• 한국유기농업학회지
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• 제4권1호
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• pp.45-58
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• 1995

This paper studied production characteristics of organic farming products and analyzed management income and production cost of organic farming(rice). In order to analyze these points actually, this study was focused on pruduction activities of a producers' organization, Pulmoo Cooperatives in Hong-Dong Myun, Hong-Seong Region, Chung Nam Province. So the following results were obtained : In 1994, output level and an income rate of rice per unit area(10a) which was produced in organic farming method(O.F.M) was higher than those of general farming method(G.F.M) as about 5%, 7.4%. And management income size of the former was 1.8 times as large as that of the latter. But rice production cost of O.F.M was 1.93 times as much as that of G.F.M, particularily in labor cost and farming equipment cost, light and heat expenses, many other material costs. For the progress of organic farming O.F.M and equipmets should be developed much more, for example, the technics of prevetion against damages by blight and harmful insects and improvement of varieties, natural pesticides, agricultual application of microorganisim, construction of compost heat factory, etc. Since these technics and establishments have taken on the public goods, the development of those should be supported by government.

• Journal of Applied Biological Chemistry
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• 제58권4호
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• pp.355-361
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• 2015

The rice protein profiles of Oryza sativa L (Koshihikari) grown under organic and conventional cultivation regimes were compared on 2-D gels to develop diagnostic marker proteins for organic rice. The selected proteins, differentially expressed between organic and conventional rice, were compared with the differentially expressed proteins of another organic and conventional rice pairing, produced at a different location. In the first comparison among conventional, no-chemical, and organic rice grown in the same region, Korea, 13 proteins exhibiting differential expression in organic and conventionally grown plants were selected. Eight of the 13 proteins were down-regulated, and the 5 remaining proteins were up-regulated from conventional to organic rice. The second comparison pairing from Kyungju, revealed 12 differentially expressed proteins, with 8 down-regulated and 4 up-regulated proteins. Ten of the differentially expressed proteins that overlapped between the two comparison sets could not be clustered into any functional group using a functional annotation clustering tool. Further comparisons using another set of conventional and organic rice, belonging to a different variety of Oryza sativa L and produced in Sanchung, revealed 8 differentially expressed proteins, 5 of which were down-regulated and 3 of which were upregulated in the organic rice. Overall, 3 differentially expressed proteins were commonly found in all three organic rice crops. These 3 proteins, along with other overlapping differentially expressed proteins, can provide a good starting point for the development of signature proteins that can be used for the authentication of organic rice with a follow-up studies with more comparison sets.

• 한국식품조리과학회지
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• 제16권6호
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• pp.505-510
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• 2000

The purpose of this study was conducted to find out the housewives cognition and consumption pattern of Korean rice cake. The subject were 315 housewives lived in mainly the capital region(Seoul and Kyonggi-do). A survey questionnaire consisted of three parts including demographic backgrounds, cognition and consumption pattern of Korean Rice Cake. The results obtained would be summarized as follows; 1. Almost all of the housewives(95.9%) were cognized that Korean rice cake is a traditional food, but their cognition of the Korean rice cake as a important food in present dietary life(habits) was very low(22.5%). 2. Almost all of the housewives(94.0%) were cognized that Korean rice cake is a nutritional food and most of them(75.0%) were answered that there are below 50 kinds of Korean rice cake. 3. Although they could make themselves the Korean rice cake(75.9%), didn't make it at home and they were answered(59.4%) for the reason that the recipe for the Korean rice cake is hard. 4. The results of purchasing frequency rate showed that 62.2% of housewives were purchased one to two months and they were purchased most frequently on the birth day followed by a memorial sacrifice day, a festival day, visit and invitation of quest. 5. 98.4% of respondents were answered that the taste of Korean rice cake is good and 96.5% of them were cognized that its price is expensive. 6. The most preferred kinds of Korean rice cakes showed that Red bean Sirudock, Baekseolgi, Injeolmi, Songpyeon, Yaksik etc.

