• 제목/요약/키워드: fig varieties

검색결과 16건 처리시간 0.026초

방사성동위원소 $^{32}P$를 이용한 멸구 류에 대한 품종저항성 검정방법에 관한 연구(I) (Screening method of varietal resistance to planthoppers labeled with radioisotope $^{32}P$ ( I ))

  • 이정운;김용헌;박중수;석순종;고현관
    • 한국응용곤충학회지
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    • 제20권2호
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    • pp.117-121
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    • 1981
  • 멸구류에 대한 품종저항성 검정법을 개발하고자 동위원소 $^{32}P$를 이용 식물체를 통하여 충체에 이행된 $^{32}P$ 방출량을 G.M. Counter로 조사하므로서 저항성 정도를 판별하기 위한 연구중 일차적으로 다음과 같은 결과를 얻었다. 가. 공시기구 개발 : 공시기구 개발을 위해 4가지 형의 기구를 공시하였는데 B,C,D형 기구는 공시법과 $^{32}P$ 용액과 분리된 시험기구로서 이중 D형이 가장 취급이 간편하며 안전하게 $^{32}P$의 흡즙량을 조사할 수 있었다(Fig. 1). 나. $^{32}P$의 적정량 : 식물체에 흡수시킬시 2Ml 까지 비슷한 경향을 보였으나 흡즙시간의 경과에 따라서 $^{32}P$용액을 식물체가 흡수하여 차츰 적은 량으로 되어 뿌리의 활력에 따라서 개체간 흡수량의 차이가 생길 우려가 있어 $2\~3ml$$^{32}P$용액이 요구되었다. 의. $^{32}P$의 방사능 세기 : $0.07\~7{\mu}Ci$까지는 충체에 미치는 영향이 없었으며 처리별로 각각 충분한 CPM의 방사능을 나타내었기에 $0.7{\mu}Ci$ 내외의 방사능 세기가 멸구류 검정시 효과적으로 본다. 라. 충표식방법 및 충탈피각내 잔류량 : :식물성의 흡수를 통한 표식이 효과적이었으로 충탈피각내에는 잔류량이 거의 없는 것으로 나타났다.

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논벼 장.단간품종의 증발산제계수와 건물량과의 관계에 대한 연구(I) (Studies on Relations between Various Coeffcients of Evapo-Transpiration and Quantities of Dry Matters for Tall-and Short Statured Varieties of Paddy Rice)

