• 농업과학연구
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• 제40권4호
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• pp.277-280
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• 2013

This study was carried out to compare the productivity and to evaluate the stability for the introduced sweet corn hybrids; Sunnychocolat, 7168Y and Gammiok as a check hybrids. The used materials were planted at Anseong and Daejeon by randomized block design with 3 replications on 21 April, 2013. In productivity of the used hybrid corns, plant and ear height showed comparatively stable as a 183.5 cm to 226.5 cm and 45.8 cm to 80.9 cm, respectively. In yield per 10a, number of ears was higher in Sunnychocolat than check, while Gammiok was very poor in kernel setting length and marketability. Beside, stability of the used hybrids also showed highly in the introduced hybrids than check in the ratio of ear to plant height, tolerance to environmental stress and low lodging. As results above, we thought that these introduced hybrids will be well adapted in domestic cultivation and growth habit as like other hybrid corns.

• 농업과학연구
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• 제40권2호
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• pp.87-91
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• 2013

The major characteristics of the developed corn hybrids were compared at each different planting time; 1st time(April 28) and 2nd time(August 20), respectively. Among traits surveyed, stem height showed highly at 1st time than 2nd, while ear height, stem diameter and ear length were similar at two times. Sugar content of the used hybrids showed highly at 2nd planting time than 1st. Pericarp thickness was also high at 2nd planting time. Especially, among hybrids CNU99 was the highest in stem height and ear length, CNU11 and CNU56 were high in sugar content, and CNU51 and CNU124 were thiner than other hybrids in pericarp thickness. Accordingly, these hybrids will be planted and recognized in 2nd yield trial for superior corn hybrid selection.

• 미생물학회지
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• 제29권1호
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• pp.8-15
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• 1991

Interspecific hybrids between the ASpergillus spp., A. awamori, A. usamii and A. oryzae, were obtained by nuclear transfer technique. Nuclei isolated from an auxotrophic mutant strain were transferred into the protoplasts of a recipient strain of different species. The frequency of interspecific hybrid formation by nuclear transfer was $2*10^{-5}$ $-7*10^{-4}$ In contrast, no interspecific hybrid was isolated by protoplast fusion. Among the hybrids tested, 10 strains showed increased activity of some or all components of cellulases, xylanases and amylase up to more than two times. Isozyme pattern of the hybrids were analyzed by polyacrylamide gel electrophoresis and isoelectric focusing followed by activity staining, which showed that some of the hybrids have isozyme patterns unidentical to either of the two parents. By measuring the DNA contents and the sizes ofthe conidia, the karyotypes of the hybrids were estimated to be aneuploid near to haploid, diploid or triploid. It was concluded that the unclear transfer technique is much more efficient in the formation of interspecific hybrids than protoplast fusion and is very useful for the improvement of Aspergillus strains.

• 식물병연구
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• 제24권4호
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• pp.265-275
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• 2018

Cashew (Anacardium occidentale L.) is an export crop and source of income in Tanzania. However, its productivity is challenged by insect pests and diseases. Cashew Leaf and Nut Blight Disease (CLNBD) caused by Cryptosporipsis spp. has been cited as one of the most devastating diseases in Tanzania. Studies were conducted to investigate incidences and severities of CLNBD on cashew in farmers' fields and elite cashew hybrids developed in 1996 and 1998 in eastern and southern zones of Tanzania. Furthermore, a screen house experiment was conducted to screen these hybrids against CLNBD at Naliendele Agricultural Research Institute (NARI), Mtwara, Tanzania. The results indicated significant differences (P<0.001) in CLNBD incidences and severities in cashew in farmers' fields across Bagamoyo, Nachingwea and Mtwara districts. Further, there were significant differences (P<0.001) among hybrids in CLNBD severities in the screen house experiment. In ranking the elite cashew hybrids, 38 were tolerant and 14 were susceptible to CLNBD. This observation suggests that elite cashew hybrids developed in 1996 and 1998 are more tolerant to CLNBD compared to cashew found in farmers' fields. These findings strongly suggest that the elite cashew hybrids can be recommended for commercial farming in Tanzania.

