혹명나방 피해 정도에 따른 벼 수량 및 미질 반응

원종건,안덕종,김세종,최충돈,이상철 韓國作物學會 2008 Korean journal of crop science Vol.53 No.5

This study was carried out to determine the response of the rice yield and grain quality by rice leaf folder (RLF, Cnaphalocrocis medinalis G.) and identify the damages caused by different transplanting dates, nitrogen amounts and chlorophyll amounts (SPAD value) of rice leaf. As the damage degree of RLF was getting severer, the ripened grain rate and 1000-grain weight were decreased and due to the increasing of chalky rice rate the rate of head rice was reduced. Therefore, the yield of head rice was decreased by 36% in heavily damaged rice plant. Among the physicochemical characteristics, protein content of rice grain was increased but amylose content was reduced, consequently, the palatability was deteriorated in heavily damaged rice by RLF. The degree of damage of RLF was getting serious as transplanting date was delayed and as the amount of nitrogen was increased. In the relationship between the SPAD value and the damage degree of RLF, as the SPAD value was increased by nitrogen fertilizing, the damage degree was also increased exponential functionally.

국내산 브랜드 쌀과 중국산 찐쌀의 품질 비교 분석

원종건,안덕종,김세종,박소득,최경배,이상철,손재근 한국작물학회 2005 한국작물학회 학술발표대회 논문집 Vol.2005 No.-

경북의 지역 및 연차간 쌀 품질 변이

원종건,이선형,최장수,안덕종,박소득,손재근 한국작물학회 2005 한국작물학회 학술발표대회 논문집 Vol.2005 No.-

일품벼 도정 및 쌀 품질 향상을 위한 분시비율 개선연구

원종건,안덕종,김세종,최충돈,이상철 韓國作物學會 2008 한국작물학회지 Vol.53 No.5

일품벼에서 많이 발생되고 있는 분상질미를 경감시켜 외관상 품위 및 도정수율을 향상시키고, 쌀의 단백질 함량을 줄여 품질을 향상시킬 수 있는 재배방법을 개발코자 질소 분시비율을 조정하여 시험한 결과는 다음과 같다. 1. 최고 분얼기의 경수는 기비와 분얼비의 영향을 많이 받았으며 엽면적지수 또한 같은 경향을 보였으나, 출수기의 경수 및 엽면적 지수 등은 수비의 영향을 많이 받았다. 2. 수량 및 수량구성요소는 대체로 수비의 영향을 많이 받아 수장, 영화수, 백미 수량 등은 수비 시비량의 증감과 일치하는 경향이었다. 3. 쌀의 이화학적 특징은 단백질 함량이 수비 시비량이 많을수록 높아졌고, 특히 분상질미, 피해립이 차지하는 비율이 현저히 높아져 완전미율은 낮아지는 경향이었다. 4. 따라서 쌀의 외관상 품위 및 도정 특성은 총질소 시비량이 동일할 경우 수비의 시비량을 50% 감비하여 시용한 구에서 향상되었으며, 완전미 수량도 높았다. This study was carried out to improve the rice grain quality of Ilpum cultivar, especially to reduce the chalky rice rate by controlling top dressing of nitrogen application ratio at the tillering and panicle initiation stage. In the rice plant growth, the number of tiller and leaf area index of maximum tillering stage were influenced by basal dressing and top dressing at tillering stage; however those of heading stage were mainly influenced by top dressing at panicle initiation stage. In yield and yield components, they were influence by the top dressing at panicle initiation stage and the rice yield was increased by percentage of the top dressing. The protein content of rice grain was increased as the rate of top dressing at panicle initiation stage was increased. The rate of chalky and damaged rice was remarkably increased as the top dressing ratio was increased, resulting in reducing the rate of head rice rate. As the results, the characteristics of milling and rice quality was improved when the amount of top dress was reduced as 50% at the panicle initiation stage, and the yield of head rice also increased.

