatively stable germination ratio was maintained until 2 weeks after storage. However, 3 weeks after storage, germination ratio of brown rice seeds started to decrease rapidly and their germination ratio was lower than 80%. For this reason, brown rice was recommended for seeding within 2 weeks after hulling. During the initial 5 days, germination ratio of 24 hours pre-soaking brown rice was higher about 2-3% than that of non-soaking brown rice. The $25^{\circ}C$ was considered as the most favorable temperature for brown rice germination, because of the high germination ratio and desirable coleoptile growth of the brown rice, and little seed rotting symptoms. The scanning electron micrographs showed the structural differences between hot-air dried and freeze dried germinated-brown rice kernel. In the freeze dried germinated-brown rice, seed coat (pericarp, tegmen and aleurone layer) was mechanically disrupted from the endosperm, and many cleavages were observed among starch storing cells and starch granules. The endosperm of freeze-dried brown rice kernels formed the sponge-like structures and showed the fragile traits. For this reason, hot-air drying is considered as more suitable method than freeze drying for germinated-brown rice. The crude protein and amylose contents were slightly changed, but there were no significant differences during the germination period. Crude fiber content was decreased, but crude Int and total amino acid contents were increased as seeding days increased. A rapid increase in $\alpha$-amylase activities of germinating brown rice was observed at S days after seeding, and $\alpha$-amylase activities were decreased from 8 days after seeding. Total free sugar contents were decreased during the germination period. There was continuous decline in the contents of sucrose and glucose until 8 days after seeding, but fructose and maltose content were gradually increased from the 5 days after seeding.

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Effect of broccoli sprouts germination by soaking water condition (침지조건이 브로콜리 발아에 미치는 영향)

  • Park, Ju-Young;Yoo, Chang-Hoon;Lee, In-Hwa;Hong, Seung-Ho;Cha, Jin-Myeong
    • KSBB Journal
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    • v.23 no.6
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    • pp.551-553
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    • 2008
  • In order to optimization germination condition of broccoli, we carried out germination ratio experiment under soaking time, soaking temperature, oxygen concentration. The germination ratio results 98.5% following as soaking water having 10 ppm DO(demanded oxygen) during 4 hr at $20{\sim}30^{\circ}C$. The result of provide the dissolved oxygen water, when the concentration of oxygen water were 7, 12 ppm, germination ratio were observed about 76%, 92%. Also, we showed the growth rate of 2 times in 12 ppm compared with 7 ppm. Consequently, germination ratio of broccoli increased cultivation condition at soaking water having high concentration oxygen more than supply to oxygen water of high concentration.