• 한국환경복원기술학회지
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• 제16권1호
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• pp.147-157
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• 2013

Rice is a main crop and rice field is the most important farmland in Korea. This study was conducted to propose the methodology assessing impact and vulnerability on rice production by climate change at the regional and national level in Korea. We evaluated a vulnerability of rice paddy according to the outbreak of a main disease and pest of a rice plant. As results, Jeju-do, Gyeongsangnam-do, and Jeollanam-do were more vulnerable area than others. In contrast, the southern central region including Gyeonggi-do was less vulnerable than others. The vulnerable index was significantly higher in 2050s (0.5589) than in present (0.3500). This result showed that the vulnerable to the disease and pest enlarge in the future. The adaptive capacity highly contributed to the vulnerability assessment index. The daily maximum temperature of June and the daily average temperature from May to August also contributed the climate exposure index. The area of occurring sheath blight, rice leaf blast and striped rice borer was related to the system sensitivity index. The ability of water supply (readjustment area of arable land per paddy field area) and rice production technique (rice yield per hectare) were the highly contributed variables to the adaption capacity index.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.286-286
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• 2022

The properties of starch play an important role in determining the palatability of rice. In addition, the gelatinization temperature (GT) of rice starch is an important factor in determining the quality of rice because it is related to the cooking time and texture of rice. For the development of high-quality rice, it is important to understand the genetic basis of palatability-related traits, and QTL analysis is an effective method to explain the genetic basis of variation in complex traits. QTL mapping related to alkali digestion value (ADV) of brown and milled rice was performed using the 120 Cheongcheong/Nagdong double haploid (CNDH) line. As a result, 12 QTLs related to ADV were detected, and 20 candidate genes were selected from the RM588-RM1163 region of chromosome 6 through screening by gene function analysis. The comparison of the relative expression level of candidate genes showed that OsSS1q6 is highly expressed in CNDH lines with high ADV in both brown rice and milled rice. In addition, OsSS1q6 has high homology with starch synthase 1 protein, and interact with various starch biosynthesis-related proteins, such as GBSSII, SBE, and APL. Therefore, we suggest that OsSS1q6 identified through QTL mapping could be one of the various genes involved in the GT of rice by regulating starch biosynthesis. This study can be used as basic data for breeding high-quality rice and provides a new genetic resource that can increase the palatability of rice.

• 한국토양비료학회지
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• 제29권3호
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• pp.270-274
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• 1996

호남지방(湖南地方) 논 토양의 유효인산함량(有效燐酸含量)과 벼 무논골뿌림 재배시 인산시용방법별(燐酸施用方法別) 괴불발생정도(發生程度)와 수도(水稻) 수량성(收量性)을 구명(究明)하기 위하여 '94-'95년까지 연구한 결과(結果) 지대별(地帶別) 유효인산함량(有效燐酸含量)은 노령 동서(東西) 내륙지대(內陸地帶) 및 호남(湖南) 내릉지대(內陵地帶)에서 가장 높았고 차령 남부(南部) 평야지대(平野地帶)에서 가장 낮으며 지형별(地形別) 유효인산함량(有效燐酸含量)은 하성평탄지(河成平坦地)에서 가장 높았고 홍적태지(洪積台地)에서 가장 낮았다. 전북통(全北統)의 무기태(無機態) 인산(燐酸) 형태별 함량은 Ca-P이 가장 많았고, Fe-P, Al-P 순위(順位)를 보였다. 인산시비방법별(燐酸施肥方法別) 괴불발생(發生)은 기비(基肥) 100%시용구(施用區)와 70%구(區)에서 많았으며 인산무시용구(燐酸無施用區)와 3엽기(葉期)에 100% 시용(施用)한구(區)에서 가장 적었고 하해혼성(河海混成) 평야지(平野地)의 보통답(普通畓)에서 수도(水稻) 1모작시(毛作詩) 인산적정시용량(燐酸適正施用量)은 ha당 21kg였으며 인산시비방법별(燐酸施肥方法別) 쌀 수량(收量)은 관행(慣行) 시비량(施肥量)의 50%를 기비(基肥)로 시용시(施用時) 6%의 증수(增收)를 보였다.

• 한국토양비료학회지
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• 제42권Spc호
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• pp.4-7
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• 2009

카드늄에 의해 오염된 토양을 접하는 것은 급격한 산업발달에 의해 아시아에서는 흔한 일이다. 그래서 시민과 관련 당국은 식량작물 소비에 따른 카드늄노출의 위험성에대한 관심을 가지고 있다. 본 개관에서는 전세계 카드늄 소화기관내 흡입과 식품에 근거한 식물에 포함된 카드늄농도에 대한 최근 자료가 모두 제시 되었다. 일반적으로 일용필수품에 근거한 주요 식물에 존재하는 카드늄의 농도는 생체중으로 비교 시 kg 당 0.05mg를 거의 초과하지 않으며 곡류, 두류, 채소, 구근류, 과채류 순으로 감소하였다.