  • 류한열;김철기
    • 한국농공학회지
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    • 제16권2호
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    • pp.3361-3394
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    • 1974
  • The purpose of this thesis is to disclose some characteristics of water consumption in relation to the quantities of dry matters through the growing period for two statured varieties of paddy rice which are a tall statured variety and a short one, including the water consumption during seedling period, and to find out the various coefficients of evapotranspiration that are applicable for the water use of an expected yield of the two varieties. PAL-TAL, a tall statured variety, and TONG-lL, a short statured variety were chosen for this investigation. Experiments were performed in two consecutive periods, a seedling period and a paddy field period, In the investigation of seedling period, rectangular galvanized iron evapotranspirometers (91cm${\times}$85cm${\times}$65cm) were set up in a way of two levels (PAL-TAL and TONG-lL varieties) with two replications. A standard fertilization method was applied to all plots. In the experiment of paddy field period, evapotanspiration and evaporation were measured separately. For PAL-TAL variety, the evapotranspiration measurements of 43 plots of rectangular galvanized iron evapotranspirometer (91cm${\times}$85cm${\times}$65cm) and the evaporation measurements of 25 plots of rectangular galvanized iron evaporimeter (91cm${\times}$85cm${\times}$15cm) have been taken for seven years (1966 through 1972), and for TONG-IL variety, the evapotranspiration measurements of 19 plots and the evaporation measurements of 12 plots have been collected for two years (1971 through 1972) with five different fertilization levels. The results obtained from this investigation are summarized as follows: 1. Seedling period 1) The pan evaporation and evapotranspiration during seedling period were proved to have a highly significant correlation to solar radiation, sun shine hours and relative humidity. But they had no significant correlation to average temperature, wind velocity and atmospheric pressure, and were appeared to be negatively correlative to average temperature and wind velocity, and positively correlative to the atmospheric pressure, in a certain period. There was the highest significant correlation between the evapotranspiration and the pan evaporation, beyond all other meteorological factors considered. 2) The evapotranpiration and its coefficient for PAL-TAL variety were 194.5mm and 0.94∼1.21(1.05 in average) respectively, while those for TONG-lL variety were 182.8mm and 0.90∼1.10(0.99 in average) respectively. This indicates that the evapotranspiration for TONG-IL variety was 6.2% less than that for PAL-TAL variety during a seedling period. 3) The evapotranspiration ratio (the ratio of the evapotranspiration to the weight of dry matters) during the seedling period was 599 in average for PAL-TAL variety and 643 for TONG-IL variety. Therefore the ratio for TONG-IL was larger by 44 than that for PAL-TAL variety. 4) The K-values of Blaney and Criddle formula for PAL-TAL variety were 0.78∼1.06 (0.92 in average) and for TONG-lL variety 0.75∼0.97 (0.86 in average). 5) The evapotranspiration coefficient and the K-value of B1aney and Criddle formular for both PAL-TAL and TONG-lL varieties showed a tendency to be increasing, but the evapotranspiration ratio decreasing, with the increase in the weight of dry matters. 2. Paddy field period 1) Correlation between the pan evaporation and the meteorological factors and that between the evapotranspiration and the meteorological factors during paddy field period were almost same as that in case of the seedling period (Ref. to table IV-4 and table IV-5). 2) The plant height, in the same level of the weight of dry matters, for PAL-TAL variety was much larger than that for TONG-IL variety, and also the number of tillers per hill for PAL-TAL variety showed a trend to be larger than that for TONG-IL variety from about 40 days after transplanting. 3) Although there was a tendency that peak of leaf-area-index for TONG-IL variety was a little retarded than that for PAL-TAL variety, it appeared about 60∼80 days after transplanting. The peaks of the evapotranspiration coefficient and the weight of dry matters at each growth stage were overlapped at about the same time and especially in the later stage of growth, the leaf-area-index, the evapotranspiration coefficient and the weight of dry matters for TONG-IL variety showed a tendency to be larger then those for PAL-TAL variety. 4) The evaporation coefficient at each growth stage for TONG-IL and PAL-TALvarieties was decreased and increased with the increase and decrease in the leaf-area-index, and the evaporation coefficient of TONG-IL variety had a little larger value than that of PAL-TAL variety. 