• Title/Summary/Keyword: number of leaves

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Chemical Constituents of Ranunculaceous Plants (모낭과식물의 성분(成分))

  • Chung, Dong-Kyu
    • Korean Journal of Pharmacognosy
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    • v.9 no.2
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    • pp.57-72
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    • 1978
  • The constituents of Ranunculaceae plants are summerized from more than one hundred of papers. Fifteen steroidal alkaloids, thirty two of terpenoids (diterpenes and triterpenes), fifty four isoquinoline alkaloids are recorded. Thirty three papaverines, eighteen berberines, and three hydrastines belong to isoquinoline group. Besides, of alkaloids a number of glycosides are also found. Adonis glycoside, famous cardiotonics, from Adonis and cyanogenin glycoside and calthoside D were identified from the leaves of Thalictrum aquilegifolium and Caltha silvestris. Anemonin, the irritating substance, found in Pulsatilla grandiz $W_{ENDER}$. Kaempf-erol and dihydrokaempferol were isolated and identified from the leaves of Clematis brachyura ^M_{AXIMOWICZ}$ by author in 1968.

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Effects of MH, FA, Flumetralin and Butralin Applications on Sucker Control of Flue-cured Tobacco (황색종 담배에서 MH, FA, Flumetralin 및 Butralin의 처리방법이 곁순억제에 미치는 영향)

  • 류명현;김용암
    • Journal of the Korean Society of Tobacco Science
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    • v.23 no.1
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    • pp.5-11
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    • 2001
  • Experiments were conducted to evaluated the sucker control efficiency of several suckercides and their combinations for flue-cured tobacco in Korea. In 1999, Flumetralin(Prime+, P+), Butralin(B), Fatty alcohol(FA, n-decanol 85%), pottasium salt of maleic hydrazide(MH), tank mix of MH with P+ (MH·P+), and another tank mix of MH with FA(MH·FA) were applied after topping, respectively, then sucker number and sucker dry weight were investigated on the 30th and 50th day from treatment. Sucker number and dry weight were significantly lowered by P+, B, FA and MH·P+ applications compared with those of MH and MH·FA for both investigated periods. A significant reduction in sucker number and dry weight was observed in P+, B, and MH·P+ applications. FA treatment was not so much effective in sucker control as P+. In 1999 and 2000, several suckercides and tank mixes of their combinations were applied first at button stage and second after topping, respectively, to compare the effects of sucker control on yield, price index and chemical components of cured leaves. Compared to the standard method of FA 30x at button stage followed by MH40x application after topping(FA 30x + MH 40x), sucker number and dry weight decreased by [FA 30x (or P+ 1%] or [FA 30x(or B 1.5%) + MH 60x·B 1.5%] treatments, even at reduced MH levels. But yield, price index and chemical components of cured leaves were not differed among treatments.

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Correlations among Agronomic Characters of Ginseng Plants (인삼의 각종 주요형질간의 상관관계)

  • Choi, K.T.;Ahn, T.S.;Shin, H.S.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.25 no.3
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    • pp.63-67
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    • 1980
  • This study was carried out to seek the visible marker and make it easy to select the individuals or lines which have excellent characters. Ginseng plants of one to five years were used for this study, and agronomic characters, such as stem diameter. stem length, leaf length, leaf width, petiole length. stem weight, leaf weight, number of leaves, number of leaflets, main root length, root length, root diameter and root weight were determined and correlations among them were estimated. Generally, agronomic characters, such as stem diameter, leaf length, leaf width, number of leaves, number of leaflets, leaf weight and stem weight had positive and highly significant correlations with root weight per plant, the character that has great influence on yield.

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The Hypernodulating nts Mutation Induces Jasmonate Synthetic Pathway in Soybean Leaves

