• 한국작물학회지
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• 제46권2호
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• pp.145-149
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• 2001

This study was performed to evaluate the growth and nodulation characters of hypernodulating soy-bean mutant, SS2-2, and to know the growth and yield performance of the mutant in infertile soil. Soil fertility was adjusted by mixing the different ratios of soil components including clay, river sand, and horticultural bed, which resulted in fertile and infertile soil. Dry weight, nitrogen concentration, and leaf nitrate reductase of each plant were measured around V6 stage (47 days after planting) and around R3 stage (82 days after planting). There were significant effects of soil fertility and soybean genotype on the total dry weights including root, nodule, stem, leaf, and pod dry weight at V6 and R3 stages. Total dry weight of hypernodulating mutant, SS2-2, was clearly less than that of its wild type, Sinpaldalkong 2. However, nodule development on the roots of SS2-2 was much greater than that of Sinpaldalkong 2, regardless of soil fertility. Though SS2-2 was smaller in plant size than Sinpaldalkong 2, genotypic difference in total nitrogen content was not significant at both V6 and R3 stages because SS2-2 fixed more nitrogen biologically than its wild type in the root nodule. The SS2-2 mutant showed lower plant yield in both infertile and fertile soil. The SS2-2 contained more crude seed protein than Sinpaldalkong 2, and was characterized with reduced top and root growth.

• Nutrition Research and Practice
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• 제1권4호
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• pp.260-265
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• 2007

Preservation methods on the physiological and brewing technical characters in bottom and top brewing yeast strains were investigated. The preserved yeasts were reactivated after 24 months storage and grown up to stationary phase. The samples of filter paper storage indicated a higher cell growth and viability during propagation than those of nitrogen and lyophilization storage independent on propagation temperature. In addition, the filter paper storage demonstrated a faster absorption of free amino nitrogen and a highest level of higher aliphatic alcohols production during propagation than other preservation methods, which can be attributed to intensive cell growth during propagation. Moreover, the filter paper storage showed a faster accumulation for glycogen and trehalose during propagation, whereas, in particular, lyophilization storage noted a longer adaptation time regarding synthesis of glycogen and trehalose with delayed cell growth. In beer analysis, the filter paper storage formed an increased higher aliphatic alcohols than control. In conclusion, the preservation of filter paper affected positively on yeast growth, viability and beer quality independent on propagation temperature. In addition, in this study, it was obtained that the HICF and Helm-test can be involved as rapid methods for determination of flocculation capacity.

• Journal of Ginseng Research
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• 제5권2호
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• pp.92-98
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• 1981

This experiment was carried out to inverstigate the characteristics of growth of ginseng Plant on field conditions as affected by seedling weight. Weight of seedling ranged from 0.4 to 1.8g were divided into seven classes at interval of 0.2g. The heavy seedlings showed superiority in stem length, stem diameter, leaf area, number of palmate leaf and leaflets and root weight in 2-,3-, and 4-age as compared to light ones. The heavy seedlings also showed superiority in the ratio of inflorescence appearance in 2-age and seed product in 4-age as compared to light ones, but there were no significant difference in the ratio of missing-plant and the cracking. of root. The differences of growth in field condition as affected by seedling weight were diminished as the age progressed, and the annual growth rates of root of light seedling were high in older plant.

• Mycobiology
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• 제38권4호
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• pp.274-281
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• 2010

Cordyceps cardinalis was reported in Japan and the USA in 2004, and its fruiting bodies have recently been cultured in Korea. Herbarium specimens preserved at the Cordyceps Research Institute, Mushtech, Korea were revised and identified as C. cardinalis, based on morphological characters and conidial structures. Most of the C. cardinalis specimens were collected from Mt. Halla in Jeju-do. The effects of various nutritional sources and environmental conditions such as temperature and pH on mycelial growth of C. cardinalis were studied. Oatmeal agar, Martin's peptone dextrose agar, and Schizophyllum (mushroom) genetics complete medium plus yeast extract resulted in the best mycelial growth. Among carbon sources, cereals, and nitrogen sources, maltose, oatmeal, and peptone resulted in the best mycelial growth respectively. Mineral salts helped to increase growth rate but only resulted in thin mycelial density, similar to water agar. A temperature of $25^{\circ}C$ and a pH of 7 resulted in the highest mycelial growth. Based on these results, a Cordyceps cardinalis composite medium (CCM) was formulated with 1% maltose, 2% oatmeal, 1% peptone, and 2% agar. Use of the CCM resulted in slightly better mycelial growth than that of other commonly used agar media. Only organic nitrogen sources imparted a reddish pigmentation to the agar media, but this character diminished after several subcultures. A 7 day culture duration resulted in the best mycelial growth.

