• Title/Summary/Keyword: plant mixture

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Studies on Seed Mixtures for Slope Revegetation of the Road (도로사면녹화를 위한 식생배합에 관한 연구)

  • 이재필;김남춘;홍성관
    • Journal of the Korean Institute of Landscape Architecture
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    • v.23 no.2
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    • pp.113-123
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    • 1995
  • This study was conducted to find out appropriate rates of seed mixture of both native and foreign plants in order for stabilization of early afforestation and proper vegetation on road slope. The results are summarized as follows: 1. Characteristics of germination : After seeding, 2 weeks for both Lespedeza bicolor and Lespedeza cuneata, and 4 weeks for both Arundinella hirta and Zoysia japonica were needed for vigorous germination, and 1-4 wee17s for 3 cool-season grasses were spent for gradual germination. 2. Plant height : There was no difference between Lespedeza cuneata and Lespedeza bicolor in plant height by 7 treatments. As mixture rates of cool-season grasses were lowered, plant height of Arundinella hirta became longer. Descending order of co81-season grasses for plant height was Tall fescue, Perennial ryegrass and Creeping redfescue. 3. Number of tillers : The number of tillers tended to increase in the experimental plots where competition was low. 4 Ground cover rate : Ground cover rate was the highest in Mixture IV (96.7%) and was fluctuated from 13.3% on Sept. 13 to 45% on Nev. 3 in Mixture III. Descending order of gronud cover rates in 7 treaments was Mixture IV, Mixture III. Mixture II, Mixture Ⅶ, Mixture V, Mixture Ⅵ, Mixture I, and Mixtur III when measured on Oct. 13 5. Visual assessment: High preferences were observed on Mixture IV and Ⅶ In sun the best seed mixtures were Mixture IV and Ⅶ. It meant that (1) either mixture of 70% the native plants with 30% cool-season graaes or (2) mixture of 80% the native plants with 20% cool-season glasses was best for this study.

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Survey of Fungicide Resistance for Chemical Control of Botrytis cinerea on Paprika

  • Yoon, Cheol-Soo;Ju, Eun-Hee;Yeoung, Young-Rog;Kim, Byung-Sup
    • The Plant Pathology Journal
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    • v.24 no.4
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    • pp.447-452
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    • 2008
  • Four hundred and sixty six isolates of B. cinerea were obtained from infected leaves, stems and fruits of paprika grown in greenhouses or plastic film houses in Gangwon province, Korea, between August and November in 2006 and 2007. These isolates were classified into five representative phenotypes of resistant (R) and sensitive (S) reactions as SSR, SRR, RSS, RRS and RSR according to the responses of isolates against benzimidazole, dicarboximide and N-phenyl-carbamate fungicide in order. The percentage of five phenotypes were 51.3, 2.4, 35.6, 8.1 and 2.6%, respectively. The SSR phenotype (51.3%) was the most common. Among the nineteen fungicide products evaluated to compare their efficacy against gray mold pathogen on the paprika fruit inoculated with fungal mycelia, the mixture of diethofencarb and carbendazim was the most effective followed by iprodione, boscalid, the mixture of iprodione and thiophanate-methyl, fludioxonil, polyoxin-B, fluazinam, the mixture of tebuconazole and tolyfluanid and procymidone; while in the assay methods inoculated with fungal spores, the mixture of tebuconazole and tolyfluanid was the most effective in controlling gray mold followed by boscalid, fludioxonil, the mixture of diethofencarb and carbendazim and the mixture of pyrimethanil and chlorothalonil.

Effects of Herbal Plant Mixture(Miracle®) Supplementation on the Productivities of Lactating Sows and Growth Performance and Hematological Characteristics of Piglets (생약제(Miracle® 첨가가 포유모돈의 생산성, 자돈의 성장 및 혈액성상 변화에 미치는 영향)

  • Min, B.J.;Kwon, O.S.;Hong, J.W.;Son, K.S.;Kim, In-Ho
    • Journal of Animal Science and Technology
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    • v.47 no.3
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    • pp.371-378
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    • 2005
  • This study was conducted to evaluate effects of dietary herbal extracts mixturetMiracle" included Angelicae Gigantis Radix, Rehmanniae Radix, Cnidii Rhizoma, Glycyrrhizae Radix, Schizandrae Fructus, Plantago asiatica and Dioscoreae Radix) on the productivities of lactating sowsand growth performance and hematological characteristics of piglets. Twenty seven sows (Yorkshire ${\times}$ Landrace ${\times}$ Duroc, 1 to 3 parities) were used in a 21 day old trial. Dietary treatments included 1) CON (control; basal diet), 2) HPMO.l (basal diet + herbal plant mixture 0.1 %) and 3) HPMO.2 (basal diet + herbal plant mixture 0.2 %). Backfat thickness losses from farrowing to weaning was decreased in HPM treatmentscompared with control(linear effect, P $\leq$ 0.003). ADFI was decreased in sows fed herbal plant mixture(linear effect, P < 0.05). Also, treatments of dietary herbal plant mixture reduced day of return to estrus compared with control(linear effect, P < 0.05). Energy digestibility in HPM treatments were higher than control(linear effect, P $\leq$ 0.05). In piglets, weight gain(P > 0.05) and survivability(P> 0.05) after weaning werenot affected by treatments. No statistical differences were found(P> 0.05) forhematological characteristics in piglets. In conclusion, dietary herbal plant mixture reduces backfat thickness losses and day of return to estrus and improves energy digestibility in lactating sows.

