• 한국응용곤충학회지
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• 제54권4호
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• pp.311-316
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• 2015

본 연구는 토마토에 대하여 가지가 트랩식물로써 담배가루이를 효과적으로 유인할 수 있을지에 대한 잠재성을 평가하였다. 큰망초, 가지, 오이, 토마토에 대한 담배가루이의 선호성을 비교하기 위하여 선택성 조사가 수행되었다. 담배가루이 성충은 후각적인 자극보다는 시각적인 자극에 더 민감함을 보여주었고 큰망초보다는 오이와 가지를 더 선호하였다. 가지와 오이의 담배가루이 유인률은 각각 82.3%와 82.5% 였다. 가지는 오이보다 관리측면에서 더 쉽기 때문에 우리는 본 실험에서 오이를 제외하였다. 담배가루이 성충에 대한 가지의 유인률은 토마토의 초장과 같거나 더 클 때 90% 이상 이었다.

• Journal of Ecology and Environment
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• 제36권1호
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• pp.11-17
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• 2013

The life cycle of butterflies is closely related to the growth of food plants and, through a prolonged coevolutionary process, has undergone an ecological adaptation. So, it is important that control the egg-laying number and place to secure enough food plant by female adult to guarantee the survival of the larvae. To study whether oviposition control of the Luehdorfia puziloi takes into greater consideration food plant leaf biomass or leaf abundance, correlation among the egg cluster size, the leaf size, and the number of leaves around egg clusters was investigated. According to the results, the egg clusters size exhibited positive correlation with the leaf size of food plants on which eggs had been laid but did not do so with the number of surrounding leaves. In addition, the number of egg clusters laid exhibited positive correlation with the number of surrounding food plant leaves but not with the leaf size on which eggs had been laid. Consequently, for the Luehdorfia puziloi, the females' recognition of the leaf size seems to be the most important factor in the egg cluster size, and the number of egg clusters had positive correlation with food plant density per unit area.

• 한국축산식품학회지
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• 제38권3호
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• pp.442-450
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• 2018

Liquid egg products can be contaminated with Salmonella spp. during processing. A predictive model for the growth of Salmonella spp. in unpasteurized liquid eggs was developed and validated. Liquid whole egg, liquid yolk, and liquid egg white samples were prepared and inoculated with Salmonella mixture (approximately 3 Log CFU/mL) containing five serovars (S. Bareilly, S. Richmond, S. Typhimurium monophasic, S. Enteritidis, and S. Gallinarum). Salmonella growth data at isothermal temperatures (5, 10, 15, 20, 25, 30, 35, and $40^{\circ}C$) was collected by 960 h. The population of Salmonella in liquid whole egg and egg yolk increased at above $10^{\circ}C$, while Salmonella in egg white did not proliferate at all temperature. These results demonstrate that there is a difference in the growth of Salmonella depending on the types of liquid eggs (egg yolk, egg white, liquid whole egg) and storage temperature. To fit the growth data of Salmonella in liquid whole egg and egg yolk, Baranyi model was used as the primary model and the maximum growth rate and lag phase duration for each temperature were determined. A secondary model was developed with maximum growth rate as a function of temperature. The model performance measures, bias factor ($B_f$, 0.96-0.99) and $r^2$ (0.96-0.99) indicated good fit for both primary and secondary models. In conclusion, it is thought that the growth model can be used usefully to predict Salmonella spp. growth in various types of unpasteurized liquid eggs when those are exposed to various temperature and time conditions during the processing.

• 한국가금학회지
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• 제21권3호
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• pp.183-193
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• 1994

White Leghorn hens were fed a commercial formula feeds as a basal diet, which was supplemented with 3 types of plant oil safflower, evening primrose and pine seed, at the 10% level for 3 weeks. No significant changes was found between the basal diet and the oil feeding trials in the egg yolk cholesterol content, the laying rate, the egg weight, and the yolk weight, except the feed intake. In the fatty acid composition of the egg yolk lipid, however, the plant oil feedings to hens resulted in considerable increase of $C_{18:2}$ acid with a simultaneous decrease of $C_{18:2}$ acid ,and, consequently, followed by the improvement of balance with P /S and P /M /S ratio close to 1.0 and 1:1:1, which is known a desirable ratio for human health in lipid nutrition, respectively.

• 한국토양비료학회지
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• 제43권6호
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• pp.975-977
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• 2010

Ammonium nitrogen is volatilized as ammonia at high pH soil. This study was conducted to observe an injury cause of egg plant grown in a high pH rockwool amended with ammonium phosphate. The etiolation symptom (yellowing) was appeared on veins of a leaf but not in healthy root when nutrient solution containing ammonium phosphate in addition to essential elements was applied in a top soil of which pH was 7.8. However, the same symptom did not appeared in the egg plant from the top soil in which the nutrition solution containing potassium phosphate instead of ammonium phosphate was applied. pHs were similar between these two different solutions. This revealed that the injury was caused by ammonia gas.

