• 한국유기농업학회지
• /
• 제26권4호
• /
• pp.629-647
• /
• 2018

1. 유기재배구의 토양조건은 배수가 약간 불량한 미사질 양토인 전북통 보통답으로 유효규산이 높은 것을 제외하고는 우리나라 논토양의 화학적 성분과 평균 함량이 유사하였다. 2. 관행재배구와 유기재배구 간에 생육은 초장, 분얼수, 이삭수, 이삭길이 모두 관행재배구에서 높은 것을 확인하였으며 이삭당 입수와 등숙율은 유기재배구에서 다소 높게 나타났다. 3. 병해충 발생정도는 물바구미, 잎집무늬마름병, 혹명나방, 도열병이 유기재배구에서 많이 발생하였고, 이삭누룩병은 관행재배구에서 조금 더 많이 발생하였다. 4. 주요 관리대상 병해충인 잎집무늬마름병(y=-0.2848x+199.57, $R^2=0.704^*$), 혹명나방 발생(y=-0.1361x+92.535, $R^2=0.8049^*$)과 쌀 수량과의 관계에서 유의성이 높은 부의 상관관계가 나타났다. 5. 백미 품질은 유기재배구에서 파쇄미의 증가로 완전립 비율이 낮았지만, 단백질함량이 관행재배구에 비해 낮아 전반적인 품질 및 윤기치가 높아졌다. 6. 쌀 재배 순수익은 관행재배구에서 36만원/10a, 유기재배구에서 61만원/10a로 유기재배구의 순수익이 68% 높게 나타났다.

• 대한가정학회지
• /
• 제32권1호
• /
• pp.165-180
• /
• 1994

The change in the police concerning food and dietary life were analyzed in order to provide bases of establishing policy of food and dietary life properly. The last half one century was divided into six periods as follows ; The period since liberlation from Japanese rule(1945-1949) the 1950's (1950-1959) 1960's (1960-1969) 1970's (1970-1979) 1980's (1980-1989) 1990's (1990-1992). Dietary life by 1960's were a life of distress and policies coducted by government took on an relief supply of food at this period. Movement about 'intake of mixed rice with barley and foods from flour' to supress rice consumption were encouraged by government. And Korean recommended dietary allowance was made and the national nutritional survey was practived in the first place by the Ministry of Health and Social Affairs. Dietary life of the country begin to improve sharply along with rice self-sufficiency since 1975 With the growth of food and eating out industry intake of instant food processed food and fast food has increased at the 1980's To ministry of Health and Social Affairs drove campaign of 'Joo-Moon Sik Dahn Je' for dietary life improvement at 1981 The Ministry of Education made and announced a 'School Feeding Law' at 1981 The government that is the Office of Permier and the Ministry of Health and Social Affairs developed compaign for improvement of dietary life and drove 'Jo Eun Sik Dahan Je' with Association of restaurant jointly. Policy on food and dietary life conducted by government up to data were planned mainly dependent on food production supply and demand of food. Infectious diseases continue to decrease with increasing of degenerative diseases which will be required proper management of dietary life. In the future more aggressive intergrated food policy are needed to maintain the public health. Aoso dietary improvement movement should be drived actively.

