• Title/Summary/Keyword: early maturity

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Estimation of Rice Dry Matter Production by Spectral Reflectance of Solar Radiation in Paddy Field (태양광 반사율을 이용한 벼 군락의 건물량 추정)

  • 이정택;이춘우;주문갑;홍석영;김한명
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.3
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    • pp.255-262
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    • 1997
  • To estimate the total dry matter(TDM) of rice plant by non-destructive method, spectral reflectance from rice plant canopy was measured by using the spectroradiometer (LI-1800, LICOR Inc.) with one week interval during the rice growing season at Suwon paddy field in 1993. Two medium late maturing rices, Daechung-byeo Ilpum-byeo, and one early maturing variety, Jinbu-byeo, were cultured to observe TDM, then they were compared with those estimated by vegetation index together. Vegetation index determined by the reflectance of visible against near infrared wavelength showed high correlation with TDM. Vegetation index derived from narrow band(10nm interval) ratio, R910/R460, has the highest correlation coefficient with TDM. TDM estimated from R910/R460 from transplanting to heading stage corresponded well to measured values (Y=21.2428X-212.734 ; $R^2$=0.87). But another vegetation index, NIR(720~1,100nm) /Red(600~700nm) showed higher correlation with TDM than NIR(720~1,100nm) /Blue(400~500nm) did from heading stage to maturity.

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Cyclic variations of gonad development of an air-breathing fish, Channa striata in the lentic and lotic environments

  • Al Mahmud, Nasim;Rahman, Hassan Md. Hafizur;Mostakim, Golam Mohammod;Khan, Mohd. Golam Quader;Shahjahan, Md.;Lucky, Nahid Sultana;Islam, M. Sadiqul
    • Fisheries and Aquatic Sciences
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    • v.19 no.1
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    • pp.5.1-5.7
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    • 2016
  • The study was conducted to know the cyclic changes in gonadal maturation and to investigate the developmental stages of oocytes and testicular germ cells of an air-breathing fish, Channa striata. Fish were sampled monthly from lentic and lotic environments of three geographical locations of Bangladesh from December to November and the histological analysis of their gonad was done to evaluate the objectives. The highest mean GSI was $5.95{\pm}0.20$ for female in July and $0.14{\pm}0.01$ for male also in July showing that the gonadal development reached its peak during this month. The highest mean oocyte diameter was $1257.50{\pm}24.17{\mu}m$ observed in July implying that the oocyte reached maturity in this month. Histological study of ovary revealed the evidence of early yolk granule stage and late yolk granule stage from April to July. In case of male four stages of spermatogenesis were distinguished and spermatozoa were highly abundant in June and July. So the monthly pooled values of GSI and the analysis of gonadal histology indicated that the peak breeding season of C. striata occurred in July in the lentic and lotic environments. Samples collected from lentic and lotic habitats are suggestive of no difference in the development of the gonad. The results of the present study will be useful for selective breeding programme, conservation and sustainable fishery management of C. striata in its natural habitat.

THE STRUCTURE, STRATIGRAPHY AND PETROLEUM GEOLOGY OF THE MURZUK BASIN, SOUTHWEST LIBYA

  • JHO Jhoon Soo
    • 한국석유지질학회:학술대회논문집
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    • autumn
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    • pp.57-72
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    • 2000
  • The Murzuk Basin covers an area in excess of $350,000{\cal}km^2$, and is one of several intra-cratonic sag basins located on the Saharan Platform of North Africa. Compared with some of these basins, the Murzuk Basin has a relatively simple structure and stratigraphy, probably as a result of it's location on a the East Saharan Craton. The basin contains a sedimentary fill which reaches a thickness of about $4,000{\cal}m$ in the basin centre. This fill can be divided into a predominantly marine Paleozoic section, and a continental Mesozoic section. The principal hydrocarbon play consists of a glacial-marine sandstone reservoir of Cambro-Ordovician age, sourced and sealed by overlying Silurian shales. The present day borders of the basin are defined by tectonic uplifts, each of multi-phase generation, and the present day basin geometry bears little relation to the more extensive Early Palaeozoic sedimentary basin within which the reservoir and source rocks were deposited. The key to the understanding of the Cambro-Ordovician play is the relative timing of oil generation compared to the Cretaceous and Tertiary inversion tectonics which influenced source burial depth, reactivated faults and reorganised migration pathways. At the present day only a limited area of the basin centre remains within the oil generating window. Modelling of the timing and distribution of source rock maturity uses input data from AFTA and fluid inclusion studies to define palaeo temperatures, shale velocity work to estimate maximum burial depth and source rock geochemistry to define kinetics and pseudo-Ro. Migration pathways are investigated through structural analysis. The majority of the discovered fields and identified exploration prospects in the Murzuk Basin involve traps associated with high angle reverse faults. Extensional faulting occurred in the Cambro-Ordovician and this was followed by repeated compressional movements during Late Silurian, Late Carboniferous, Mid Cretaceous and Tertiary, each associated with regional uplift and erosion.