벼 만식재배시 묘령이 수량 및 품질에 미치는 영향

원종건,안덕종,김세종,최충돈,이상철 한국작물학회 2008 Korean journal of crop science Vol.53 No.-

This study was conducted to compare the yield and grain quality as affected by rice seedling age in late transplanted rice. The rice yield was remarkably reduced in 10 day-old seedlings but those of older seedlings over than 30-day were not different. In the rice quality, as the rice seedling age younger the rate of greened and damaged rice increased, suggesting decreasing of the head rice rate. Among the physicochemical characteristics, protein content of rice grain was increased in 10 day-old seedling but amylose content was not different, consequently, the palatability was improved in older seedlings over than 30-day. From these results, it is more beneficial to machine transplant the older seedlings over than 30-day for delayed transplanting. This study was conducted to compare the yield and grain quality as affected by rice seedling age in late transplanted rice. The rice yield was remarkably reduced in 10 day-old seedlings but those of older seedlings over than 30-day were not different. In the rice quality, as the rice seedling age younger the rate of greened and damaged rice increased, suggesting decreasing of the head rice rate. Among the physicochemical characteristics, protein content of rice grain was increased in 10 day-old seedling but amylose content was not different, consequently, the palatability was improved in older seedlings over than 30-day. From these results, it is more beneficial to machine transplant the older seedlings over than 30-day for delayed transplanting.

벼 만식재배시 묘령이 수량 및 품질에 미치는 영향

원종건,안덕종,김세종,최충돈,이상철 韓國作物學會 2008 한국작물학회지 Vol.53 No.5

이상기상으로 인해 모내기 지연형 한발이 발생할 경우나 시설 하우스재배 후작으로 벼를 이앙할 경우를 대비하여 이미 생산해 놓은 묘령이 많은 노숙묘 기계 이앙시 가능 한계 묘령과 그에 따른 미질 변화를 구명코자 시험을 실시하여 다음과 같은 결과를 얻었다. 1. 이앙후 본답 적응력을 보기 위한 굴기력은 품종에 관계없이 묘령이 어릴수록 굴기력이 커 본답 적응력이 높은 것으로 나타났다. 2. 수량은 10일묘에서 현저히 감소하였고, 30일묘 이후는 큰 차이가 없었으나 조생종인 상미벼는 본년과 전년도의 성적이 상이되는 결과를 보여 기상의 영향에 따라 생육이 달랐다. 3. 묘령이 어릴수록 청미 및 피해립의 비율이 높아져 완전미 비율은 떨어졌고, 45, 60일묘에서 완전미 비율이 높아지는 경향이었다. 4. 쌀의 이화학적 특성 및 식미치는 청미와 피해립 등 미숙립이 다발되었던 10일묘에서 단백질 함량이 증가되었으며 식미치도 낮아졌다. This study was conducted to compare the yield and grain quality as affected by rice seedling age in late transplanted rice. The rice yield was remarkably reduced in 10 day-old seedlings but those of older seedlings over than 30-day were not different. In the rice quality, as the rice seedling age younger the rate of greened and damaged rice increased, suggesting decreasing of the head rice rate. Among the physicochemical characteristics, protein content of rice grain was increased in 10 day-old seedling but amylose content was not different, consequently, the palatability was improved in older seedlings over than 30-day. From these results, it is more beneficial to machine transplant the older seedlings over than 30-day for delayed transplanting.