• 한국육종학회지
• /
• 제43권5호
• /
• pp.413-421
• /
• 2011

본 연구에서는 관행의 교배육종과 DNA 마커를 이용한 MAS의 접목을 통하여 벼멸구 저항성과 관련된 단점을 보완하고, 효율적으로 도열병, 줄무늬잎마름병, 흰잎마름병, 벼멸구, 끝동매미충 저항성이 집적된 복합내병충성 우량계통을 육성하고자 수행하였다. 교배모본으로는 완전미율이 높고, 끝동매미충에 저항성인 '남평'과 단간이면서 흰잎마름병에 저항성인 '주남'을 반복친으로 사용하였고, 벼멸구저항성 유전자 Bph1을 가지고 있지만 간장이 크고 재배안전성이 미흡한 '밀양220호'를 공여친으로 사용하였다. 벼멸구 저항성 연관마커 RM28493을 이용하여 $BC_1F_1$ 및 $BC_2F_1$ 세대에서 MAS로 저항성 개체 선발과 여교잡을 수행하였으며, 복교잡 $F_1$ 세대에서 MAS를 통한 벼멸구 저항성이 고정된 계통을 선발하였다. 고세대 계통에서 생물검정을 통하여 흰잎마름병, 끝동매미충에 저항성인 계통을 선발하였다. MAS와 생물검정을 통해 도열병, 흰잎마름병, 줄무늬잎마름병, 벼멸구 및 끝동매미충에 저항성인 85개의 복합내병충성계통을 선발하였다. 복합내병충성 계통의 간장, 완전미율 및 수량은 각각 71~88 cm, 51~93%, 449~629 kg/10a 사이에 분포하였다. 복합내충성계통중 간장, 완전미율 및 수량이 남평벼와 비슷한 계통을 선발하여 '밀양265호'로 명명하였다. 최종적으로 본연구에서는 기존의 교배육종과 분자육종의 접목을 통하여 복합내병충성 우량계통을 육성하였으며, 이는 금후 유용교배모본으로 활용될 것으로 기대된다.

• 한국응용곤충학회지
• /
• 제22권2호
• /
• pp.130-137
• /
• 1983

A wide variety of pathogens are known io be seedborne, carried either as infectious mycelium internally or as contaminants on the seed coat. When seed is infected with a pathogen, the seed nay be rendered nonviable or it may remain viable but produce weak seedling. In some cases, the Infected seedling nay not be severely weakened, but nay serve as a source of primary inoculum within a community of plants. A recent problem nay be the dissemination of seedborne pathogens occurring as a result of the massive movements of seed, as a part of the 'Green revolution' Disease of great danger to agriculture may be introduced with seed from other parts of world. Seed treatment with organic mercury compounds in liquid form had become popular since about 1955. Organic mercury compounds contributed considerably to the increase in production of many crops and vegetables. In 1975, however, the use of organic mercury compound was forbidden because of doubts regarding their residual mammalian toxicity in agricultural products. Benomyl-thiram mixture, thiophanate methyl-;hiram mixture and TCMB have now been registered as seed disinfectants for the use of rice blast, brown spot and Bakanae disease. Oxathiinsthiram mixture has been registered as seed disinfectant for barley and wheat loose smut and leaf stripe of barley. Agricultural techniques have made such rapid progress that the nursery methods changed from the use of paddy nursery to box nursery designed for machine-transplanting. The spread of rice transplanting machines has caused increase of seedborne diseases. Among seedborne diseases, Bakanae disease has remarkably increased and causes much damage recently. In order to counter this trend, seed disinfectants must also be diversified. First, effective non-selective disinfectants need to be developed, and second, appropriate control methods always need to be prepared in parallel with the development of new techniques for cultivation.

• The Plant Pathology Journal
• /
• 제24권3호
• /
• pp.317-321
• /
• 2008

In a search for plant extracts with in vivo antifungal activity for plant diseases, we found that the methanol extract of Myristica malabarica fruit rinds effectively suppressed the development of several plant diseases. The methanol extract exhibited potent 1-day protective activity against rice blast, tomato late blight, wheat leaf rust and red pepper anthracnose. It also showed 7-day and 4-day protective activities against the plant diseases. Three antifungal resorcinols were isolated from the methanol extract of M. malabarica fruit rinds and identified as malabaricones A(MA), B(MB), and C(MC). Inhibitory activity of the three resorcinols against mycelial growth of plant pathogenic fungi varied according to compound and target species. All three compounds effectively reduced the development of rice blast, wheat leaf rust and red pepper anthracnose. In addition, MC was highly active for reducing the development of tomato late blight. This is the first report on the antifungal activities of malabaricones against filamentous fungi.