5) Meteorological factors (especially pan evaporation) had a considerable influence to the evapotranspiration, the evaporation and the transpiration. Under the same meteorological conditions, the evapotranspiration (ET) showed a increasing logarithmic function of the weight of dry matters (x), while the evaporation (EV) a decreasing logarithmic function of the weight of dry matters; 800kg/10a x 2000kg/10a, ET=al+bl logl0x (bl>0) EV=a2+b2 log10x (a2>0 b2<0) At the base of the weight of total dry matters, the evapotranspiration and the evaporation for TONG-IL variety were larger as much as 0.3∼2.5% and 7.5∼8.3% respectively than those of PAL-TAL variety, while the transpiration for PAL-TAL variety was larger as much as 1.9∼2.4% than that for TONG-IL variety on the contrary. At the base of the weight of rough rices the evapotranspiration and the transpiration for TONG-IL variety were less as much as 3.5% and 8.l∼16.9% respectively than those for PAL-TAL variety and the evaporation for TONG-IL was much larger by 11.6∼14.8% than that for PAL-TAL variety. 6) The evapotranspiration coefficient, the evaporation coefficient and the transpiration coefficient and the transpiration coefficient were affected by the weight of dry matters much more than by the meteorological conditions. The evapotranspiratioa coefficient (ETC) and the evaporation coefficient (EVC) can be related to the weight of dry matters (x) by the following equations: 800kg/10a x 2000kg/10a, ETC=a3+b3 logl0x (b3>0) EVC=a4+b4 log10x (a4>0, b4>0) At the base of the weights of dry matters, 800kg/10a∼2000kg/10a, the evapotranspiration coefficients for TONG-IL variety were 0.968∼1.474 and those for PAL-TAL variety, 0.939∼1.470, the evaporation coefficients for TONG-IL variety were 0.504∼0.331 and those for PAL-TAL variety, 0.469∼0.308, and the transpiration coefficients for TONG-IL variety were 0.464∼1.143 and those for PAL-TAL variety, 0.470∼1.162. 7) The evapotranspiration ratio, the evaporation ratio (the ratio of the evaporation to the weight of dry matters) and the transpiration ratio were highly affected by the meteorological conditions. And under the same meteorological condition, both the evapotranspiration ratio (ETR) and the evaporation ratio (EVR) showed to be a decreasing logarithmic function of the weight of dry matters (x) as follows: 800kg/10a x 2000kg/10a, ETR=a5+b5 logl0x (a5>0, b5<0) EVR=a6+b6 log10x (a6>0 b6<0) In comparison between TONG-IL and PAL-TAL varieties, at the base of the pan evaporation of 343mm and the weight of dry matters of 800∼2000kg/10a, the evapotranspiration ratios for TONG-IL variety were 413∼247, while those for PAL-TAL variety, 404∼250, the evaporation ratios for TONG-IL variety were 197∼38 while those for PAL-TAL variety, 182∼34, and the transpiration ratios for TONG-IL variety were 216∼209 while those for PAL-TAL variety, 222∼216 (Ref. to table IV-23, table IV-25 and table IV-26) 8) The accumulative values of evapotranspiration intensity and transpiration intensity for both PAL-TAL and TONG-IL varieties were almost constant in every climatic year without the affection of the weight of dry matters. Furthermore the evapotranspiration intensity appeared to have more stable at each growth stage. The peaks of the evapotranspiration intensity and transpiration intensity, for both TONG-IL and PAL-TAL varieties, appeared about 60∼70 days after transplanting, and the peak value of the former was 128.8${\pm}$0.7, for TONG-IL variety while that for PAL-TAL variety, 122.8${\pm}$0.3, and the peak value of the latter was 152.2${\pm}$1.0 for TONG-IL variety while that for PAL-TAL variety, 152.7${\pm}$1.9 (Ref.to table IV-27 and table IV-28) 9) The K-value in Blaney & Criddle formula was changed considerably by the meteorological condition (pan evaporation) and related to be a increasing logarithmic function of the weight of dry matters (x) for both PAL-TAL and TONG-L varieties as follows; 800kg/10a x 2000kg/10a, K=a7+b7 logl0x (b7>0) The K-value for TONG-IL variety was a little larger than that for PAL-TAL variety. 10) The peak values of the evapotranspiration coefficient and k-value at each growth stage for both TONG-IL and PAL-TAL varieties showed up about 60∼70 days after transplanting. The peak values of the former at the base of the weights of total dry matters, 800∼2000kg/10a, were 1.14∼1.82 for TONG-IL variety and 1.12∼1.80, for PAL-TAL variety, and at the base of the weights of rough rices, 400∼1000 kg/10a, were 1.11∼1.79 for TONG-IL variety and 1.17∼1.85 for PAL-TAL variety. The peak values of the latter, at the base of the weights of total dry matters, 800∼2000kg/10a, were 0.83∼1.39 for TONG-IL variety and 0.86∼1.36 for PAL-TAL variety and at the base of the weights of rough rices, 400∼1000kg/10a, 0.85∼1.38 for TONG-IL variety and 0.87∼1.40 for PAL-TAL variety (Ref. to table IV-18 and table IV-32) 11) The reasonable and practicable methods that are applicable for calculating the evapotranspiration of paddy rice in our country are to be followed the following priority a) Using the evapotranspiration coefficients based on an expected yield (Ref. to table IV-13 and table IV-18 or Fig. IV-13). b) Making use of the combination method of seasonal evapotranspiration coefficient and evapotranspiration intensity (Ref. to table IV-13 and table IV-27) c) Adopting the combination method of evapotranspiration ratio and evapotranspiration intensity, under the conditions of paddy field having a higher level of expected yield (Ref. to table IV-23 and table IV-27). d) Applying the k-values calculated by Blaney-Criddle formula. only within the limits of the drought year having the pan evaporation of about 450mm during paddy field period as the design year (Ref. to table IV-32 or Fig. IV-22).