규산질 비료 시용이 쌀 품질 및 저장 특성에 미치는 영향

원종건,김세종,안덕종,서영진,최충돈,이상철 韓國作物學會 2008 한국작물학회지 Vol.53 No.5

규산 시용에 따른 수량 및 미질 관련해서는 많이 보고되고 있지만 도정 특성과 관련된 보고와 특히 저장관련 자료가 거의 없어 이에 대한 연구를 수행하여 다음과 같은 결과를 얻었다. 1. 수량 및 수량구성요소에서는 규산 시용구에서 수수 및 영화수가 증가하였으며, 등숙비율도 2%이상 증가하여 완전미 수량은 7.7~9.5% 정도 증가하였다. 2. 미질 특성의 이화학적 성분 함량은 규산시용에 따라 단백질 함량은 0.2~0.3% 감소하였으며, 쌀의 외관상 품위 변화는 시용량이 증가할수록 분상질립 및 피해립율이 감소되면서 완전미의 비율이 규산 무시용(83.2%)에 비해 규산 1배 시용시 85.6%, 1.5배 시용시 86.4%, 2배 시용시 88.7%로 높아지는 효과가 있었다. 3. 규산을 시용함에 따른 색체 선별율은 4.2~7.2% 향상되었고, 색미율은 5.5~16.6% 낮아져 완전미 도정수율은 5.5~8.6% 향상되었다. 4. 규산 시용에 따른 저장성 변화에 있어서 지방산도는 저온 저장(15℃ )에서는 저장기간에 따른 큰 변화는 없었으나, 상온저장에서는 6월 이후 증가하여 노화가 급격하게 진행되었다. 5. 쌀의 pH에 의한 최상위 등급 비율은 저온 저장에서는 9월 이후부터 낮아지는 경향이나, 상온 저장에서는 6월부터 급격히 낮아져 신선도가 현저히 저하되었으며, 저온과 상온 저장 모두 규산 시용구에서 쌀의 신선도가 무시용구에 비하여 오래 지속되는 경향이었다. This study was carried out to clarify the effect of silicate application on rice grain quality and storage characteristics in Ilpumbyeo cultivar. In yield and yield components, panicles and spikelet numbers were increased and ripened grain rate was also increased by 2%. Head rice yield was increased by 7.7~9.5% in silicate application. Protein content of milled rice was reduced by 0.2~0.3% and head rice rate was increased by 2.9~6.7% in silicate application due to decrease of chalky and damaged rice rate. In milling characteristics, color separation rate was improved by 4.2~7.2% and colored rice rate was decreased by 5.5~16.6% in silicate application. Acid value of stored brown rice were increased slowly in low temperature and silicate application, but that in room temperature and no silicate application was increased remarkably. The best degree rate of stored brown rice (over than 7.5 of pH) measured by the pH of grain was increased by the silicate application in both low and room temperature. Therefore, it was suggested that the storage characteristics of rice grain was improved by the silicate application.

혹명나방 피해 정도에 따른 벼 수량 및 미질 반응

원종건,안덕종,김세종,최충돈,이상철 한국작물학회 2008 Korean journal of crop science Vol.53 No.-

This study was carried out to determine the response of the rice yield and grain quality by rice leaf folder (RLF, Cnaphalocrocis medinalis G.) and identify the damages caused by different transplanting dates, nitrogen amounts and chlorophyll amounts (SPAD value) of rice leaf. As the damage degree of RLF was getting severer, the ripened grain rate and 1000-grain weight were decreased and due to the increasing of chalky rice rate the rate of head rice was reduced. Therefore, the yield of head rice was decreased by 36% in heavily damaged rice plant. Among the physicochemical characteristics, protein content of rice grain was increased but amylose content was reduced, consequently, the palatability was deteriorated in heavily damaged rice by RLF. The degree of damage of RLF was getting serious as transplanting date was delayed and as the amount of nitrogen was increased. In the relationship between the SPAD value and the damage degree of RLF, as the SPAD value was increased by nitrogen fertilizing, the damage degree was also increased exponential functionally. This study was carried out to determine the response of the rice yield and grain quality by rice leaf folder (RLF, Cnaphalocrocis medinalis G.) and identify the damages caused by different transplanting dates, nitrogen amounts and chlorophyll amounts (SPAD value) of rice leaf. As the damage degree of RLF was getting severer, the ripened grain rate and 1000-grain weight were decreased and due to the increasing of chalky rice rate the rate of head rice was reduced. Therefore, the yield of head rice was decreased by 36% in heavily damaged rice plant. Among the physicochemical characteristics, protein content of rice grain was increased but amylose content was reduced, consequently, the palatability was deteriorated in heavily damaged rice by RLF. The degree of damage of RLF was getting serious as transplanting date was delayed and as the amount of nitrogen was increased. In the relationship between the SPAD value and the damage degree of RLF, as the SPAD value was increased by nitrogen fertilizing, the damage degree was also increased exponential functionally.

경북 지역의 연차간 쌀 품질 변이

원종건,이선형,최장수,박상구,안덕종,박소득,손재근,Won Jong Gun,Lee Sun Hyung,Choi Jang Soo,Park Sang Gu,Ahn Duok Jong,Park So Deuk,Son Jae Keun 한국작물학회 2005 Korean journal of crop science Vol.50 No.suppl1

