• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.350-350
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• 2017

The study was conducted to evaluate differences of growth characteristics of rice cultivated in two different regions (Cheonan and Jeonju). It focused on nutritional composition and anti-nutritional factors of rice straw produced from 21 rice varieties including GM rice (Iksan 483). The range of general nutrition ingredient is that crude was 0.97 ~ 3.2 %, carbohydrate was 67.45 ~ 80.01 %, crude protein was 1.46 ~ 4.81 %, crude ash was 6.52 ~ 18.96 %, crude fiber was 25.77 ~ 40.02 %, NDF was 51.84 ~ 67.77 %, ADF was 27.11 ~ 40.44 %, calcium was 0.49 ~ 5.18 mg/g and phosphorous was 0.26 ~ 2.77 mg/g. The general nutritional contents of GM rice were included above range. The range of phytic acid of rice straws cultivated in Cheonan and Jeonju was 0 ~ 0.056 mg/ml and 0 ~ 0.059 mg/ml, respectively. The phytic acid content of GM was 0.033 mg/ml, which was in the range of the content of rice straw in Cheonan and Jeonju. The range of trypsin inhibitor of rice straws cultivated in Cheonan and Jeonju was 0.061 ~ 0.461 TIU/mg and 0 ~ 1.278 TIU/mg, respectively. The trypsin acid content of GM was 0.461 TIU/mg, which was in the range of the content of rice straw in Cheonan and Jeonju. In addition, we investigated microbial community from each soil sample by using metagenomics sequencing based on rRNA microbial diversity in order to inspect indirect changes of soil environment with cultivation of GM rice. Metagenomics analysis was carried out using soil samples cultivated with GM and non-GM rice for before transplanting, young panicle differentiation stage, heading stage, and ripening stage. Beta diversity of microbial community in both soil environments were calculated by using Bray-Curtis distance method and showed low value with an average of 0.24 (dissimilarity = 1). As a result, it was confirmed that the cultivation of GM does not give a significant effect on the change of microbial composition in soil. Therefore, Our study demonstrates that there is no difference in the composition of soil microorganism due to GM and non-GM rice.

• 한국유기농업학회지
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• 제23권1호
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• pp.31-42
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• 2015

This thesis has analyzed the determination factor for the crop insurance of rice focused on paddy rice. The analysis on each farmer has been used with integrated probit model & random effects probit model. It has shown in the analysis result of determination factor for buying the crop insurance of paddy rice farmer through integrated probit model & random effects probit model that the higher age, degree of education, cultivated area, and amount of received insurance money and the lower in a number of family member have revealed the higher possibility to buy the crop insurance in the integrated probit model. While the random effects probit model has shown a higher possibility to buy the crop insurance as the higher age, cultivated area, and amount of received insurance money.

• 한국식품영양학회지
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• 제22권4호
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• pp.701-707
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• 2009

This study was conducted to investigate the effects of Ge(germanium) treatment on rice quality. Rice samples were divided into the following treatment groups: control(CON: cultivated without Ge), Ge-1(cultivated with 200 kg of rough stone powder containing 1.6 mg/kg germanium per 10 ha), and Ge-2(cultivated with 500 kg of rough stone powder containing 1.6 mg/kg germanium per 10 ha). The mean total Ge level in the Ge-2 sample was 20.47 ppb. The levels of Ca and Na in the Ge-2 rice increased by 65.12 and 110.28%, respectively, when compared to the control, whereas the Zn, Mn, Fe, Mg and K content decreased by 11.44~30.50%. No significant difference in the percentage weight of C and O was observed among samples. The order of the percentage weight of P, S, and Cl was Ge-2>Ge-1>CON. The free amino acids were higher in samples from the Ge-1 and Ge-2 groups than in samples from the control. The GABA($\gamma$-aminobutyric acid) amount in the Ge-2 products was significantly high compared to other groups. The micro structure of Ge-2 showed a firmer network than the control and had a macroporous structure. Conversely, the Ge-2 products had higher scores for stickiness, hardness and overall taste when compared to the other groups. These results suggest that rice treated with rough stone powder containing germanium can be used in the production of commercially-desired functional rice.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2019년도 춘계학술대회
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• pp.185-185
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• 2019

• 한국식품영양과학회지
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• 제39권11호
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• pp.1684-1690
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• 2010