The Effects of Dietary Herbal Plant Mixture on Growth Performance, Nutrient Digestibility, Serological Changes and Carcass Characteristics in Finishing Pigs (비육돈에 있어서 생약제 혼합물의 급여가 성장율, 영양소 소화율, 혈청학적 변화 및 도체특성에 미치는 영향)

  • 권오석;김인호;김지훈;홍종욱;민병준;이원백;손경승
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.4 no.4
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    • pp.334-340
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    • 2003
  • This study was conducted to evaluate the effects of dietary herbal extracts mixture on the growth rate. carcass traits and serological changes in finishing pigs. For the Exp 1, eighty Duroc(Yorkshir(Landrace pigs(81.58$\pm$3.20kg average initial body weight) were used in a 45 day experiment. Dietary treatments included 1) NC(negative control; antibiotics-free diet), 2) PC(positive control; NC diet added 0.1% of chlortetracycline), 3) NCM(NC diet added 0.1% of herbal plant mixture) and 4) PCM(PC diet added 0.1% of herbal plant mixture). Through the entire experimental period, ADG of pigs fed NCM and PCM diets was greater(P<0.08) than that of pigs fed NC diet. There was interaction of ADG(P<0.01) in pigs fed NC diet with herbal plant mixture compared to pigs fed PC diet with herbal plant mixture. ADFI and G/F tended to increase in PC and NCM treatments. However, there were not significantly differences among the treatments. Total protein of serum was improved by supplementation of the herbal plant mixture in NC diet(P<0.04). For the Exp 2. one hundred Duroc(Yorkshir(Landrace pigs(77.36$\pm$2.01kg average initial body weight) were used in a 28 day experiment. Dietary treatments included 1) NC(negative control; antibiotics-free diet), 2) PC(positive control; NC diet added 0.1% of chlortetracycline), 3) PM0.1(NC diet added 0.1% of herbal plant mixture) and 4) PM0.2(NC diet added 0.2% of herbal plant mixture). Through the entire experimental period, ADG tended to increase in PC treatment. However, there was not significantly difference among the treatments. Carcass weight in NC was higher than other treatments(P<0.06). Backfat thickness was higher in pigs fed PC than other treatments. However, there was not significantly difference among the treatments. A grade appearances of carcass tended to increase in pigs fed PM(P<0.09). In conclusion, the results of the experiments suggest that pigs fed PM could be a beneficial growth performance and serogical immunity for finishing pigs.

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Effect of Growth Regulators and Antioxidant Mixture on the Anther Floating Cultures of Rice (벼의 약 부유배양에서 캘러스 유도 및 식물체 분화에 미치는 생장조절제와 항산화제의 영향)

  • 이승엽;이재길;권태오
    • Korean Journal of Plant Tissue Culture
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    • v.27 no.2
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    • pp.83-87
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    • 2000
  • To investigate the effect of growth regulators and antioxidant in anther floating cultures of rice, anthers were cultured in liquid media supplemented with different growth regulators, and the effect of antioxidant mixture : (Sigma Chemical Co.) on callus induction and plant regeneration were investigated. N6 medium with 1 mg/L 2,4-D and 1 mg/L kinetin was the best for rice anther floating cultures, which showed 48.5% of callus induction and 6.8% of green plant regeneration. The callus induction was not affected by antioxidant mixture in liquid medium, and antioxidant mixture (250 mg/L) was effective for the reduction of brownish callus and improvement of plant regeneration Antioxidant mixture showed better effectiveness when it was supplemented to both media for callus induction and plant regeneration.

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Molecular Analysis of Botrytis cinerea Causing Ginseng Grey Mold Resistant to Carbendazim and the Mixture of Carbendazin Plus Diethofencarb

  • Kim, Joo-Hyung;Min, Ji-Young;Bae, Young-Seok;Kim, Heung-Tae
    • The Plant Pathology Journal
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    • v.25 no.4
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    • pp.322-327
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    • 2009
  • A total of 23 isolates of Botrytis cinerea causing the grey mold were collected from infected ginseng in several fields of Korea. The sensitivity to carbendazim and the mixture of carbendazim plus diethofencarb was determined through a mycelial inhibition test on PDA amended with or without fungicides. B. cinerea isolates were classified as 3 phenotypes, which were the first phenotype resistant to both of carbendazim and the mixture ($Car^RMix^R$), the second one resistant to carbendazim and sensitive to the mixture ($Car^RMix^S$), and the last one sensitive to both of them ($Car^RMix^S$). Carbendazim resistance correlated with a single mutation $\beta$-tubulin gene of B. cinerea amplified with primer pair tubkjhL and tubkjhR causing a change of glutamate to alanine at amino acid position 198. Furthermore, the substitution of valine for glutamate led the resistance to carbendazim and the mixture at the same position of amino acid. PCR-restriction fragment length polymorphism (PCR-RFLP) analysis using the restriction endonuclease, Tsp451 and BstUI allowed differentiation of the PCR fragment of $\beta$-tubulin gene of $Car^SMix^S$ isolates from that of $Car^RMix^R$ and $Car^RMix^S$ isolates. This method will aid in a fast detection of resistance of carbendazim and the mixture of carbendazim plus diethofencarb in B. cinerea in ginseng field.