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Effects of Benomyl Applications on Phomopsis Infection and Yields in Vegetable Soybean (풋콩의 생육시기별 베노밀 처리가 미이라 감염율 및 수량에 미치는 영향)

  • 노재환;김율호;김홍식;김명기;이길복;김석동
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.3
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    • pp.299-305
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    • 1997
  • This study was conducted to investigate the effects of benomyl application at different growth stages on the infection of green pod and seed by Phomopsis spp. and yield in vegetable soybean. One early maturing vegetable soybean variety 'Seokryangputkong' was planted on 20 April at Suwon in 1996. The rate of non-infected green pods by Phomopsis spp. was most highly suppressed by benomyl application once at the R5 stage and twice at R4 and R6 stages. The rate of non-infected green pods was higher in branches than in mainstem, and in upper than in low part of plant. The Phomopsis seed decay at maturity was most highly decreased by benomyl application once at the R6 stage and twice at the R4 and R6 stages. Benomyl application effectively reduced the infection rate of green pod and seeds by Phomopsis spp. and increased the yield of non-infected green pods by 34∼76% and non-infected seeds by 51∼98%.

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Influence of the Word-of-Mouth Effect through SNS on the Movie Performance -Focused on the Case of <Sunny>- (SNS를 통한 구전 효과가 영화 흥행에 미치는 영향 -<써니>의 사례를 중심으로-)

  • Park, Sun-Young
    • The Journal of the Korea Contents Association
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    • v.12 no.7
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    • pp.40-53
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    • 2012
  • In the past, the elements that determine the movie performance were directors, movie stars, the number of opening screens, on-line ratings or distributing agencies. However, the word-of-mouth effect has changed this trends. So the influence of word of mouth grows more and more strong at this stage of the Internet and smart phones being widely prevalent. I fix my sight upon SNS which is one of the medium of arousing the word-of-mouth effect, and I have a purpose to cast light upon a real example of the influence of SNS on the movie performance. The way is to analyze SNS activities that accompany the process of production and showing of , which is said to have had an beneficial effect of SNS among the enormously successful movies last year. It is relevant to provide a new milestone regarding the movie performance through the successful case of SNS activities by examining the word-of-mouth activities through SNS in the manner of the period division of the pre-release, the early stage of release and the maturity.

A Case Study on Field Construction of Cold Weather Mass Concreting Using Double Bubble Sheets and Hydration Heat Difference Method (이중 버블시트 및 수화발열량차 공법에 의한 한중매스콘크리트의 현장적용 연구)

  • Kim Jong;Yoon Jae-Ryung;Jeon Chung-Keun;Shin Dong-An;Oh Seon-Gyo;Han Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.05a
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    • pp.15-18
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    • 2006
  • The test result of mat concrete applying both hydration heat difference and insulation curing method on new construction of Cheongju university educational building are summarized as following. Both fresh concrete and compressive strength properties were satisfied In aimed value. Setting time of concrete incorporating 15% of fly ash(FA) retarded 1.2 hour than control concrete. Temperature history of mali concrete indicated that the highest temperature of center was exhibited at $126^{\circ}C$ after 51 hours while the highest temperature of upper section was $10.6^{\circ}C$ after 46 hours. Temperature Difference between center and surface was managed at less than $6^{\circ}C$ during whole curing period. In addition the temperature of upper section secured more than $3.3^{\circ}C$ while the temperature of outside was indicated at less than $-10^{\circ}C$. Maturity by parts of construction secured more than $30^{\circ}C$ DD higher than outside at 3 days. The more number of times, applying insulation curing method by double bubble sheets, increased, the higher economic effect was secured. Overall it was clear that applying both double bubble sheets and hydration heat difference method on this new construction can resist hydration heat crack, early frost demage and strength decrease. It also significantly contributed quality improvement of cold weather concreting

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A Study on the Characteristics of Exhibition Space Design of the 'Museum of Unlimited Growth' by Le Corbusier (르 꼬르뷔제의 '성장하는 미술관' 개념의 전시공간디자인 특성 연구)

  • Suh, Swoo-Kyung;Hur, Bum-Pal
    • Korean Institute of Interior Design Journal
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    • v.15 no.6 s.59
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    • pp.213-220
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    • 2006
  • Le Corbusier (1887-1965) is known as a great architect ranking with such master architects as Frank Lloyd Wright and Mies van der Rohe who produced great architectural achievements in an era from the dawning to the maturity of the modem architecture. His works are marked for their peculiarity in expressing his architectural concept as perceived through his artistic sensibility. He has brought the form of his architecture to perfect through the influence of Purism. His architectural concept has instigated him to construct the relations between structure, form and the notion of space through the 'Dom-ino' structural system and the 'Five Principles of the Modem Architecture.' As a result, he has become such an architect as has ripened his works by adopting the 'Modulor' for human measurement. During the decade from 1929 to 1939, he made public the 'Museum of Unlimited Growth' programs in an attempt to give a concrete form to his concept of 'unlimited space' spreading to all directions, which was actually visualized by the constructions of three art museums, located Ahmedabad and Chandigarh in India and Tokyo in Japan. Although a number of researches have so far been publicized on the works and the architectural ideas of Le Corbusier, no systematic research has yet been released on the idea of 'Museum of Unlimited Growth' as a matter of fact. Therefore, this study has set its purpose to grasp the peculiarities of his exhibition space design through an analysis on the characteristics of the 'Museum of Unlimited Growth' so designed as to reflect the concept of a space, which is centrifugally growing. With this purpose in mind, this research is also to suggest how the design of the 'Museum of Unlimited Growth' would influence the modem museum exhibit space. The contents of this study comprise the consideration on the early ideas of Le Corbusier, the typical features of the growing museum and the analysis as well as the integration of his works.