일반 멥쌀인 동진1호 품종으로 녹비작물인 헤어리베치를 이용하여 친환경 무농약 재배와 관행 재배한 쌀로 현미와 백미로 도정하여 수분흡수력, 이화학적 특성과 호화특성 및 밥의 관능평가를 실시한 결과 다음과 같다. 쌀알의 수분흡수력은 친환경 재배 쌀이 도정에 관계없이 모두 높았으며 단백질과 식이섬유는 친환경재배 쌀이 회분과 지방질은 관행재배 쌀이 더 높았고 현미가 백미보다 높았다. 총 전분함량, 물결합능력, 팽윤력은 백미가 현미에 비해 높았으며 재배방법에 따른 차이는 거의 없었다. DPPH에 의한 항산화 활성은 친환경재배 현미가 가장 높고 친환경 백미 관행재배 쌀순이었다. 쌀가루 호화액의 초기 호화온도는 현미보다는 백미, 관행재배보다는 친환경재배 쌀이 더 낮았고 피크 점도는 반대 경향을 보여 친환경재배 백미가 가장 높은 점도를 나타냈다. 밥의 관능평가 결과 관행재배와 친환경재배 모두 차이조사와 기호조사에서 유의적인 차이를 보이지 않았다(p<0.05). 이로부터 친환경재배 쌀의 가공적성이 더 좋은 가능성을 보이는 것으로 추정되며 밥을 지었을 때는 두 재배방법간 차이가 거의 없음을 알 수 있었다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.343-343
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• 2017

This study was conducted to investigate cropping system using paddy field in 152 cities and counties of Korea. Out of the 152 cities and counties, 106 regions responded(70%). The number of cultivated crops in 2 and 3 cropping system using paddy field was 48 crops. Among these, 35 crops were cultivated in winter and spring, 27 crops were cultivated in summer and fall. There were 33 crops in paddy field after cultivating rice. Among these, 11 crops were cultivated in spring and 26 crops were in fall-winter. There were 44 crops in paddy field without cultivating rice. Among these, 19 crops were cultivated in spring, 27 crops were in summer, 15 crops were in fall. Total cropping systems in Korea were 138 types, 2 cropping system were 119, among them outdoor crops were 77, using facility crops were 42, and 3 cropping system crops were 19. Cropping system of Jeonbuk province was 45 types and it was the most in Korea. Cropping systems of southern area were more various than those of middle-northern area in Korea.

• 한국작물학회지
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• 제53권3호
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• pp.261-272
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• 2008

본 시험은 국내 육성 향미자원과 외래 도입 향미 유전자원 및 국내 다면적 재래자원들의 농업적 형질특성을 비교하여 향후 우수한 향미 품종의 육성에 필요한 기초 자료를 제공하고자 실시하였으며,그 결과는 다음과 같다. 1. 공시재료는 104품종으로 국내자원 5품종 및 국내 다면적 재배 자원 14품종으로 모두 출수하였으나, 외래 도입자원 84품종 중 24품종(23%)은 출수하지 못하였다. 2. 평균 출수일은 통일계 국내자원(122일)이 빨랐으며, 자포니카형 국내자원이 136일로 늦었고, 도입자원(약 132일)과 다면적 재배자원(131일)과 비슷하였다. 평균 간장은 통일계 국내자원(74 cm) < 다면적 재배자원(97.5 cm) < 자포니카형 국내자원(100.3 cm) < 자포니카형 도입자원(120cm) < 인디카형 도입자원(130 cm) 순으로 길었다. 평균 수장은 국내 향미자원(21 cm)과 다면적 재배자원(21.5 cm)이 비슷하며, 자포니카형(24.5 cm)과 인디카형(29.5 cm) 도입자원이 국내자원보다 길었다. 평균 수수는 자포니카형 도입 자원(10개) < 통일계 국내자원(12개) < 인디카형 도입자원(14개) < 다면적 재배자원(15개) < 자포니카형 국내자원(19개) 순으로 많았다. 평균 1,000립중은 통일계 국내자원(23.6g)과 자포니카형 도입자원(23.5 g)이 자포니카형 국내자원(20.9 g)과 다면적 재배자원(21.9 g)이 비슷하였고, 인디카형 도입자원은 19.1 g이었다. 3. 벼의 생태형을 결정하는 립의 평균 장폭비는 인디카형도입자원(3.29) > 통일형 국내자원(2.52) > 자포니카형 국내자원 = 자포니카형 도입자원(1.81) > 국내 다면적 재배자원(1.7) 순이었다. 4. 임실률은 자포니카형 국내자원(100%) > 국내 다면적 재래종(98%) > 자포니카형 도입자원(89.7%) > 인디카형 도입자원(65.4%) > 통일형 국내자원(50%) 순으로 높았다. 평균 발아율은 국내자원(통일계, 98.3%; 자포니카형, 90.4%) 및 국내 다면적 재래종(자포니카형, 93.3%)이 도입자원(인디카형, 83.7%; 자포니카형, 88.6%)보다 높았으나, 변이폭은 도입자원이 컸다.현미의 형태적 특징은 찰벼는 7자원이며 메벼가 97자원(84.2%)이었다. 5. 국내자원 중 Hyangmibyeo2ho, Aranghyangchalbyeo가 중간 정도의 향을 띄었다. 인디카형 도입자원 40품종 중에서 22품종(55%)과 자포니카형 도입자원 16품종 중 9품종(56%)이 약한 향을 나타내었고, 국내 다면적 재래종은 13품종은 모두 향이 없었다.