• The Plant Pathology Journal
• /
• 제26권1호
• /
• pp.70-79
• /
• 2010

Rice blast is one of the serious devastating diseases. This study was carried out to determine the genetic diversities of blast resistance (R) genes form 86 accessions of aromatic rice with eight SNP markers, z4792, zt4792, z60510, zt6057, k6415, k6411, k39575 and t256, which showed the close-set linkage to 6 major genes, Piz, Piz-t, Pik, Pik-m, Pik-p, and Pit. Four accessions of indica type, Mayataung, Yekywin Yinkya Hmwe, Basmati9-93, and Basmati5854, showed the positive amplicons of six major genes. Among 86 accessions, 83 accessions were detected both or one of Piz and Piz-t genes. Seventy three accessions contained the Piz gene with z4792 marker. In addition, 30 and 71 accessions possessed Piz-t gene with zt4792 and zt6057 markers, respectively. Ten accessions showed the positive bands for the Piz-t gene with both zt4792 and zt6057 markers. Only one accession, Khau Nua Keo, was not amplified for both Piz and Piz-t gene. But japonica type, Gerdeh, possessed only Piz gene between Piz and Piz-t. Fifty two accessions showed the three of Pik multiple genes and Pit gene. Four accessions, Iari7447, Daebunhyangdo2, Shiyayuuine, and Basmati 6129 possessed a Pik-p gene. Especially, Pit gene on chromosome 1 was detected with t256 marker in all of 83 accessions, exception of A-2, one accession of japonica type.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2017년도 9th Asian Crop Science Association conference
• /
• pp.138-138
• /
• 2017

Agriculture is the most primitive civilized Activities of mankind but also the propellant of civilization development. Because it is the most basic material goods source of mankind. Among these materials rice is one of the most important part of these, we call them the substance of survival. From the beginning of the agricultural activities to the present we have experienced three industrial revolutions and are experiencing the Fourth Industrial Revolution. With the development of science and technology makes the efficiency of agricultural production is higher and higher, but compared with the original we are facing the same problem: natural disasters; pests and diseases; now also face the depletion of resources, environmental degradation and other issues. Therefore, improve and cultivate new crop varieties to make it better resistance and more production for better develop modern agriculture. It's very helpful for human social development. And also it is the responsibility and task of modern molecular breeding. In this study, I used bacterial leaf blight to find a better resistance gene to improve the resistance of rice. Frist Cultivate k3 of bacterial leaf blight, than inoculation by leaf clipping method (Kauffman,1973) in CNDH and SNDH population at 40days after rice transplanting. Check the lesion length by inoculation plants at 14days after inoculation, and record data for QTL analysis program. Than I get 4 intervals in 3 different chromosomal regions. I found these defense genes in the 4 intervals. So I used NCBI Justbio, Rapdb, etc. to finding these genes in physical map, than design primer for map base cloning. At last these defense genes will be employed in further research for introduction of the gene to the parental plant and rice breeding for solving food crisis.

• 대한예방한의학회지
• /
• 제17권1호
• /
• pp.125-135
• /
• 2013

Objectives : Medical treating with eating foods is one of important therapies in East Asian traditional medical knowledge and is referred as a therapy to treat diseases through foods. Since the food cannot be separated from ordinary people living, the medical treating with eating foods is a therapy with strong locality and contains many autogenous parts. Methods : Recently, the world is showing much interest for genetic resources, and the concept of intellectual property is rapidly expanding as the field of 'new knowledge property right' as well. Thus, the knowledge of medical treating with eating foods recently draws much attention in the economic aspect beyond the scholarly interest for traditional medicine. Here, I would like to summarize and report the contents related to medical treating with eating foods on "Yi, SeikKan experience prescriptions" which was discovered before. Results & Conclusions : First, medical treating with eating porridge on "Yi, SeikKan experience prescriptions" is classified into one with nonglutinous rice as the main ingredient and the other with other grains as the main ingredient. It is differently utilized depending on the nature of the grain. Second, medical treating with eating rice on "Yi, SeikKan experience prescriptions" was born from our nation's unique way of living and is classified into one way to eat rice mixed with ground medicinal herbs, another one to cook and eat rice with mixed grains and the other way to use as the external application. Medical treating with eating rice is assumed to replace the meal. Third, "food section" was given separately and discussed in this book. There were some parts different from existing medical knowledge due to the accumulation of experience using medicinal herbs. Fourth, we should pay attention to experience a book on medicine where vibrant medical information has been recorded in order to discover and process our traditional knowledge resources as a useful form.