Supplementary Effect by Harvest period of Lentinus edodes on the levels of Blood glucose and Serum lipid in Diabetic KK mice (채취 시기가 다른 표고버섯의 급여가 KK 당뇨 마우스의 혈당과 혈청 지질 수준에 미치는 영향)

  • Lee Sung Hyeon;Park Hong Ju;Cho So Young;Jung Hyun Jin;Cho Soo Muk;Lillehoj Hyun S.
    • The Korean Journal of Community Living Science
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    • v.16 no.1
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    • pp.105-111
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    • 2005
  • This study was carried out to investigate the effect of Lentinus edodes which were harvested at different times of maturity on blood glucose and lipid levels in diabetic mice. The diabetic KK mice were fed diets supplemented with Lentinus edodes harvested early (LE) or late (LL) for eight weeks, and control (CO) mice were fed regular diet without Lentinus edodes. Diet intake, body weight, organ weight, blood glucose and serum lipid levels were measured. The mice which were fed diets supplemented with LE and LL showed significantly lower body weights compared to the CO group. There were no significant differences in the diet intake and the weights of different organs including liver, heart, kidneys, and epididymal fat pad among three different groups. Furthermore, the concentrations of serum triglycerides and total cholesterol were significantly lower in LE and LL groups compared to the CO group. These results clearly demonstrate that Lentinus edodes, regardless of their harvested period reduced body weight and serum lipid without affecting blood glucose level in diabetic mice.

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Effects of Application Levels of Fertilizer on the Susceptibility to Bacterial Leaf Blight, Yield and Quality of Grains in Nineteen Rice Cultivars in Jeonnam Region (전남지방에 있어서 시비수준이 벼 품종별 백엽고병 감수성과 수량 및 미질에 미치는 영향)

  • Cha K.H.;Kim Y.S.;Kim H.J.;Lee D.K;Kim M.S.
    • Korean journal of applied entomology
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    • v.21 no.4 s.53
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    • pp.216-221
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    • 1982
  • This experiment was conducted in Jeonnam to investigate the effects of fertilizer amounts at two application levels on disease severity of bacterial leaf blight, yield and qualify of rice grains using nineteen rice cultivars. Incidence of bacterial leaf blight was more severe in the field with higher amount of fertilizer application. Disease severity was also different depending upon maturity of rice cultivars of early maturing group, however, the flag, second and third leaves were diseased in rice cultivars of medium late maturing group. Such differences were more obvious in the field with higher amount of fertilizer application than in the field with ordinary fertilizer application. Rice cultivars such as Taebaegbyeo, Hangangchalbyeo, Baegunchalbyeo, Palgwangbyeo and Milyang 42 were resistant whereas rice cultivars such as Milyang 30, Geumgangbyeo, Nagdongbyeo and Jinjubyeo were susceptible to bacterial leaf blight in both treatments. However, fertilization rate and percentage of ripeness were decreased resulting in heavy loss of yield. The rate of green-kerneled rice was increased resulting in poor qualify.

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Changes in Carbohydrate Components of Hard and Soft Wheat during Kernel Maturation (경(硬), 연질(軟質) 소맥(小麥)의 성숙(成熟)에 따른 탄수화물(炭水化物) 특성의 변화(變化))

  • Chang, Hak-Gil;Kyung, Kyu-Hang;Kim, Sung-Kon
    • Korean Journal of Food Science and Technology
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    • v.19 no.1
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    • pp.69-74
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    • 1987
  • These studies were conducted to investigate the changes in carbohydrate properties of the endosperm during the stages of maturity. Original moisture continued to decrease while 1,000-kernel weight and test weight increased steadily in all varieties with maturation. Starch content of the endosperm increased continuously by 35 to 40 days after heading. The B-type starch granules synthesis of the the early mature variety, Chokwang, was depressed at the later stages of development. Amylose and amylopectin components of starch both increased as the kernel matured, and amylose-amylopectin ratio also increased during the same period. Amount of pentosan per kernel basis increased throughout the maturation period. Amylograph break-down had a highly negative coefficient correlation with starch and pentosan content of endosperm. Results indicated that wheat maturation was characterized by an increase in the starch and pentosan content of the kernel.

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