• The Korea Swine Journal
• /
• v.18 no.6 s.202
• /
• pp.139-141
• /
• 1996

한국 축산업 발전을 위하여 축산물 자유화를 눈앞에 두고 농수산부에서는 국민건강 안전과 소비자들의 기호에 맞는 고급육 생산을 위하여 육류에 항생제 잔류물 없애기와 각종 세균수 줄이기에 앞다투어 노력하고 실행할 방침을 제시해 놓았고 그렇게 되도록 전국 양축가와 도축장 및 육가공육류 해체작업장이며 유통업무에 종사한 도소매상인들에 최고의 기술과 고뇌에 짜낸 결실을 기대하고 있던차 모든 과제의 원인제공인 가축질병박멸대책을 위해 여러 학계교수, 수의학전문의, 생산자단체, 축산업에 일생을 맡겨 분투해온 분들로 위원회를 구성하여 가축질병박멸대책안을 만들어 수차례의 협의끝에 그런대로의 최선과 최대의 안이 나와 곧 발표단계며 곧바로 시행에 들어갈 것이다. 한편은 걱정도 있다. 시행하다보면 다시 손질해야할 점도 돌출될 것이며 전국 양축가들이 값비싼 사료로 가축에게 100%의 결실이 있게 된다면 얼마나 좋겠는가? 좋은 결실을 위한 노력이니 좋은 열매가 하루속히 이루어질 것으로 믿는다.

• 한국양묘협회지
• /
• s.9
• /
• pp.12-15
• /
• 1981

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.1 no.1
• /
• pp.36-41
• /
• 1963

10 of Korean domestic recommended varieties(all of them are determinate type) and 10 of introduced varieties from U.S.A.(All of them are indeterminate type) are grown in replicated field in order to clarify the varietal differences in the days from planting to blooming to ripening. The results are summarized as follows; 1. Domestic varieties showed remarkable shortday sensibility for the days from planting to blooming. The difference in sensibility between domestic and introduced was significant while within the domestic group the differences were not significant. 2. The days from planting to blooming were linearly shortened in accordance with the delayed planting from the late April through the late June. 3. Annual variation in days from planting to blooming was not noticeable in the domestic varieties while the introduced ones showed remarkably. 4. The days from blooming to ripening were significantly shortened for the introduced varieties but not significantly for the domestic varieties accordingly with the delayed planting. The mean shortest days of domestic varieties were longer than the mean shortest days of introduced varieties. 5. The days from planting to blooming was shortest when a variety was grown during early August through middle September (with 12.5~13.5 hrs day length and 22~$27^{\circ}C$ temperature), and the days from blooming to ripening were also shortest when a variety was matured within same duration. These were true for the varieties of both groups.

• Korean Journal of Environment and Ecology
• /
• v.25 no.4
• /
• pp.490-497
• /
• 2011

This study was carried out to identify environmental factor to influence fruiting of Vicia chosenensis populations distributed in Hongcheon-gun region, Korea. The populations was dominated by Quercus mongolica in the tree layer, and Lindera obtusiloba and Lespedeza maximowiczii in the shrub layer. Syneilesis palmata(21%) was abundant around reproductive state points and vegetative state points, and Artemisia stolonifera(13~18%) and Spodiopogon sibiricus(10~11%) show second high frequency in the both points. It was found that the soil moisture content in the Vicia chosenensis population was 20.4~21.9%; 8.6~14.9% for organic matter; 0.3~0.5% for the total N;12.7~16.9 ppm for available phosphorus; 22.5~28.5 $cmol_ckg^{-1}$ for CEC; 5.3~5.5 for soil pH, respectively. The microhabitat of individuals was restricted to areas high in understory light. Especially, reproductive individuals were more likely to be located than vegetative individuals in canopy gaps. Therefore, our results suggest that a proper forest management maintaining canopy gaps is needed for keeping natural Vicia chosenensis population.

• Journal of Sericultural and Entomological Science
• /
• v.53 no.2
• /
• pp.110-117
• /
• 2015

We bred a mulberry cultivar named Sangmaru, through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test had been carried out at three places (Suwon, Cheongju, and Jangseong) for seven years from 2008. This is tetraploidy variety belonging to Morus alba L. made by colchicine treatment on growing point of 'Chungil (Morus alba L.)' winter buds. Sangmaru was high yielding cultivar in fruit productivity by 6% compared to control cultivar 'Chungil (Morus alba L.)' for five years. Although Sangmaru was similar in sugar content of mulberry fruits, it was bigger than that of 'Chungil'. It is adaptable to every where except the places where cold damage and sclerotic disease happen frequently.

• Korean Journal of Breeding Science
• /
• v.41 no.4
• /
• pp.496-501
• /
• 2009

In order to promote the efficiency of strawberry breeding programs, pollen viability of strawberry, 'Seolhyang' was investigated using the fluorochromatic reaction test and seed set under controlled environment. Pistil receptivity was also assessed by hand pollination. Four varieties including 'Maehyang' were used for the test of pistil receptivity with 'Seolhyang' as a pollen parent. Pollen viability remained high for several days under dry conditions as below 33% relative humidity while the greatest loss of viability occurred at 76% relative humidity. The viability was rapidly decreased at high humidity and almost all grains were unviable in 7 days after storage. Pollen viability does not appear to be drastically reduced if the relative humidity is low. Therefore, humidity is more important factor than temperature for the pollen viability in Fragaria${\times}$ananassa. The rate of seed set by hand pollination lasted higher than the average of 77.2% from 2 to 8 days after emasculation when the daily average temperature was around $15^{\circ}C$ in plastic house. It began to decline gradually from 10 days and had decreased dramatically after 12 days except several cultivars. Based on the daily mean accumulated temperature, it is recommended to have an artificial pollination between the range of $45{\sim}140^{\circ}C$ after the emasculation to increase the rate of seed set in strawberry.

• 발명특허
• /
• v.6 no.8 s.66
• /
• pp.52-52
• /
• 1981

• The Korean Publising Journal, Monthly
• /
• s.314
• /
• pp.24-24
• /
• 2001

• The Korean Publising Journal, Monthly
• /
• s.316
• /
• pp.22-22
• /
• 2002

• 월간산업보건
• /
• s.354
• /
• pp.2-5
• /
• 2017