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과일류의 명칭 및 분류: 국내와 코덱스 비교 (Classification and Nomenclature of Fruit Commodities in South Korea and Codex Alimentarius Commission)

  • 이미경
    • 한국식품위생안전성학회지
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    • 제33권3호
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    • pp.162-167
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    • 2018
  • 본 연구는 과일류의 국내 명칭에 상응하는 코덱스 명칭과 코드번호, 그리고 변경 또는 검토가 요구되는 국내 명칭과 분류를 파악하기 위해 수행되었다. 국내 명칭과 분류에 대해서는 식품공전과 식품의 농약 잔류허용기준 발간물을 그리고 코덱스에 대해서는 'Codex Classification of Foods and Animal Feeds'를 검토하였다. 연구 결과는 다음과 같았다. 첫째 구기자, 무화과, 석류, 오미자에 대한 분류가 국내와 코덱스가 다르므로 이에 대한 검토가 필요한 것으로 나타났다. 둘째 감, 감귤, 구기자, 금귤, 나무딸기, 대추, 대추야자, 리치, 매실, 머루, 모과, 복분자, 산딸기, 산수유, 앵두, 오미자, 유자, 으름, 자두, 코코넛, 키위, 탱자의 경우 국문 또는 영명을 국내에서 조차 달리 사용하고 있거나 코덱스와 차이가 있으므로 이들 식품 명칭에 대한 개정이나 검토가 필요한 것으로 나타났다. 셋째 복숭아의 경우 천도복숭아를 포함하는 지가 명확하지 않고 라즈베리와 나무딸기 둘 모두가 국내 영명이 Raspberry 이므로 이들 식품 명칭에 대한 면밀한 검토가 필요한 것으로 판단된다.

한국산 양식김의 종류 (SPECIES OF CULTIVATED PORPHYRA IN KOREA)

