• Title/Summary/Keyword: Growth characters

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A Study on the Legal System of SI Contract (SI 계약의 법적 성격에 대한 연구)

  • Kye, Kyoung-Moon
    • Journal of Information Technology Services
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    • v.2 no.2
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    • pp.31-38
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    • 2003
  • The rapid growth of Korean SI (System Integration) industries have established the largest marketplaces in Korea. Due to the characteristics and importance of SI industry, SI contract between developer and outsourcer is very much important. SI contract have the specific legal characters of undertaking, trust, mandate and etc. However, this paper attempts to establish the particular legal system of SI contract.

Antagonistic and growth promotion potential of endophytic bacteria of mulberry (Morus spp.)

  • Pratheesh Kumar, Punathil Meethal;Ramesh, Sushma;Thipeswamy, Thipperudraiah;Sivaprasad, Venkadara
    • International Journal of Industrial Entomology and Biomaterials
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    • v.31 no.2
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    • pp.107-114
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    • 2015
  • Endophytes provide multifarious benefits such as promotion of plant growth and yield, suppression of phyto-pathogens, phosphate solubilising and fixation nitrogen. A study has been carried out to explore growth promotion and antifungal activities of endophytes of mulberry (Morus spp.). Endophytic bacteria were isolated from mulberry plants and studied their cultural, morphological characters, growth promotion as well as their antifungal activity against Rhizoctonia bataticola and Fusarium oxysporum , two mulberry root rot associated pathogens. Except two isolates, all bacteria were colourless and the colony size of eight isolates was small. The margin of five isolates was irregular and the consistency of three isolates was creamy, six isolates was slimy and one was mucoid. Texture of seven isolates was convex and others were flat. Eight isolates were gram positive and the rest Gram negative, five were cocci and others were bacilli (rod shaped). Four isolates were motile and all were catalase positive and only three isolates were oxidase positive. Spore staining was positive only for two isolates. The growth promotion study showed that there was significant difference in root length and seedling length. The antagonistic effect of the bacterial isolates was tested against R. bataticola showed significant (p <0.05) influence of the bacteria, days after inoculation and their interaction on the inhibition of fungal growth. The isolate En-7 completely inhibited the fungus followed by En-5 (66.67%). The bacterial isolates significantly (p <0.05) inhibited growth of F. oxysporum in PDA. The mean inhibition was higher (70.45%) in case of En-7 followed by En-8 (68.65%) and En-10 (66.44%). The study reveals that some endophytic bacteria associated with mulberry have growth promotion and antifungal activity and could be explored for promotion of mulberry growth and managing root rot disease.

Plant Growth Promoting Activities of Some Rhizosphere Bacteria and their Effect on Brassica rapa Growth

  • Hussein, Khalid A.;Jung, Yeong Sang;Joo, Jin Ho
    • Korean Journal of Soil Science and Fertilizer
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    • v.47 no.3
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    • pp.141-146
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    • 2014
  • The necessity to develop economical and eco-friendly technologies is steadily increasing. Plant growth promoting rhizomicrobial strains PGPR are a group of microorganisms that actively colonize plant roots and increase plant growth and yield. Pot experiments were used to investigate the potential of some rhizobacterial strains to enhance the Brassica rapa growth. Microbial strains were successfully isolated from the rhizosphere of Panax ginseng and characterized based on its morphological and plant growth promotion characters. Surface disinfected seeds of Wisconsin Fast B. rapa were inoculated with the selected PGPR microorganisms. The different pots treatments were inoculated by its corresponding PGPR ($10^7cfu\;mL^{-1}$) and incubated in the growth chamber at $25^{\circ}C$ and 65% RH, the light period was adjusted to 24 hours (day). NPK chemical fertilizer and trade product (EMRO, USA) of effective microorganisms as well as un-inoculated control were used for comparison. Plants harvested in 40 days were found to have significant increase in leaf chlorophyll units and plant height and also in dry weight of root and shoot in the inoculated seedlings. Root and shoot length and also leaf surface area significantly were increased by bacterial inoculation in sterile soil. The study suggests that Rhodobacter capsulatus and Azotobacter chroococcum are beneficial for B. rapa growth as they enhance growth and induced IAA production and phosphorus solubilization. This study presents some rhizomicrobial strains that significantly promoted growth of Wisconsin Fast Plant B. rapa in pot experiment under different soil conditions.

Growth and Foliar Constituents of Mulberry ($M_5$) Cultivated under Organic Based Nutrient Management

  • Rashmi, Krishnegowda;Shankar, Maruvanahalli Ankegowda;Shashidhar, Kaluvarahalli Ramanna;Narayanaswamy, Talagavara Kempaiah
    • International Journal of Industrial Entomology and Biomaterials
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    • v.19 no.1
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    • pp.165-169
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    • 2009
  • A field experiment to evaluate the effect of application of different organic manures and inorganic fertilizers on growth, yield and quality of leaf was studied during 2004-05 has showed that, the application of 10 kg each of Azospirillum brasilense and Aspergillus awamori+20% each of recommended N through compost+green manure (Glyricidia maculata)+castor cake+vermicompost+Urea and remaining P and K through fertilizers ($T_{11}$) has recorded significantly higher leaf yield (250 g/ plant and 34.70 tonnes/ha/yr, respectively) with improvement in growth characters as compared to control. Leaf quality status was also improved in terms of N (3.19%), P (1.97%), K (1.28%), total soluble protein (8.39 mg/ml), total soluble sugars (14.40 mg/ml), secondary nutrients viz., Ca (3.00%), Mg (0.60%), S (0.35%) and micronutrients viz., Cu (0.410 ppm), Mn (0.454 ppm) and Zn (0.112 ppm) contents. The mulberry grown with 20 tonnes of compost+300:120:120 Kg of NPK/ha/year through fertilizer ranked second for growth and foliar constituents.