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파종기이동에 따른 두과작물의 생육특성 비교연구 제2보 콩, 팥, 녹두의 개화기 분포 및 결협율의 변이
김기준,김광호,김영희,Kim, K.J.,Kim, K.H.,Kim, Y.H. 한국작물학회 1981 Korean journal of crop science Vol.26 No.3
파종기이동에 따른 콩, 팥, 녹두의 개화기분포와 결협율의 변이를 알기 위하여 중부지방에서 널리 재배되고 있는 품종 하나씩을 공시, 5월 10일, 6월9일, 7월 9일 파종구 및 5월 10일 파종후 단일 처리한 구를 두어 시험한 결과를 요약하면 아래와 같다. 1. 각 처리별 개화까지의 일수, 개화기간 그리고 개화시에서 정엽출현까지의 일수를 비교한 결과 공시된 중 품종은 유한신육형에 그리고 팥과 녹두는 무한신육형에 속하는 것이었다. 2. 주당개화수 및 성숙협수는 3작물이 모두 7월9일 파종구 및 단일처리구에서 현저히 감소되었으나 결협율은 파종기에 따라서 일정한 경향 없이 콩 38\sim48%, 팥 23\sim34%, 그리고 녹두 46\sim60%였는데 콩과 녹두는 낙화 그리고 팥은 낙협이 각각의 결협률에 더 큰 영향을 주었다. 3. 콩은 어느 파종구에서든지 1회의 개화성기를 보인 반면 팥과 녹두는 극만파구민 7월9일 파종구를 제외하고는 2\sim3회의 개화성기를 보였고 개화최성기는 콩이 개화시로부터 10일 이내에 왔으나 팥과 녹두는 파종기에 따라서 개화시로부터 25\sim45일 사이에 왔다. 4. 개화기에 따른 성숙협수의 분포는 모든 처리구에서 개화분포와 비슷한 경향을 보였고 콩의 결협율은 개화최성기 직후에 핀 꽃들이 가장 낮았으며 그 이전 및 이후에 핀 꽃들이 점점 높은 값을 보였다. 팥과 녹두의 결협율은 각 개화성기 직전에 된 꽃들이 높았고 그 직후에 핀 꽃들이 낮은 값을 보였는데 7월 9일 파종구는 3작물에서 모두 시기적으로 늦게 핀 꽃일수록 결협률이 낮아졌다. 5. 중은 모든 파종구에서 정엽출현일을 전후로 한 5일 동안에 개화최성기를 보였으며 정엽전개 이전에 핀 꽃 및 여기서 생긴 성숙협수가 더 큰 비중을 차지한 반면 팥과 녹두는 정엽출현기와 개화 또는 결협간에 아무런 관계도 없었고 정엽전관 이후에 더 많은 꽃을 피웠다. Soybean, azuki-bean and mungbean were cultivated at different growing conditions, May 10, June 9, July 9 seeding, and May 10 seeding-short day treatment, to investigate the distribution of flowering date and the variation of pod/flower ratio. The growth habit type of the soybean variety used was determinate, but the azuki-bean and mungbean varieties used showed indeterminate growth habit. The pod/flower ratio ranged 38 to 48% for soybean, 23 to 34% for azuki-bean and 46 to 60% for mungbean along with growing conditions. Flower abscission for soybean and mungbean, and pod abscission for azuki-bean affected more on the number of matured pods. Soybean showed once full blooming period, but azuki-bean and mungbean showed two or three times full blooming period except July 9 seeding plot through the whole growing period. Flowers bloomed just after every full blooming period showed lower value of pod/flower ratio and higher pod/flower ratio was obtained from flowers bloomed before or far after full blooming at plots seeded May 10 and June 9 in three pulse crops. Most full blooming period of soybean coincided within 5 days near the terminal leaf appearance date, and number of flowers bloomed before terminal leaf expansion and matured pods from these flowers were major in every soybean plant at all growing codition plots. No relations were found between terminal leaf appearance and flowering or pod setting patterns of azuki-bean and mungbean.
K.J. KIM(金基駿) 한국육종학회 1982 한국육종학회지 Vol.14 No.2
Natural mutant of winged bean, KK-1, isolated from UPS-63 cultivar was studied on the possibility of the adaptation in Korean environment. Effects of planting date, mulching and planting densities on KK-1 were evaluated at three locations, Seoul, Jinju and Jeju. KK-1 produced the highest yield in Jeju area indicating the possibility of grain production when it was planted from April 21 to May 1. Rest of the region appeared to produce only the green for feed, because of long-day and relatively low-temperature condition during the planting and maturing periods.
디젤기관의 연소실 벽면에서의 비정상 벽표면 순간온도 및 열유속 측정: 실린더 헤드의 벽표면 순간온도 및 열유속
조진우(J.W.CHO),류영(Y.RYU),김기준(K.J.KIM),최경호(K.H.CHOI),이종태(J.T.LEE) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.6_1
The behaviors and distribution of wall temperature and heat flux on the cylinder head in the diesel engine, have been analyzed by using thin film instantaneous temperature probe. The main results are as following. ( i ) Instantaneous temperature on the cylinder head was affected by the direction of injected flame, amount of injected flame, the distance from the injection hole, combustion chamber shape, and flow characteristics (ii) Heat flux was transferred from the cylinder gas to the cylinder wall during largely expansion stroke and (iii) Heat flux distribution is shown different trend comparing to the temperature distribution.<br/>
해양환경 변화가 알루미늄합금 희생양극의 효율에 미치는 영향에 관한 연구
김성종(S. J. KIM),김도형(D. H. KIM),이명훈(M. H. LEE),김기준(K. J. KIM),문경만(K. M. MOON) 한국해양공학회 2000 韓國海洋工學會誌 Vol.14 No.2
Recently, it was reported that the life of Al Sacrifical anode is being used in port piers has been significantly shortened, compared with the original design life (e.g. average life shortened from 20 years to 13~15 year). Those factors involving these problems mentioned above were seemed to be a quality of anode material and diverse environmental factors, such as pH, flow rate, temperature, Dissolved oxygen, Chemical oxygen demand and resistivity etc. In this study, flow rate and contamination degree(pH) of sea water affecting to sacrificial anode life have been investigated in terms of electrochemical characteristics of Al alloy sacrificial anode. It was known that the lifetime of Al alloy anode was shortened not only by increasing of self-corrosion quantity by varying flow rate of sea water but also by increasing corrosion current density due to the potential difference increment between Al anode and steel structure cathode by varying contamination degree of sea water. Especially when anode current density is from 1 mA/㎝² to 3mA/㎝² and flow rate of sea water is under 2m/s, anode current efficiency is 90% above. However flow rate is over 2m/s anode current efficiency fell down sharply due to erosion corrosion as well as galvanic corrosion.