  • 강제원
    • 한국수산과학회지
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    • 제3권2호
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    • pp.77-92
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    • 1970
  • Ueda, in the course of his systematic work on the lavers, Porphyra, in Japan and Korea in 1932, mentioned that most of the cultivated Porphyra belong to Porphyra tenera Kjellman. Then he, dividing the species into two forms, f. typica and f. kjellmani, put Korean cultivated Porphyra under the latter. From the 1930s to the early 1940s, Fujikawa, Kaneko and others worked on Physiological experiments or cultivational experiments of Porphyra in the culture-bed, but there was no mention about the cultivated Porphyra species. However, many fishermen generally recognize that the characteristics of cultivated Porphyra vary depending on their habitat or the picking season, and it is considered that these differences are due to the varieties of the species which are well adaptable to various environments. Recently, I have become aware of the predominant occurrence of P. yezoensis Ueda in most culture-beds of Korea as in the Tokyo Bay or other places in Japan. At present, since artificial seeding for the cultivation of Porphyra with Conchocelis has been carried out and peculiar species can be cultured, a study of the species of cultivated Porphyra has become an important subject. I collected the specimens from a number of culture-beds which are located in the legions shown in fig. 1 from January, 1968 to May, 1970 and found that there are five species, P. tenera Kjellman, P. yezoensis Ueda, P. kuniedai Kurogi, P. seriata Kjellman and P. suborbiculata Kjellman. Among them, P. kuniedai was treated as a round-type, a form of P. tenera, by Kunieda (1939) and Tanaka (1952) and the occurrence of this form is generally recognized by most fishermen. At present, as mentioned above, the most dominant species of cultivated Porphyra is P. yezoensis but the cultivation of P. tenera is restricted to certain culture-beds or the early half of the cultivation period. P. kunieda appears as a mixed species throughout most of the culture-beds, particulary in the later half of the period, while when it was picked in January it appeared dominantly in a place such as Gum-Dang where the 'Bal', splitted bamboo piece mat, was settled during the last of September. This is the first seeding process. The latter two species, P. suborbiculata and P. seriata appear frequently but in small amounts in the later half of the period particulary in the western region of the southern coast. However, it can not be ascertained when P. yezoensis becomes predominant, because specimens have not been available up until recent years but the process can be described as follows: We commonly recognize the ecological characteristics of P. tenera as follows; First, the conchospores of the species develop earlier and the period of its discharge is shorter than those of P. yezoensis; second, the microscopical buds discharge neutral spores which develop into new buds directly and buds develop repeatedly through a short period. Consequently, according to such above ecological characteristics, the species can grow thick on