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버어리종 담배의 수량과 품질에 미치는 심경다비의 영향에 관한 연구
유점호,김대송,한철수,이규상 한국연초학회 1979 한국연초학회지 Vol.1 No.2
심경과 多肥栽培가 버어리種 담배의 收量 및 品質에 미치는 영향을 구명하고자 耕土깊이를 10,20,30cm로 하고 施肥水準을 標準施肥(138kg/10a), 20%增肥, 40%增肥로 하여 3년간(1976-1978) 實驗한 결과 收量 및 品質 공히 심경 다비할수록 증가하여 수량은 耕土깊이 30cm 구에서 5%, 40%增肥區에서 13%가 증가하였으며 품질은 심경과 다비로 각각 2%씩 증가하였다. This experiment was carried out determine the effect of plowing depth and heavy fertilization on the yield and quality of Burley tobacco. In the experiment, three plowing depth (10, 20, 30cm) and three levels of compound fertilizer (138, 166, 193kg/10a) were employed with split plot design for three years (1976-1978). Yield and quality were increased with deeper plowing and heavier fertilization. Yield was increased by 5% at the plowing depth of 30cm and 13% at the fertilizing level, 193kg/10a. The value per kg was increased by 2% plowing depth of 30cm and at the fertilization of 193kg/10a, respectively.
수분부족이 콩의 질산환원효소 활성과 Abscisic acid 함량에 미치는 영향
柳點鎬,朴洪秀,高庚男,秋秉佶,李康壽 韓國作物學會 1994 한국작물학회지 Vol.39 No.3
콩의 내한발성 품종육성 및 선발에 대한 기초자료를 얻고자 팔달콩, 새알콩 및 단엽콩을 공시하여 수경재배에서는 수경액을 PEG처리로, pot 실험에서는 단수처리하여 수분부족을 유기하고 PEG 농도, 품종 및 생육시기별로 엽의 수분 potential, 질산환원효소의 활성 및 ABA 함량을 조사하였다. 1. 엽의 수분 potential은 PEG의 농도가 높을수록 낮았으며 생육시기에 따라서는 제1엽기보다 제3엽기와 제5엽기에 높았는데, 품종간에는 차이가 없었다. 엽의 수분 potential은 단수처리 3일후에 무처리에서보다 약 2.2배가 감소되었다. 2. 질산환원효소의 활성은 PEG의 농도가 높을수록 낮았고 제1엽기보다 제3엽기와 제5엽기에 높았으며, 품종간에는 팔달콩이 새알콩과 단엽콩 보다 높았다. 단수처리에서는 처리 3일후에 질산환원효소의 활성이 무처리에서보다 약 47%가 감소되었다. 3. ABA의 함량은 PEG의 농도가 높을수록 높았고 제1엽기와 제3엽기보다 제5엽기에 높았으며 품종간에는 팔달콩이 새알콩과 단엽콩보다 높았다. 단수처리에서는 처리 3일 후에 ABA의 함량이 무처리에서보다 약 1.7배가 증가하였으며 생육후기보다 생육초기에 더욱 증가하였다. To investigate effects of water stress on leaf water potential, nitrate reductase activity and abscisic acid content, Paldalkong, Saealkong and Danyeobkong were subjected to water stress by polyethyene glycol(PEG, MW=6,000) in the water culture and withholding irrigation in soil culture. Leaf water potential and nitrate reductase activity decreased with increaseing of PEG concentration in the water culture. These were higher at 3rd and 5th leaf stage than at 1st leaf stage. Leaf water potential showed no significant differance among the varieties, but nitrate redutase activity was higher in Paldalkong than in Saealkong and Danyeobkong. Leaf water potential and nitrate reductase activity decreased approximately 2.2 times (-1.67 MPa/-0.75MPa) and 47%(3.1~mu mole nitrite/g.DW/hour/15.9~mu mole nitrite/g.DW/hour) to control, respectively, after 3 days from water stress treatment in the soil culture. According to increasing PEG concentration, abscisic acid content increased in the water culture and was higher at 5th leaf stage than at 1st and 3rd leaf stage. Paldalkong showed the highest abscisic acid content. Abscisic acid content increased approximately 1.7 times (9.9nmole/g.DW/5.7nmole/g.DW) compared to the control after 3 days from water stress treatment in the soil culture.
참깨(Sesamum indicum L.)의 葯培養에 의한 半數體 育成 : II.Haploidal Callus 誘起에 미치는 低溫處理,培地,培養條件 및 品種의 影響
柳點鎬,金濟桓,杜洪秀,權泰鎬 전북대학교 농업과학기술연구소 1993 農大論文集 Vol.24 No.1
This studies were conducted to provide the basic information about the duration and temperature of cold treatment, media, cultural condition, varieties and F1 on callus induction using the anther of sesame(Sesamum indicum L. and S. orientale L.). 1. Duration of cold treatment to induct the haploidal callus was the most effective for 2~44days in 10˚C both Danbaek and Wild type. 2. Murashge and Skoog's medium was more effective than any others in anther culture. 3. Continous dark culture was the most effective and combination of dark and light was less effective than continous dark culture. 4. Induction ratio of haploidal callus in Danbaek and Wild type was the highest than any others and that of F1 hybrid was less than dornor plant.
柳點鎬 전북대학교 농업과학기술연구소 1988 農大論文集 Vol.19 No.-
To obtain the basic information for shortening the bleeding period, mass propagation and the production of interspecific hybrids, the lotus (Nelumbo nucifera gasrtn) embryos at 20 days after (lowering were cultured in vitro on the Murashige and Skoog's ( MS) medium which contained the combinations of NAA (O,1,2 ppm) and Kinetin (0,1,2 ppm). The results are as follows. 1. Rooting rate, root number, root length and shoot growth of lotus embryo were remarkable on the basal MS medium without NAA and Kinetin, The higher the concentration of NAA and Kinetin, the more severe the inhibition of their growth sllowed. 2. On the basal MS medium under the light culture, the rooting rate at 20 and 30 days after culture we-re 66% and 100%, and shoot length at those times were 5.9cn and 10.3cn, respectively. While, under the dark culture, the rooting' rate at 20 and 30 days after culture were 16 % and 33%, and shoot length were 10.9 cm and 14.3cm, respectively. 3. The explants at 20 days after culture in vitro could be transplanted on the soil pot. 4. The Induction of callus was not observed at all 5. On the whole, light cultural condition was better than the dark one for the growth of embryo.
柳點鎬,崔善英,金濟桓,李康壽 全北大學校 1993 論文集 Vol.35 No.-
In order to find out the influence of shading degree on the growth, pod setting, protein contents, RuBPCase activity, photosynthesis and yield in soybean plants, two soybean varieties, Hill and Etaka were cultivated under the 0%(full sun light), 20%, 65% and 90% shading conditions. Protein contents, RuBPCase activity and photosynthesis of leaves in Hill were decreased linearly with the higher shading, but those in Etaka were increased up to 20% shading, and then decreased more rapidly than Hill when the shading was above 65%. Pod sets were decreased with the higher shading degree, and those of the degree were severe in upper nodes. The stem heights were increased in accordance with the shading up to 65%, but stem diameter and No. of branches were decreased linearly with the higher shading degree. The yield of Hill was decreased linearly with the higher shading degree, but that of Etaka were increased up to 20% shading, and decreased inure severely than Hill when the shading was above 65%. From the above results : Etaka is more suitable than Hill to weak shading which occurred in the case of intercropping, companion cropping and alternating cropping, and the shading degree must not go over above 20%.