• 한국작물학회지
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• 제41권4호
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• pp.395-404
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• 1996

본 연구는 직파재배시 문제가 되는 도복관련 형질의 품종간 차리를 구명하기 위해 벼 품종들의 생육특성을 조사한 결과는 다음과 같다. 1. 엽면적, 엽중, 경중 및 건물중 등은 출수기에 최대치를 보였으나 생육이 진전됨에 따라 감소하였고, 신근발생은 30일 묘에서 최고치를 보였으나 생육이 진전됨 에 따라 오히려 감소하였으며, 동진벼와 청명벼가 신근발생이 가장 양호한 품종이 었다. 2. 신장절간의 좌절시 모멘트는 제4절간의 모멘트가 950 gㆍcm로 가장 컸고 상위절간일수록 작았다. 3. 동진벼와 청명벼가 제4절간 좌절시 모멘트가 가장 커 도복에 가장 강한 품종이었다. 4. 간기중과 줄기 좌절시 모멘트간에는 r=0.825 고도의 유의성을, 도복지수와 간기중, 근중간에는 각각 r=-0.869 , r=-0.919 로 고도의 부의 유의성을 보였다.

• 한국초지조사료학회지
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• 제16권4호
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• pp.338-342
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• 1996

Fodder rye(cv. Coolgrazer) was cultivated on paddy soils under different application rates of animal manures (CM=cow manures mixed with sawdust, SM=swine manure mixed with sawdust) during 1994-1995. Rice crop (CV. Geumo) was transplanted in the same plots after fodder rye. The effects of cattle manure application on the yield performance of rye and their influence to growth, yields and quality of rice were evaluated. Fodder rye produced larger plant growth and higher silage yield in the cattle manure application than in the chemical feltilizer (CF). Dry matter yields of rye silage were 3.08 ton(CF), 4.23 ton(CM) and 6.03 ton/ha(SM), respedively. Under heavy application of cattle manures plant height, number of tillers and grains per panicle were increased, but 1,000 grains weight and total yields of rice were decreased. Yields of brown rice were 5.20 ton(CF), 5.15 ton (CM) and 4.95 ton/ha(SM), respectively. Higher concentration of amylose was found in the heavy application of cattle manures. Amylose contents of rice were 16.8%(CF), 19.1%(CM) and 19.4%(SM).

• 한국작물학회지
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• 제60권4호
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• pp.412-420
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• 2015

Even though phosphorus (P) is essential element for plant growth and development, it is not enough for crop production in soil. To breed more P deficient tolerance rice, screening and selection in rice population is needed. We tried to develop more simple and rough screening method for breeding of P deficient tolerance rice. In P deficient condition, tiller number was dramatically decreased among yield components in rice. Though this result, we confirmed tiller number could be the best marker in screening of P deficient tolerance rice. 480 rice genetic resources were cultivated in rice bed tray filled with P deficient soil for four weeks and each dry weight was measured. Among them, the 55 kinds of genetic resource were selected then cultivated in paddy field with 3 fertilizer conditions. Plant dry weight and tiller number in ripening stage were shown significant difference according to P condition. Plant dry weight and tiller number in ripening stage was highly correlated especially in P deficient condition. Furthermore, the tiller number in ripening stage and plant dry weight in rough screening were shown high degree correlation. Though these results, we might expect measuring of plant dry weight after cultivation in rice bed tray filled with P deficient soil could be a simple and effective screening method in selection of P deficient tolerance rice.