the 'Bal' exclusively. However, buds may disappear when they are harmed by disease such a 'infection by certain parasites or by other unusual environmental conditions. Thus P. yezoensis are enabled to grow on the 'Bal' instead of the former species since they not only develop later than the former but also macroscopical fronds discharge the neutral spore throughout the period from October to May. Likewise, if any disease appears in the culture-bed ill the later half of the period, the former is more severely damaged than the latter because the former have less resistance to the disease than the latter. Thus fewer frond survive and fewer carpospores which are the origin of the next generation can be discharged. However the latter by their nature can continue growing until early summer. In the case of the culture-bed where the above phenomenon occurs repeatedly P. yezoensis gradually may become the dominant species among cultivated Porphyra. In support of the validity of this process we find that according to the description and the plate of Wada (1941), P. tenera, P. yezoensis and P. kuniedai grow together in the culture-bed at the mouth of the Nakdong River where P. yezoensis occurs predominantly and mixed with P. kuniedai.

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총체맥류 분쇄기 개발 및 분쇄 총체맥류 사일리지의 품질 특성 (Development of Crushing Device for Whole Crop Silage and the Characteristics of Crushed Whole Crop Silage)

  • 이성현;유병기;주선이;박태일
    • 한국초지조사료학회지
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    • 제36권4호
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    • pp.344-349
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    • 2016
  • 본 연구에서는 주로 한(육)우, 낙농 등에서 이용되는 총체맥류 조사료를 돼지, 닭 등에게까지 확대 이용 가능성을 모색하기 위하여 수행하였다. 이를 위해 총체맥류를 분쇄할 수 있는 시스템을 개발하였고 분쇄시스템을 통해 분쇄한 총체맥류를 비닐 백에 밀봉 저장한 후 사료가치를 분석하였다. 총체맥류는 Fig. 4에서 보는 바와 같이 수확 직후 줄기, 잎, 곡실 등을 분리하지 않고 원형 그대로 분쇄장치에 투입하였다. 분쇄되어 배출된 총체맥류의 분쇄상태를 분석한 결과 알곡 20%, 10 mm 이상 4%, 5~10 mm 27%, 5 mm 이하 49%로 매우 미세하게 분쇄되는 것으로 나타나 단위동물의 배합사료에 일정비율 혼합하여 급이 하는 것이 가능할 것으로 판단되었다. 분쇄 직후 밀봉하여 상온에서 저장한 총체맥류 사일리지는 약 3개월이 지난 시점에서 품질을 분석하였다. 시험에 사용한 총체맥류는 새쌀보리와 금강밀이다. 분쇄된 총체맥류의 발효를 촉진하기 위하여 하나에는 발효제를 접종하였고 다른 하나는 발효제를 접종하지 않았다. 발효제를 접종한 분쇄 총체 새쌀보리의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.45%, 1.61%, 8.95%, 16.94%, 9.52%, 1.01%, 8.51%로 나타났으며 TDN, RFV는 81.38%, 447.5%로 나타났다. 발효제를 접종하지 않은 총체 새쌀보리의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.57%, 1.62%, 9.61%, 18.25%, 10.13%, 1.10%, 9.04%로 나타났으며 TDN, RFV는 80.90%, 412.9%로 나타났다. 발효제를 접종한 분쇄 총체 금강밀의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.43%, 1.27%, 10.99%, 19.49%, 11.23%, 1.46%, 9.77%로 나타났으며 TDN, RFV는 80.03%, 382.6%로 나타났다. 발효제를 접종하지 않은 총체금강밀의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.28%, 1.44%, 10.08%, 18.02%, 10.44%, 1.26%, 9.18%로 나타났으며 TDN, RFV는 80.65%, 416.9%로 나타났다. 발효제를 접종한 것과 발효제를 접종하지 않은 분쇄 총체맥류 사일리지의 상대적 사료가치를 평가한 결과 새쌀보리의 경우 발효제를 첨가한 것이 높았으며, 금강밀의 경우 발효제를 첨가하지 않은 것이 높은 것으로 나타났다. 따라서 총체맥류 분쇄 사일리지를 조제할 때 품종에 따라 발효제의 첨가 여부를 결정하는 것이 중요할 것으로 판단되었다. 또한 Ju 등(2009, 2011)의 TDN과 RFV를 비교 분석한 결과 발효제의 접종 여부와 관계없이 분쇄 총체맥류 사일리지의 TDN과 RFV가 월등히 높은 것으로 나타났다. 따라서 총체맥류 사일리지 조제시 수확${\rightarrow}$분쇄${\rightarrow}$밀봉의 과정을 거쳐 사일리지를 조제하는 것이 조사료 이용효율을 높일 수 있을 것으로 판단된다.