• The Plant Pathology Journal
• /
• 제28권4호
• /
• pp.357-363
• /
• 2012

Several species belonging to the Gibberella fujikuroi species (Gf ) complex are commonly associated with rice and corn, not only causing serious diseases, but also producing fumonisins, a group of mycotoxins harmful to animals and humans. To characterize the population structure of the putative fumonisin-producing Gf complex in Korea, we obtained 276 candidate isolates from rice and corn harvested in 2009 and 2010 by diagnostic polymerase chain reaction with several specific primer sets. Phylogenetic trees were constructed using multilocus sequences (combined RPB2 and EF1A, totaling 1.6 kb) from these isolates. Among the 135 isolates from rice, F. fujikuroi (teleomorph: G. fujikuroi; 59.3%) and F. proliferatum (G. intermedia; 13.3%) were predominant, followed by F. concentricum (5.9%). Additionally, twenty-five (18.5%) rice isolates belonged in a distinct subclade of F. commune, a non-member of the Gf complex. In contrast, F. verticillioides was the most predominant species (38.3%) among the 141 corn isolates, and followed by F. fujikuroi (27.7%), F. proliferatum (14.9%), F. subglutinans (7.1%), and F. concentricum (2.8%). A single mating type (MAT1-1) was found predominantly among the Gf complex isolates examined. Possible distinct subclades were detected within the populations of F. fujikuroi and F. proliferatum; however, this needs further confirmation. This is the first reported population-level characterization of putative fumonisin-producing Gf complex associated with rice and corn in Korea.

• 한국식품영양과학회:학술대회논문집
• /
• 한국식품영양과학회 2001년도 International Symposium on Food,Nutrition and Health for 21st Century
• /
• pp.61-68
• /
• 2001

Soybean, rice and nuts are the staple foods in South East Asia. In order to clarify the function of these foods in relation to coronary heart diseases, we have done a series of experiments using animals and humans. Soybean protein preparations (SPI) in comparison with an animal protein, casein (CAS), resulted in reducing atherosclerotic lesion development in apolipoprotein (apo) E deficient mice that develop an advanced lesion similar to that in humans. This action was attributed to the protein, since the ethanol-extracted SPI (EE-SPI), from which isoflavones and saponins removed, lowered the lesion development in apo E-deficient mice. However, The EE-SPI, compared to the SPI, resulted in a decrease of mRNA for key proteins of cholesterol metabolism (low density lipoprotein receptor and cholesterol 7$\alpha$-hydroxylase) in hypercholesterolemic rats, followed by an elevation of the serum cholesterol level, indicating a contribution of isoflavones to the serum cholesterol level. Rice protein (RPI) was also effective to lower the lesion development in apo E deficient mice. Both the SPI and RPI led to an increased level of the serum NOiN03, metabolites of NO. This effect appeared to be attributed to their high content of arginine. Besides, C57BL/6J mice fed a diet containing whole grain rice had an elevation of the serum high-density lipoprotein cholesterol. Furthermore, rice bran oil and the unsaponifiable fraction that is rich in plant sterols were effective to lower serum cholesterol levels in hypercholeserolemic rats. Finally, we tested if walnuts consumption would be hypocholesterolemic for Japanese. A diet containing walnuts effectively lowered the serum total and low density lipoprotein cholesterol in Japanese men and women. These animal and human experiments would be relevant to advocate publics to keep consuming diets including soybean, rice and nuts for their healthful life.