• 한국초지조사료학회지
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• 제29권1호
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• pp.7-12
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• 2009

본 시험은 우리나라 논에서 적응성이 우수한 forage pea 품종을 선발코자 2004년부터 2006까지 전라남도농업기술원 답리작 포장에서 공시 초종은 자운영 1품종(중국 자생품종)과 forage pea 2품종(cv, 'Austrian Pea', 'Livioletta')이었고 파종량은 120kg/ha으로 수행하였으며, 그 결과는 다음과 같다. 개화기는 Livioletta 품종이 5월 16일로 빠르고 Austrian Pea품종이 5월 18일로 2일정도 늦었고 월동율은 Austrian Pea 품종이 Livioletta 품종보다 떨어졌다. Austrian pea 품종의 건물률은 20.9% 보다 높았고 ha당 생초수장은 Austrian Pea 품종이 26,870kg으로 많았고 Livioletta 품종이 약 16,235kg/ha로 적었다. 그리고 건물수량에 있어서는 Austrian Pea 품종이 5,986kg/ha으로 Livioletta 품종의 3,652kg/ha보다 훨씬 많은 수량을 얻었고 조단백질 수량에 있어서도 Austrian Pea 품종이 861 kg/ha로 많이 생산되었다. Austrian Pea 품종의 조단백질 함량은 14.4%으로 Livioletta 품종의 15.5%보다 약간 낮았고 건물소화율은 Austrian Pea 품종의 74.3%이 Livioletta 품종의 61.3% 보다 높았다. 그리고 TDN 함량도 Austrian pea 품종의 70.4%이 Livioletta 품종의 62.6% 보다 높은 결과를 얻었다. 따라서 본 연구에서는 우리나라 논에서 적응성, 조단백질 함량과 건물 생산성 등을 고려한 결과 forage pea 초종이 조사료공급원 작물로 전망이 있고 품종도 Austrian Pea 품종이 우리나라 논에서 적응성이 우수한 품종으로 사료된다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 하계학술대회 논문집
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• pp.897-900
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• 2001

Space charge distributions in silane crosslinked polyethylene (SXLPE)/ crosslinked polyethylene (XLPE) laminates was investigated using a pulsed electroacoustic (PEA) method. XLPE shows heterocharge while SXLPE shows homocharge. Positive charge is accumulated at the interface of SXLPE/XLPE laminate when applied electric field is more than 20 kV/mm. The charge profile at various temperatures was also acquired using temperature-controllable PEA system. Although applied electric field is only 8.6 kV/mm, positive interfacial charge starts to appear near 50$^{\circ}C$.

• Journal of Plant Biology
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• 제29권1호
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• pp.1-10
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• 1986

Intra- and inter-specific protoplast fusion of tobacco (Nicotiana tabacum cv. Virginia 115) and pea (Pisum sativum cv. Sparkle) were carried out in highly inhomogeneous alternating electric fields. Under the electric field of alternating current (AC, sine wave), 600 V/cm and 800 kHz for tobacco protoplast, and 600 V/cm and 700 kHz for pea protoplasts, the protoplasts were aggregated in pearl chains. Intra-specific protoplast fusions were most effectively induced within the aggregates of tobacco and pea, respectively, by the additional application of a single high field pulse of direct current (DC, square wave) at 1 kV/cm for 50 $mutextrm{s}$. Inter-specific fusions between protoplasts of the two plants were most effectively induced in the electric field of 600 V/cm and 700 kHz, and square wave pulse at 1 kV/cm for 50 $mutextrm{s}$. The duration of the pulse over the electrical breakdown voltages was simulated from 1 to 100 $mutextrm{s}$ in both tobacco and pea protoplast. The yield of the electrofusion products was significantly high (above 60%), compared with that (20%) of the standard fusion method by polyethylene glycol (PEG) 4,000, and the viability of electrofused protoplasts was above 70%, but that of PEG-fused protoplasts 8~16%, when determined by Evan's blue staining method.