수도(水稻)에 처리(處理)된 유기수은제(有機水銀劑)의 잔류성(殘留性)에 관(關)한 연구(硏究) -제1보(第1報) 침지용유기수은제(浸漬用有機水銀劑)로 처리(處理)된 수도종자중(水稻種子中)의 수은잔류량(水銀殘留量)에 관(關)하여- (Studies on the Organo-mercury Residues in Rice Grain -I. Mercury residues in rice seeds treated with organo-mercury fungicide-)

  • 이동석
    • Applied Biological Chemistry
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    • 제8권
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    • pp.87-93
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    • 1967
  • acaricide로 알려진 phthalimidomethyl O,O-dimethyl phosphorodithioat (Imidan)을 수도(水稻)에 살포(撒布)했을 때 Imidan과 그 대사물질(代謝物質)이 식물(植物)의 생육(生育)에 미치는 영향(影響)을 연구(硏究)하기 위하여 본(本) 실험(實驗)을 하였으며 이의 결과(結果)를 요약(要約)해 보면 다음과 같다. (1) Imian의 대사물질(代謝物質)로 예상(豫想)되는 다음의 8가지 화합물(化合物)을 합성(合成) 또는 정제(精製)하여 공시약제(供試藥劑)로 사용(使用)하였다. (a) N-Hydroxy methyl phthalimide (b) Phalimide (c) Phthalamdic acid (d) Phthalic acid (e) Anthranilic acid (f) p-amino benzoic acid (g) p-hydroxu benzoic acid (h) Benzoic acid (2) 상기(上記) 물질중(物質中)에서 (a),(c),(d),(e)와 Imidan의 각(各) 10 ppm과 20 ppm 의 Buffer Solution 을 만들어 밀 종자(種子)를 가지고 coleoptile straight growth test를 해 본 결과(結果) Imidan 은 10 ppm 과 20 ppm에서 모두 control 보다 생장(生長)의 촉진효과(促進效果)를 보였으며 기중(其中) phthalamidic acid 10 ppm 이 가장 좋은 성적(成績)을 보였다. 이것으로 보아 Imidan 자체(自體)는 생장(生長) 억제(抑制)의 효과(效果)를f 보이나 이것이 일단(一但) 생체내(生體內)에서 가수분해(加水分解)를 비롯한 각종(各種) 대사작용(代謝作用)을 받으면 그 대사산물(代謝産物)이 식물생장(植物生長)을 촉진(促進)하는 효과(效果)를 보이는 것 같다. (Table 1, Fig. 1 참조(參照)) (3) xylene을 용매(溶媒)로 하여 Imidan 유제(乳劑)를 만들고 이것을 희석(稀釋)하여 20 ppm, 100 ppm 및 200 ppm 의 각(各) 농도(濃度) 유화액(乳化液)을 조제(調製)한 후 이것을 배지(培地)로 하여 수도종자(水稻種子)를 발아(發芽)시킨 후 12 일(日)에 shoot와 root의 길이를 측정(測定)하였다. 이의 결과(結果)를 보면 root는 Imidan 20 ppm에서, shoot 는 Imidan 100 ppm에서 모두 xylene만의 유제구(乳劑區)인 control 보다 좋은 효과(效果)를 보였으며 여기에서 흥미(興味)있는 것은 용매(溶媒)로 사용(使用)된 xylene은 수도종자(水稻種子) 뿌리의 발육(發育)에 심(甚)한 억제효과(抑制效果)를 보이는 것 같다. (Table 2, Table 5 참조(參照)) (4) 벼를 pot에 심고 2회(回)에 걸쳐 control, Imidan, N-hydroxy methyl phthalimide, anthranilic acid 및 phthalimide의 10, 25, 50, 100 ppm 농도(濃度)의 각(各) 유제(乳劑)를 살포하고 일정기간후(一定期間後) 생육상(生育相)을 조사(調査)하였더니 Imidan 구(區)와 N-hydroxy methyl phthalimide 구(區)가 control 보다 좋은 성적(成績)을 보였다. (5) Imidan 250 ppm 유제(乳劑)를 수도엽면(水稻葉面)에 살포(撒布)하고 3 일(日), 5 일(日), 7 일(日) 및 14일후(日後)에 일정량(一定量)의 엽경(葉莖)을 채취(採取)하여 acetone으로 추출(抽出)k고 acetonitrile을 가지고 prechromatographic piriication 을 거쳐 paper chromatography에 의(依)하여 다음과 같은 대사물질(代謝物質)을 검출(檢出)하였다. Imidan $(Rf:\;0.97{\sim}0.98)$, N-hydroxy methyl phthalimide (Rf: 0.87), phthalimide $(Rf:\;0.86{\sim}0.87)$, phthalamidic acid $(Rf:\;0.13{\sim}0.14)$, phthalic acid $(Rf:\;0.02{\sim}0.03)$, benzoic acid $(Rf:\;0.42{\sim}0.43)$ 및 p-amino benzoic acid 또는 p-hydroxy benzoic acid $(Rf:\;0.08{\sim}0.09)$와 Rf=0.73, 0.59, 0.33, 0.23, 0.07의 미지물질(未知物質)을 검출(檢出)하였다. 또한 3일(日), 5일(日) 등(等) 초기(初期)에서는 미분해(未分解)의 Imidan과 최초(最初)의 가수분해(加水分解) 산물(産物)인 N-hydroxy methyl phthalimide등(等)이 비교적(比較的) 다량(多量)으로 검출(檢出)되었으나 7일(日), 14일(日) 등(等) 후기(後期)에는 생체내(生體內)에서 더 많은 분해(分解)를 받아 상기(上記) 이성분(二成分)은 양(量)이 감소(減少)되고 phthalic acid, phthalamidic acid benzoic acid 및 p-hydroxy benzoic acid 또는 p-amino benzoic acid등(等)의 양(量)이 증가(增加)되는 것을 볼 수있었으며 도체상(稻體上)에 살포(撒布)된 Imidan 은 체내(體內)에 흡수(吸收)되어 14일(日)이 경과(經過)되면 대부분(大部分)이 분해(分解)를 받는 것으로 보여진다. 이상(以上)의 결과(結果)로 보아 Imidan은 자체(自體)로서는 식물생장(植物生長) 촉진작용(促進作用)이 없으나 식물체내(植物體內)에서 여러 가지 대사작용(代謝作用)(enzyme의 작용(作用))을 맡아서 각종(各種) phthaloyl 영향(影響)을 주는 것으로 생각(生覺)된다.

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