The Effects of Herbal Plant Mixture Supplementation on the Performance of Laying Hens under Heat Stress (고온 스트레스 환경내 산란계에 있어 생약제의 급여가 생산성에 미치는 영향)

  • 민병준;이원백;권오석;손경승;홍종욱;조진호;김인호
    • Korean Journal of Poultry Science
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    • v.31 no.1
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    • pp.9-15
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    • 2004
  • This study was conducted to evaluate the effects of dietary herbal plant mixture on the performance in laying hens under heat stress. One hundred ninety two 54-weeks-old ISA Brown commercial layers, were used in 56 d experimental assay. Dietary treatments included CON (control; basal diet), HPM0.05 (basal diet + 0.05% herbal plant mixture), HPM0.1 (basal diet + 0.1% herbal plant mixture), and HPM0.2 (basal diet + 0.2% herbal plant mixture). For overall period, the hens fed with HPM0.1 and HPM0.2 diets showed lower in the hen day egg production than the hens fed with CON diet(P<0.05). At the end of the experimental period, egg weight was heavier in HPM 0.1 treatment than in CON (P<0.05). There were no significant differences among the treatments in egg shell breaking strength, egg shell thickness, Haugh unit, and yolk color unit. Total cholesterol concentration of yolk tended to decrease as the level of herbal plant mixture in the diet increased. Total protein of blood was higher in the hens fed with herbal plant mixture than in the hens fed with CON diet (P<0.05). Albumin concentration of blood was increased in HPM0.05 and HPM0.1 treatments compared with CON(P<0.05). Red blood cell (RBC) and white blood cell (WBC) concentrations in serum were increased in HPM0.1 and HPM0.2 treatments compared with CON treatment (P<0.05). In conclusion, dietary herbal plant mixture in laying hens under heat stress adversely affected egg production but increased total protein, albumin, RBC and WBC in blood.

Sensitivity of Colletotrichum spp. Isolated from Grapes in Korea to Carbendazim and the Mixture of Carbendazim Plus Diethofencarb

  • Hwang, Sook-Yung;Kim, Hye-Ryoung;Kim, Joo-Hyung;Park, Jong-Han;Lee, Sang-Bum;Cheong, Seung-Ryong;Kim, Heung-Tae
    • The Plant Pathology Journal
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    • v.26 no.1
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    • pp.49-56
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    • 2010
  • Thirty-six isolates of Colletotrichum spp. were obtained from infected grapes in two different locations of Korea; 18 isolates from Cheonahn, where carbendazim (MBC) and the mixture of MBC and diethofencarb (NPC) had been applied to control grape ripe rot, and 18 isolates from Cheongju, where no fungicides had been used. Sequences analysis of the internal transcribed spacer (ITS) and the $\beta$-tubulin gene identified 34 of the 36 isolates as Colletotrichum gloeosporioides. The remaining two isolates from Cheongju were identified as C. acutatum. Of the 18 isolates from Cheonahn, 12 were resistant to both MBC and the mixture (MBC+NPC), and six were sensitive to them. All C. gloeosporioides isolates from Cheongju, but not the two C. acutatum isolates, were sensitive to these fungicides. Sequence analysis of the $\beta$-tubulin gene in all isolates revealed that C. gloeosporioides resistant to MBC and MBC+NPC had a tyrosine instead of phenylalanine at the amino acid position 200. The appearance of resistance to MBC and the mixture in C. gloeosporioides correlated with the history of fungicide application in Korea.

Effect of the Mixture of Two Plant Alkaloids Isolated from Corydalis longipes Against Balsam Powdery Mildew on Detached Leaves and Pea Powdery Mildew in Field

  • Gohain, Leena;Maurya, S.;Pandey, M.B.;Pandey, V.B.;Singh, U.P.
    • Mycobiology
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    • v.32 no.4
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    • pp.155-159
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    • 2004
  • N-Methylhydrasteine hydroxylactam and 1-methoxyberberine chloride, both alkaloids, extracted from Corydalis longipes have been assayed for their activities against two powdery mildews. The spore germination of Erysiphe cichoracearum on detached leaf of balsam(Impatiens balsaminia) following pre- and post-inoculation treatments by their mixture has shown high efficacy against the pathogen at 100, 200 and 300 ${\mu}g/ml$. The mixture was also effective at both pre- and post-inoculation treatments at 500, 1000, 1500 ${\mu}g/ml$ doses against E. pisi causing pea powdery mildew in pea(Pisum sativum) under field conditions. The significant efficacy of the mixture of two compounds against spore germination on detached leaves of balsam and also under field conditions in pea warrants its inclusion in trials against some other diseases under field conditions.