• Mycobiology
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• 제32권4호
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• pp.155-159
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• 2004

N-Methylhydrasteine hydroxylactam and 1-methoxyberberine chloride, both alkaloids, extracted from Corydalis longipes have been assayed for their activities against two powdery mildews. The spore germination of Erysiphe cichoracearum on detached leaf of balsam(Impatiens balsaminia) following pre- and post-inoculation treatments by their mixture has shown high efficacy against the pathogen at 100, 200 and 300 ${\mu}g/ml$. The mixture was also effective at both pre- and post-inoculation treatments at 500, 1000, 1500 ${\mu}g/ml$ doses against E. pisi causing pea powdery mildew in pea(Pisum sativum) under field conditions. The significant efficacy of the mixture of two compounds against spore germination on detached leaves of balsam and also under field conditions in pea warrants its inclusion in trials against some other diseases under field conditions.

• Asian-Australasian Journal of Animal Sciences
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• 제28권9호
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• pp.1281-1287
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• 2015

This study was performed to determine the effect of field pea silages which were the organic acid (OA) alternative of oregano and cinnamon essential oils on fermentation quality and aerobic stability. Whole crop pea was harvested at full pod stage and wilted in the laboratory at the 48 h. The chopped pea was mixed and divided into equal portions allocated to five groups: CON (non-treated), distilled water, denoted as control group; OA group, a mixture of 60% formic acid, 20% sodium formate and 20% water applied at a rate of 5 g/kg fresh forage (Silofarm Liquid, Farmavet); origanum (ORE) group, Origanum onites essential oil at 400 mg/kg fresh forage; cinnamon (CIN) group, cinnamon essential oil at 400 mg/kg fresh forage; origanum+cinnamon (ORECIN) group, a mixture of ORE and CIN applied at an equal rate of 400 mg/kg fresh forage. Cinnamon decreased acetic acid (AA), ammonia nitrogen ($NH_3-N$) and weight loss (WL) at the end of 60 days silage. Crude protein (CP) and dry matter (DM) increased by cinnamon essential oil. Yeasts were not detected in any treatments, including the control, after 7 days of air exposure. The $CO_2$ amount decreased and the formation mold was inhibited in the aerobic period by the addition of cinnamon oil. Oregano did not show a similar effect, but when it was used with cinnamon, it showed synergic effect on AA and during aerobic period, it showed antagonistic effect on mold formation and DM losses. It was found in this study that cinnamon can be an alternative to organic acids.

• 한국전기전자재료학회논문지
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• 제15권2호
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• pp.127-132
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• 2002

Space charge distributions and behaviors in silane crosslinked polyethylene(SXLPE)/ crosslinked polyethylene(XLPE) laminates were investigated using a pulsed electroacoustic (PEA) method. In case of monolayer, XLPE shows heterocharge while SXLPE shows homocharge. It was observed that charges were accumulated at the interface of SXLPE/XLPE laminate when applied electric field was more than 20kV/mm. The charge profile at various temperatures was also acquired using temperature-controllable PEA system. Although applied electric field is only 8.6 kV.mm, positive interfacial charge starts to appear near 50$^{\circ}C$. It was found that the interfacial charge behavior of SXLPE/XLPE laminate under low voltage at high temperature is corresponding to that under high voltage at room temperature.

• 한국유기농업학회지
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• 제19권spc호
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• pp.161-164
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• 2011

Nitrogen fixation by legumes can be valuable sources for organic farming. This study was to investigate the effect of different legume mixtures on nitrogen fixation and transfer to grasses on spring paddy field. Three different mixtures were used (rye+hairy vetch, Italian ryegrass+crimson clover, oat+pea) in a randomized complete block design with three replications and sowed in pots with different sowing rate (5:5 rye:hairy vetch,7:3=Italian:crimson, 6:4=oat:pea) on early March. $(^{15}NH_4)SO_4$ solution at. 99.8 atom%$^{15}N$ was applied to the each pot at the rate of 2kg N $ha^{-1}$ on $16^{th}$ April. Forage were harvested at ground level in heading stage and separated into legume and grass. Total N content and $^{15}N$ value were determined using a continuous flow stable isotope ratio mass spectrometry. DM yield of rye+vetch, Italian+crimson and oat+pea were 6,607, 3,213 and 4,312kg/ha, respectively. Proportion of N from fixation was 0.73(rye+vetch), 0.42(Italian+crimson) and 0.93(oat+pea). The percentages of N transfer from legume to grass were from 61% to 24% in different method by treatments and -35% to 21% in isotope dilution method.