• Journal of Plant Biotechnology
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• 제45권1호
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• pp.17-29
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• 2018

본 연구에서는 국내외에서 수집한 벼 294개 유전자원 핵심집단을 대상으로 벼의 지엽각 특성에 대한 조사를 수행하였고, GWAS를 이용하여 지엽각 연관 유전자를 추출 및 분석하였다. 표현형 데이터를 이용한 GWAS의 Manhattan plot 결과 분석을 통해, 각 집단에서 염색체를 대상으로 표현형과 통계적 유의성을 나타내 연관성을 보이는 SNP를 발굴하였다. 지엽각 관련 특성에 대하여 선행 연구된 QTL region과의 비교를 통하여 본 연구에서 발굴된 SNP간의 유의성을 조사한 결과, 지엽각과 유의성이 있는 SNP (S8-19815442)가 이미 확인된 QTL region에 위치하는 것으로 나타났으며, 후보유전자 Os08g31950 대해 연관 유전자 변이를 관찰하기 위해서 형질 특이적 품종군 간의 염기서열을 비교한 결과 1개의 지역에서 단일염기변이가 검출되었다. Os08g31950의 조직별 RNA의 상대적 발현량 수준을 비교한 결과, Os08g31950 유전자는 모든 조직에서 높은 발현량을 확인할 수 있었으며 조직별로 다양한 발현 양상을 관찰할 수 있었다. 또한, 모두 직립형 품종군에서 상대적으로 발현량이 높게 나타났으며 뿌리보다 잎에서의 발현율이 높게 나타났다. 본 연구를 통해 동정된 지엽각 연관 후보유전자 Os08g31950는 벼 생육 및 수량 증대에 이용할 수 있는 마커제작 및 육종의 기초자료가 될 것으로 기대된다.

• 한국초지조사료학회지
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• 제41권2호
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• pp.141-146
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• 2021

본 시험은 중부지역 논에서 동계 사료작물인 이탈리안 라이그라스와 하계 사료작물을 연계하여 연간 생산성 및 사료가치를 비교하기 위하여 수행하였다. 동계 사료작물인 이탈리안 라이그라스는 코윈어리 품종을 사용하였고, 하계 사료작물로 사료용 벼(영우)와 사료용 피(제주)를 이용하였다. 각각의 작물은 표준재배법을 이용하여 재배하였다. 이탈리안 라이그라스의 평균 초장은 90.6 cm, DM 수량은 7,681 kg/ha, CP 함량은 9.2%, TDN 함량은 63.8%였고, 하계 사료작물에 따른 차이는 나타나지 않았다. 하계 사료작물의 초장은 사료용 피가 사료용 벼 보다 높았고, 유의성이 인정되었다. 하계 사료작물의 DM, CP 그리고 TDN 수량은 사료용 벼가 사료용 피 보다 유의적으로 높게 나타났다. 하계 사료작물의 사료가치 또한 사료용 벼가 사료용 피보다 높게 평가되었다. 이상의 결과를 종합하여 볼 때 중부지역 논에서 사료작물 이모작 재배 시 동계 사료작물인 이탈리안 라이그라스와 연계한 하계 사료작물로써 수량성과 사료가치가 높았던 사료용 벼가 활용성이 높을 것으로 판단된다. 또한 노동력 절감 및 안전성 재배 측면에서 볼 때 사료용 피도 활용 가능성이 있을 것으로 사료된다.

• The Plant Pathology Journal
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• 제24권4호
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• pp.469-473
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• 2008

We have previously obtained a representative isolate KU101 of the predominant Penicillium species from rice under indoor storage conditions. In this study we attempted to characterize isolate KU101 using its morphological and molecular characteristics. When the micro- and macroscopic characteristics of isolate KU101 were compared with the P. islandicum reference isolate KCCM 34763, isolate KU101 was generally identical to those of isolate KCCM 34763, however, isolate KU101 grew faster and produced more orange to red pigments than isolate KCCM 34763. In a molecular-based identification, the nuclear sequence of the ITS1-5.8S-ITS2 region of isolate KU101 was most closely related to that of P. islandicum. Therefore, these results indicated that isolate KU101 from stored rice could be identified as P. islandicum, some isolates of which are known to produce mycotoxins.