  • Seo, Hak Soo;Li, Jinjie;Lee, Sun-Young;Yu, Jae-Woong;Kim, Kil-Hyun;Lee, Suk-Ha;Lee, In-Jung;Paek, Nam-Chon
    • Molecules and Cells
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    • v.24 no.2
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    • pp.185-193
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    • 2007
  • Symbiotic nitrogen fixation with nitrogen-fixing bacteria in the root nodules is a distinctly beneficial metabolic process in legume plants. Legumes control the nodule number and nodulation zone through a systemic negative regulatory system between shoot and root. Mutation in the soybean NTS gene encoding GmNARK, a CLAVATA1-like serine/threonine receptor-like kinase, causes excessive nodule development called hypernodulation. To examine the effect of nts mutation on the gene expression profile in the leaves, suppression subtractive hybridization was performed with the trifoliate leaves of nts mutant 'SS2-2' and the wild-type (WT) parent 'Sinpaldalkong2', and 75 EST clones that were highly expressed in the leaves of the SS2-2 mutant were identified. Interestingly, the expression of jasmonate (JA)-responsive genes such as vspA, vspB, and Lox2 were upregulated, whereas that of a salicylate-responsive gene PR1a was suppressed in the SS2-2 mutant. In addition, the level of JA was about two-fold higher in the leaves of the SS2-2 mutant than in those of the WT under natural growth conditions. Moreover, the JA-responsive gene expression persists in the leaves of SS2-2 mutant without rhizobia infection in the roots. Taken together, our results suggest that the nts mutation increases JA synthesis in mature leaves and consequently leads to constitutive expression of JA-responsive genes which is irrelevant to hypernodulation in the root.

A Study on Quality Characteristics of Dangmyon(starch vermicelli) added with Mulberry Leaves Powder (뽕잎분말을 첨가한 당면의 품질특성에 관한 연구)

  • Jeon, Seo-Young;Lee, Young-Sook;Rho, Jeong-Ok
    • Korean Journal of Human Ecology
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    • v.24 no.3
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    • pp.437-449
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    • 2015
  • The purpose of this study was to investigate the quality characteristics of Dangmyon(starch vermicelli) prepared with mulberry leaves powder. Mulberry leaves powder was added in ratios (w/w) of 0% (CON), 0.5% (MD1), 1.0% (MD2), 1.5% (MD3). and 2.0%(MD4), and then proximate compositions, physicochemical properties, RVA, SEM, texture and sensory evaluations of the Dangmyon were measured. MD1~MD4 samples showed higher contents of moisture, crude lipid, crude protein and crude ash as well as pH compared to control (p<0.001). In terms of color, lightness (L), yellowness (b), and redness (a) decreased as the mulberry leaves powder increased. The results of RVA properties analysis on all samples showed that control had the highest. With regard to the texture of Dangmyon samples, the scores of hardness, adhesiceness, gumminess, chewiness, resilience of CON was significantly higher than the samples MD1~MD4 (p<0.001), but the scores of springiness, cohesiveness was not significantly among samples. The result of observation on the cross section of Dangmyon added with mulberry leaves powder showed that number, size of cavity more increase compared to the control. In sensory evaluation, the scores of appearance, flavor, taste and overall preference for MD3 were significantly higher than the samples (CON, MD1, MD2, and MD4). From the findings, this study suggests that 1.5% addition of mulberry leaves powder was effective for preparation of Dangmyon in the aspects of the consumer acceptability.

Effects of Different Sanitizers on the Quality of 'Tah Tasai' Chinese Cabbage (Brassica campestris var. narinosa) Baby Leaves (살균소독제가 다채 어린잎채소(Brassica campestris var. narinosa)의 수확 후 품질에 미치는 영향)

  • Chandra, Dulal;Kim, Ji-Gang
    • Food Science and Preservation
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    • v.18 no.4
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    • pp.429-435
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    • 2011
  • The demand of packaged baby leaves has been increased for its convenient use as fresh-cut produce. This investigation was aimed to explore the effects of different sanitizers on the quality parameters of 'Tah Tasai' Chinese cabbage (Brassica campestris var. narinosa) baby leaves. Thirteen days old baby leaves were harvested and washed in tap water (TW), 100 ppm chlorine solution (Cl), 2 ppm ozonated water ($O_3$), 15 ppm chlorine dioxide solution ($ClO_2$) and washing with 0.2% citric acid solution followed by 50% ethanol spray (CA+Et). The samples were then packaged in 50 ${\mu}m$ polyethylene bags and stored at $5^{\circ}C$ for 10 days. Off-odor of packaged baby leaves was not detected during storage. There was no significant difference in color parameters among the treatments. Samples treated with $O_3$ showed substantially higher electrolyte leakage throughout the storage. This treatment also rendered a higher accumulation of $CO_2$ in the packages. Samples treated with Cl and CA+Et maintained good overall visual quality with higher scores compared to that of $O_3$ and $ClO_2$. Although Cl treatment showed lower number of total aerobic count at the beginning of storage, citric acid in combination with ethanol treatment was more effective until the end of storage. The combined treatment also showed comparatively lower coliform plate count. This result indicates that citric acid wash followed by ethanol spray could be an alternative to chlorine for environment friendly sanitization of baby leaves.