• Bulletin of the Korean Chemical Society
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• 제31권3호
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• pp.720-723
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• 2010

• Bulletin of the Korean Chemical Society
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• 제26권5호
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• pp.815-818
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• 2005

• 한국고분자학회지:고분자과학과기술
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• 제16권1호
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• pp.48-56
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• 2005

• 한국고분자학회지:고분자과학과기술
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• 제18권1호
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• pp.8-19
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• 2007

• 한국초지조사료학회지
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• 제29권3호
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• pp.179-186
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• 2009

본 시험은 최근 육성된 국내 사일리지용 옥수수 품종들의 파종기에 따른 수량 및 사료가치를 분석하고자 수행하였다. 국내산 옥수수의 파종일에서 출사일까지의 출사일수는 수원169호와 P3394가 62일로 가장 짧았으며 강다옥이 68일로 가장 길었다. 청안옥이 다른 품종보다 도복에 더 강하였으며 후기녹체성은 광평옥, 강다옥이 다른 품종보다 더 우수하였다. 암이삭 비율은 강다옥을 제외한 품종들은 수입종인 DK697과 P3394와 비슷하였지만 대체로 낮은 것으로 나타났다. 5월 3일과 5월 21일 파종기의 암이삭 비율은 46%, 45%로 비슷하였으나 6월 11일 파종기에는 41%로 낮았다. 생초수량은 강다옥이 가장 높았으며 그 외 품종들은 비슷한 생초수량을 나타내었다. 건물수량은 청안옥을 제외한 다른 국산 품종들은 DK697과 P3394와 비교해 볼 때 비슷하였다. 가소화영양소총량(TDN) 수량은 품종간 차이는 없었다. 5월 3일과 5월 21일 파종기의 생초수량, 건물수량 및 가소화영양소총량 등은 비슷하였으나 6월 11일 파종기에는 생초수량, 건물수량 및 가소화영양소총량 등이 감소하였다. ADF는 품종간의 차이는 없었으며 범위는 $44.2{\sim}46.2%$였다. 파종시기가 늦어짐에 따라 함량은 증가하는 경향이었지만 유의한 차이는 없었다. NDF는 품종간의 차이는 없었으며 범위는 $58.1{\sim}59.9%$였다. 파종시기가 늦어짐에 따라 ADF와는 반대로 감소하는 경향이었지만 유의한 차이는 없었다. 가소화건물(DDM)은 품종간의 차이는 없었으며 범위는 $52.9{\sim}54.5%$였다. 파종시기가 늦어짐에 따라 함량은 감소하는 경향이었지만 유의한 차이는 없었다. 건물섭취량(DMI)은 $2.0{\sim}2.1%$로 품종간의 차이는 없었으며 또한 파종기간 차이도 없었다. RFV는 P3394가 가장 낮았으며 이를 제외한 다른 품종들은 $84.1{\sim}85.0$로 유의한 차이는 없었다. 이상의 시험결과를 볼 때 광평옥 등 국내 육성 사일리지용 옥수수 품종은 생산성과 사료가치 면에서 수입품종과 비슷하거나 우수하였다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.313-313
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• 2013

For high-performance TFT (Thin film transistor), poly-crystalline semiconductor thin film with low resistivity and high hall carrier mobility is necessary. But, conventional SPC (Solid phase crystallization) process has disadvantages in fabrication such as long annealing time in high temperature or using very expensive Excimer laser. On the contrary, MIC (Metal-induced crystallization) process enables semiconductor thin film crystallization at lower temperature in short annealing time. But, it has been known that the poly-crystalline semiconductor thin film fabricated by MIC methods, has low hall mobility due to the residual metals after crystallization process. In this study, Ni metal was shallow implanted using PIII&D (Plasma Immersion Ion Implantation & Deposition) technique instead of depositing Ni layer to reduce the Ni contamination after annealing. In addition, the effect of external magnetic field during annealing was studied to enhance the amorphous silicon thin film crystallization process. Various thin film analytical techniques such as XRD (X-Ray Diffraction), Raman spectroscopy, and XPS (X-ray Photoelectron Spectroscopy), Hall mobility measurement system were used to investigate the structure and composition of silicon thin film samples.