• 한국산림과학회지
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• 제98권2호
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• pp.170-177
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• 2009

There are remarkable differences in growth and morphological characters of roots between mountain and field cultivated Panax ginseng. Growth of root in mountain cultivated ginseng was much slower than that of field cultivated ginseng. However, the factor affecting the retarded growth in mountain ginseng was not known. Soil analysis revealed that phosphorus (P) content of mountain soil was exceptionally low at least ten-fold lower compared to that of field soil. Thus, we suggest that low availability of P in mountain soil may be one of the limiting factors for growth of ginseng in mountain soil environment. We had monitored the growth of ginseng plants after one and three years of phosphate fertilizer application. Three kinds of phosphate fertilizers: fused magnesium phosphate, fused superphosphate, and single superphosphate were applied to mountain soil. Application of phosphate fertilizers increased the fresh-, dry weight, and diameter of ginseng roots and resulted in increased P accumulation in roots. These results demonstrate that slow growth of ginseng in mountain soil environment might be attributed to the low P content in mountain soil. Thus, analysis of P amount in mountain soil will be a good indicator for the selection of suitable site the ginseng cultivation in forest.

• 한국약용작물학회지
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• 제12권3호
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• pp.226-230
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• 2004

재배 생력용으로 많이 이용되고 있는 멀칭 방법이 삽주의 생육에 미치는 효과를 구명하여 최적 멀칭방법을 확립하고자 무멀칭, 볏짚, 투명비닐, 흑색비닐, 이들 비닐과 왕겨를 혼용한 멀칭이 삽주의 어린싹, 초기 및 후기 생장과 수량에 미치는 영향을 조사하였던 바 그 결과를 요약하면 다음과 같다. 1. 삽주의 어린싹 무게는 투명 비닐을 이용한 멀칭에서 가장 많았던 반면, 어린싹과 관련된 형질중에서는 엽수, 어린싹의 길이는 볏짚을 이용한 멀칭에서 가장 작았다. 2. 생장초기에는 볏짚을 이용한 멀칭시 엽수, 근수, 경수, 엽폭, 지상부 및 근경의 생체중이 가장 적었던 반면, 왕겨와 흑색비닐 혼합멀칭시 뿌리 관련 형질인 근수, 근경중 및 근중이 가장 많았다. 3. 생장후기에는 지온이 낮았던 생장초기의 멀칭효과가 고온기를 경과하면서 그 효과가 사라져 생장 및 형태적 형질에서는 멀칭처리간 차이가 거의 없었다. 4. 단위면적당 수량과 상품 수량은 볏짚 단독멀칭과 왕겨와 흑색비닐의 혼합멀칭 에서 가장 높았다.

• 한국어류학회지
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• 제13권4호
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• pp.237-247
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• 2001