• 한국응용곤충학회지
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• 제46권1호
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• pp.159-164
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• 2007

2001부터 2003년까지 영남지방에서 완두콩바구미는 완두의 꽃과 협에서 쉽게 관찰되었으나, 콩에서 관찰되지 않았다. 지역별 완두꽃에서 완두콩바구미의 발생수는 밀양에서 약 20마리로 가장 많았으며, 다음은 양산(15마리), 사천(14마리) 및 창녕(13마리) 순서였으며, 포항에서 3마리로 가장 적었다. 한편, 완두 협에서 완두콩바구미의 발생수는 통영에서 192마리로 가장 많았으며, 다음은 창녕(171마리), 사천(157마리) 및 창원(138마리)의 순서였으며, 포항에서 12마리로 가장 낮아 완두꽃에서의 결과와 같은 경향이었다. 약종별 1회 및 2회 약제살포 후 완두 협의 수확시기에 따른 완두콩바구미의 발생수는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 차이가 없었다. 또한 약종별 1회 및 2회 약제살포 후 완두 립의 피해수는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 차이가 없었다. 따라서 약종별 살포횟수에 따른 방제효과는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 유의한 차이 없이 약 96% 이상의 방제가를 나타내었다.

• 한국작물학회지
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• 제51권6호
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• pp.534-538
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• 2006

The effects of Rhizobium inoculant, compost, and nitrogen on nodulation, growth, dry matter production, yield attributes, and yield of pea (Pisum sativum) var, IPSA Motorshuti-3 were assessed by a field experiment. Among the treatments Rhizobium inoculant alone performed best in recording number and dry weight of nodules/plant. The highest green seed yield of 8.38 ton/ha (36.9% increase over control) and mature seed yield of 2.97 ton/ha (73.7% increase over control) were obtained by the application of 90 kg N/ha. The effects of 60 kg N/ha, Rhizobium inoculant alone and Rhizobium inoculant along with 5 ton compost/ha were same as the effect of 90 kg N/ha in recording plant height, root length, dry weight of shoot, and root both at preflowering and pod filling stages, number of mature pods/plant, number of mature seeds/pod, 1000-seed weight, green, and mature seed yields of pea.

• 한국초지조사료학회지
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• 제31권1호
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• pp.33-38
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• 2011

본 연구는 논에서 이탈리안 라이그라스와 두과 사료작물 혼파에 의한 생산성을 구명코자 전라남도농업기술원에서 2004년부터 2008년까지 수행하였다. 처리내용은 이탈리안 라이그라스(코윈어리 품종) 단파에 자운영, forage pea, crimson clover 그리고 hairy vetch을 혼파하는 5처리 3반복으로 실시하였다. 그리고 이탈리안 라이그라스와 두과 사료작물 혼파비율은 단파 기준으로 70:30 비율로 혼파하였다. 논에서 이탈리안 라이그라스 단파와 두과 사료작물 혼파에 의한 건물률은 23.6~26.8%였고 혼파에 따른 건물률은 비슷하였다. 그리고 이탈리안 라이그라스와 forage pea와 혼파에 의한 생초 및 조단백질 수량은 각각 ha당 40,100 kg, 그리고 625 kg/ha으로 유의적으로 많았다(p<0.05). 또한 건물수량은 이탈리안 라이그라스와 forage pea 그리고 hairy vetch 혼파시 ha당 각각 9,470 kg 그리고 9,500 kg 유의적으로 많았다(p<0.05). 이탈리안 라이그라스와 forage pea 혼파 토양의 유효인산 함량이 78 mg /kg으로 많았으며, 이탈리안 라이그라스 단파 K 함량보다 혼파시 0.52~0.88$cmol^+$/kg으로 훨씬 높았다. 따라서 논에서 이탈리안 라이그라스와 forage pea을 혼파하여 건물수량, 조단백질 수량의 증가 및 재배의 안정성 제고에 효과적이었으며, 이탈리안 라이그라스 단파보다는 혼파재배가 바람직한 것으로 평가되었다.