• 식물병연구
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• 제16권3호
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• pp.232-237
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• 2010

Tomato spotted wilt virus(TSWV)의 상습 발생지인 안양지역에서 가지, 알타리무, 슈가로프에서 TSWV가 발생하였다. 알타리무에서는 잎에 괴저반점과 뿌리에 괴저 병징이 나타났다. 가지에서는 잎에 전형적인 다중 원형반점을 나타냈으며 열매에 심한 괴저를 나타냈다. 슈가로프에서는 잎에 전형적인 원형반점과 심한 위축 병징이 나타났다. 가지, 알타리 무, 슈가로프에서 분리한 TSWV의 생물적 특성은 흰 명아주, 붉은 명아주, 담배(N. devney)에서는 국부 감염이었으며, 담배(N. glutinosa, N. benthamiana)와 독말풀(D. stramonium)에서는 전심감염이었다. 가지와 슈가로프에서 분리한 TSWV는 병원성이 유사하였으나, 알타리 무에서 분리한 TSWV는 N. tabacum 'Xanthi NC' 등 5종의 담배에서 국부 감염되어 병원성이 매우 상이하였다.

• 생물환경조절학회지
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• 제11권3호
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• pp.133-138
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• 2002

본 실험은 가지과 작물의 염 스트레스에 대한 생장 특성 및 생리적 반응을 구명하기 위하여 수행되었다. 생육단계에 따라 NaCl을 농도별로 처리한 결과는 다음과 같았다. 초장, 생체중 등 생육은 유묘기 및 영양 생장기 모두 NaCl 농도가 높을수록 모든 작물에서 억제되었다 특히 토마토 및 가지에서는 NaCl 40mM 이상에서, 그리고 고추에서는 20mM 이상에서 작물의 생육이 크게 억제되었다. 수량은 토마토 및 가지에 서는 NaCl 20 mM 이상에서, 그리고 고추에서는 10 mM 이상에서 감소하였다. 이러한 수량감소는 낮은 농도에서는 착과수의 감소에, 그리고 농도가 높을수록 착과수의 감소와 더불어 평균과중의 감소의 영향이 컸다. 광합성 속도는 NaCl 농도가 높을수록 감소하는 경향이었으며. 고추가 가장 낮았고, 토마토, 가지 순으로 낮았다. 잎의 수분포텐셜과 기공 전도도도 광합성과 같은 경향을 나타냈다. 경엽의 무기 양분 함량에서는 질소, 인산, 칼슘, 마그네슘 및 칼륨 함량은 NaCl 농도가 증가할수록 감소하였으나 Na 및 Cl 함량은 증가하였다.

• 환경생물
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• 제34권3호
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• pp.161-168
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• 2016

본 연구에서는 엽록소 형광반응 (OJIP)분석을 통해 고추재배에서 폐달걀 분해 액비의 생육증진효과에 대하여 평가하였다. 고추재배 전기간을 통하여 고추의 생장은 통계학적으로 유의성을 보이지는 않았으나, 폐달걀 분해 액비를 처리한 실험구에서 좋은 생육을 보였다. 엽록소 형광반응 실험 시작한 후 무처리구의 엽록소 형광량이 분해 액비의 형광량보다 커서 분해 액비 처리구의 광이용 효율이 더 좋았음을 알 수 있었다. 이는 결국 광합성량의 증가로 이어질 것으로 판단된다. 광화학 매개변수 중 Fo, ABS/RC, RC/ABS, TRo/RC, $DI_0$/RC, $\text{DF_{TOTAL ABS}}$ 등 6개 parameter가 광화학 반응의 효율을 나타내는 중요한 요인으로 판단되었다.

• The Plant Pathology Journal
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• 제26권1호
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• pp.32-36
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• 2010

Twelve fungal isolates out of 123 isolates obtained from cysts and soils of potato cyst nematode (PCN)-infested fields in Central Java, Indonesia had parasitic abilities of over 50% on PCN eggs or females (cysts) in vitro pathogenicity tests. Cultural and morphological characters and DNA sequences of ribosomal genes in ITS region revealed that they were four isolates of Gliocladium (Trichoderma) virens, three isolates of Fusarium oxysporum, one of F. lateritium, one of Penicillium tritinum and two of Taralomyces spp. A hundred percent infections occurred in eggs or cysts by three fungal isolates G. virens, F. oxysporum and P. oxalicum, suggesting that these fungi may have a good potential for the PCN biocontrol. Especially, G. virens isolates, which occurred most frequently in the PCN-infested potato fields and are known to be highly adaptable to varying habitats, may be developed as reliable agents for controlling PCN with both egg- and cyst-parasitic capabilities and with high ecological adaptabilities.

• Journal of Plant Biology
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• 제6권2호
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• pp.3-6
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• 1963

As a part of embryological studies of Panax ginseng, megasporangium and megagametophyte formations were investigated. Ovule is found to be auatropous. Small-sized nucellus is surrounded by thick layered single integument. As the embryo sac develops, the nucellus along with some parts of the inner epidermis of integument disintegrates and completely disappers at flowering stage. Embryo sac takes the type of typical Polygonum although antipodal cells disappear and polar nuclei fuse to form secondary nucleus before fertilization. Mature embryo sac consists of egg apparatus and large secondary nucleus lying adjacent to the egg. Besides the normal ovule, tiny incomplete ovule develops near the base of style. Frequently two normal ovules are formed in a single locule. Chromosome number counted is PMC is n=24.