강원도 삼척시 호산리 호산천에서 채집된 꾹저구, 검정꾹저구, 무늬꾹저구 3종의 연령과 성장에 관하여 조사하였다. 체장 빈도 분포 조사에 의한 성별 성장조사에서 꾹저구의 당년생 수컷이 암컷보다 컸던 경우를 제외하고는 차이가 없었으나, 종간(種間)비교에서는 차이를 나타내었다. 즉, 꾹저구는 체장 45 mm 미만 집단이 당년생, 45~60 mm 집단이 1년생, 체장 60~80 mm 집단은 2년생, 80 mm 이상 집단은 3년생으로 추정되며 최대 체장은 105.0 mm였다. 검정꾹저구는 체장 55 mm 미만 집단이 당년생, 55~65 mm 집단은 1년생, 65~85 mm 집단은 2년생, 85 mm 이상 집단은 3년생으로 추정되며 최대 체장은 105.3 mm였다. 무늬꾹저구는 체장 40 mm 미만 집단이 당년생, 40~55 mm 집단은 1년생, 체장 55~75 mm 집단은 2년생, 체장 75 mm 이상은 3년생으로 추정되며 최대 체장은 85 mm를 넘지 않았다. 본 조사에서 만 4년생 이상되는 개체는 채집되지 않았고 암수간에 성장은 비슷하였다. 3종(種) 중 검정꾹저구가 모든 연령에서 다른 2종보다 성장이 약 5~10 mm 더 빨랐던 반면, 무늬꾹저구는 가장 느린 성장을 나타내었다 (p<0.0001). 체장의 성장에 따른 몸 부위의 형태적 변화를 공분산분석으로 비교검토해 본 결과, 종간(種間) 차이가 인정된 형질은 체고, 두장, 미병고, 상악장, 배지느러미의 길이였다. 즉, 꾹저구는 두장과 배지느러 길이에서 연령이 증가할수록 가장 빠른 성장을 나타내었고 검정꾹저구는 체고, 미병고, 상악장의 형질에서 가장 빠른 성장을 한 반면, 무늬꾹저구는 5개의 형질 모두 가장 느린 성장을 하였다.

• 한국융합학회논문지
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• 제5권2호
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• pp.25-32
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• 2014

Indian economy growth changed due Indian business operational approach with convergent technologies. The current economy growth supported by Information Technology Development and Information Technology Enabled Service. As part of the Information technology enabled upcoming Knowledge processing outsourcing provide huge opportunities to develop Indian business with our human resources. The KPO business sector basis and frame work can be achieve through Development Dynamic initiatives. This paper discuss about the basis of KPO and Dynamic Development Initiative frame work strategic compact components and its characters.

• Journal of Ginseng Research
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• 제20권1호
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• pp.78-82
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• 1996

In order to clarify effect of transplanting angle of seedling on shape and growth of ginseng root, ginseng of seedlings were transplanted with $60^{\circ}$ and $90^{\circ}$ respectively, and the root characters of 2-, 4- and 6-year-old ginseng were investigated. The length of main root with 45$^{\circ}$was above 7 cm (standard) but that of $60^{\circ}$ and $60^{\circ}$ was below 7 cm (standard). Number of good lateral root was above 2.3 ea for $45^{\circ}$, 0~$30^{\circ}$, but below 2.3 ea per plant for 60~$90^{\circ}$ respectively. Root fresh weight with $0^{\circ}$, $30^{\circ}$, $45^{\circ}$ was heavier than that with $60^{\circ}$ and $90^{\circ}$. Root disease infection rate was highest with $0^{\circ}$. There were, no significant difference in stem length, stem diameter, leaf area, comber of palmate leaves and leaflets per plant, ratio of missing plant, root diameter in 2-, 4- and 6-year-old ginseng.

• 한국작물학회지
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• 제35권6호
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• pp.548-558
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• 1990

Physiology and genetics of early maturity in cereals are the subject of practical as well as scientific interest for agronomist and plant breeders, Thorough understanding of the true nature of such a complex character requires physiological and genetical knowledge about the internal factors, which are closely bound up with and react to some particular external or environmental factors. From the practical point of view. experiments should be conducted under controlled conditions. especially the day length and temperature, so that the genotypic differences pertaining to these factors may be discerned. Takahashi and Yasuda (1958, 1970) maintained that at least three physiological factors were responsible for determining earliness in barley. namely. (1) spring and winter habit of growth or vernalization requirement, (2) ogitioeruiduc response or sensitivity to short-day, and (3) earliness factor in a narrow sense or minimal vegetative growth. The same situations were true in common wheat also (Yasuda and Shimoyama, 1965), In this report. physiology and genetics of internal factors and their relations to the time of heading in the field will be presented with some problems concerning differences in mechanism of early maturity between barley and wheat.