Physical Properties of Jujube(Zizyphus jujuba Miller) for Mechanical Harvesting (기계수확을 위한 대추의 물리적 특성 분석)

  • Huh, Yun-Kun;Lee, Sang-Woo
    • Korean Journal of Agricultural Science
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    • v.31 no.2
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    • pp.115-122
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    • 2004
  • Physical and mechanical properties of fruits of jujube (Zizyphus jujuba Miller), leaves, secondary branches, and leafy stems were measured and analyzed. The physical dimensions of the fruits were measured and the detachment force of the fruit and leafy stems was measured. The detachment force of the jujube fruits increased and the force-to-weight ratio of the jujube fruits decreased as the weight of the jujube fruit increased. The weight of the leafy stems, number of leaves attached to the leafy stems, length of the leafy stems, diameter of the stem side of the leafy stems, diameter of the leafy stem end was average of 0.7g, 6.6ea, 12.2cm, 4.5mm, and 2.7mm, respectively. The major and minor axis of the jujube leaves, area of leaves, weight of the leaves, and detachment force of the leaves was average of 5.7cm, 3.3cm, $12.98cm^2$, 0.20g, and 4.39N, respectively. The terminal velocity of the jujube fruits increased as the weight of the fruits increased. The terminal velocity of the leafy stems, however, did not show a relationship with the weight of the leafy stems and the number of leaves attached to the leafy stem. The terminal velocity, however, slightly increased as the length of the leafy stems increased.

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Effect of Fertilizer Level of Organic Matter on Growth and Yield in Perilla (유기물의 시비량 차이가 잎들깨의 생장특성 및 수량 생산효과)

  • 하상영
    • Journal of Life Science
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    • v.9 no.4
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    • pp.481-488
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    • 1999
  • This study was conducted to survey some characteristics in growth of perilla by fertilization level organic matter. Corn stalk, acorn and chestnut were used as organic fertilizer in this study. In the height of perilla, chestnut fertilizer with 880kg/10a that R2 is 0.9996 showed the height level, and followed by acorn and corn stalk in order. Number of the harvested leaves was the highest in acorn among the three organic fertilizer by chestnut and corn stalk in order. However, number of the harvested leaves continuously was the highest in chestnut. Weight of a leaf was more effective at three kinds of organic fertilizer than control. There were no difference in the rate of dried leaf weight according to kinds of organic fertilizer. On the other hand, the rate of dried leaf weight by growth period was different. It was found that the rate of dried leaf in 30days or 110days. Diameter of perilla stem at 30cm above the ground according to kinds and fertilizer level of organic fertilizer was surveyed. However, the difference was not detected in this study.

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The Analysis of Inheritance of Quantitative characters with Oriental Tobacco Varieties (Nicotiana tabacum L.) in Diallel Cross. II. Gene Distribution and Analysis of Variance for each character in $F_1$ Generation. (Orient종 잎담배의 이면교잡에 의한 양적 형질의 유전연구 II. 분산분석과 유전자분포 상태)

  • 정석훈;황주광;손세호
    • Journal of the Korean Society of Tobacco Science
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    • v.4 no.1
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    • pp.15-20
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    • 1982
  • This experiment was carried out to investigate the degrees and directions of dominance, and gene distributions by analysing diallel crosses of oriental varieties. The analysis of Wr-Vr indicated non-allelic gene interaction for days to (lowering and number of leaves. Five Plant characteristics showed different degrees of dominance : incomplete dominance for Plant height and leaf shape, over dominance for , wield and sugar, and complete dominance for nicotine. It was shown that additive genetic variance was predominant for plant height, leaf shape, and total sugar. More number of dominant genes were present in Kavala and canthi for Plant height; Basma, Samsun and Izmir for leaf shape ; and Basma and Samsun (or nicotine. Their directions of dominance were tall height, narrow leaves, and low nicotine, respectively.

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Experimental Basic Study on Growth Characteristics of Plant with Various Liquids (액체 종류에 따른 식물의 성장 특성 기초 실험)

  • Park, Jeong-Yeon;Kim, Jeongbae
    • Journal of Institute of Convergence Technology
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    • v.4 no.1
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    • pp.1-4
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    • 2014
  • This study was experimentally performed to show the growth characteristics of one specified plant with various liquids, which can be purchased easily. To do that, this study measured the number of leaves attached to the plant sample and the height of liquids everyday during almost 15 days on summer season in the laboratory room. From the experiments, we revealed that the remained number of leaves can be related with the liquid height.