경북지역의 연차, 품종, 이앙시기, 질소 시비량에 있어서 쌀 품질의 변이를 분석하여 고품질 쌀 생산을 위한 최적 기술 투입을 위한 기초 자료로 사용하기 위해 2002년부터 2004년까지 3년간 시험을 실시한 결과는 다음과 같다. 1. 연차 및 지역별 미질 분석에서 식미치와 아밀로즈 함량의 변이계수가 $3.9\~4.3\%$로 낮아 변이가 적었으며, 단백질 함량과 완전미 비율의 변이계수는 $7.9\~12.2\%$로 비교적 높게 나타나 변이가 컸던 것으로 나타났다. 2. 지역별 품종간에 미질 변이에서도 아밀로즈함량과 식미치에서 변이계수가 $2.6\~3.6\%$로 낮았으며, 완전미 비율과 단백질 함량은 $5.4\~7.2\%$로 다소 높았다. 3. 동일 품종에 대한 이앙시기에 따른 쌀의 품질 특성 변이에서는 연차간 및 품종에서와는 달리 단백질 함량의 변이계수가 2.2로 가장 낮았고, 아밀로즈 함량과 완전미 비율에서 $3.1\~3.7$로 다소 낮았지만, 식미치에서는 $5.8\%$로 다소 높아 같은 품종이라도 이앙시기에 따라 식미치의 변화는 큰 것으로 나타났다. 4. 지역간 미질의 변이는 품종 및 이앙기 이동에 따른 변이 보다는 오히려 연차간에 나타나는 변이가 더 크게 나타났으며, 이는 기상의 영향을 많이 받았기 때문인 것으로 사료되었다. 5. 동일 품종에 있어서 질소시비량에 따른 미질관련 형질의 변화와 변이에서는 이화학적 특성 중 아밀로즈 함량은 변이계수가 1.8로 질소질 비료의 영향을 거의 받지 않았던 것으로 나타났고, 질소질 비료를 증시함에 따라 미립내의 단백질 함량은 증가하여 변이계수가 4.4로 그 변이도 컸던 것으로 나타났다. 식미치 또한 단백질 함량과 같은 결과를 보였다. 쌀의 외관상 품위에 있어서는 질소질 비료의 증량에 따라 분상질미의 증가율이 가장 높았다. This study was carried out to improve the rice grain quality of Gyeoungbuk Province from 2002 to 2004. In variation of grain quality characteristics as the cultivation years were changed, the coefficient of variation (CV) of palatability and amylose content were relatively low as $3.9\~4.3\%$ and those of protein content and head rice rate were high as $7.9\~12.2\%$. Among the varieties, the tendency of variation was similar with cultivation years changing, CV of amylose content and palatability also low as $2.6\~3.6\%$ and those of head rice rate and protein content were high as $5.4\~7.2\%$. In variation as affected by shifting of transplanting times, the CV of protein content was low as 2.2, it was also relatively low in amylose content and head rice rate as $3.1\~3.7\%$, but it was high in palatability as $5.8\%$. As the nitrogen application levels were different the CV of amylase content was $1.8\%$ that it was not affected by the N levels. But in case of protein content, the CV was $4.4\%$ that the variation was somewhat increased, it suggested that as the N levels were increased the protein content was also increased. From these results, the rice quality characteristics showed the higher variation in the change of cultivation years than that in rice varieties, transplanting times or nitrogen levels.

일품벼 도정 및 쌀 품질 향상을 위한 분시비율 개선연구

원종건,안덕종,김세종,최충돈,이상철 한국작물학회 2008 Korean journal of crop science Vol.53 No.-

This study was carried out to improve the rice grain quality of Ilpum cultivar, especially to reduce the chalky rice rate by controlling top dressing of nitrogen application ratio at the tillering and panicle initiation stage. In the rice plant growth, the number of tiller and leaf area index of maximum tillering stage were influenced by basal dressing and top dressing at tillering stage; however those of heading stage were mainly influenced by top dressing at panicle initiation stage. In yield and yield components, they were influence by the top dressing at panicle initiation stage and the rice yield was increased by percentage of the top dressing. The protein content of rice grain was increased as the rate of top dressing at panicle initiation stage was increased. The rate of chalky and damaged rice was remarkably increased as the top dressing ratio was increased, resulting in reducing the rate of head rice rate. As the results, the characteristics of milling and rice quality was improved when the amount of top dress was reduced as 50% at the panicle initiation stage, and the yield of head rice also increased. This study was carried out to improve the rice grain quality of Ilpum cultivar, especially to reduce the chalky rice rate by controlling top dressing of nitrogen application ratio at the tillering and panicle initiation stage. In the rice plant growth, the number of tiller and leaf area index of maximum tillering stage were influenced by basal dressing and top dressing at tillering stage; however those of heading stage were mainly influenced by top dressing at panicle initiation stage. In yield and yield components, they were influence by the top dressing at panicle initiation stage and the rice yield was increased by percentage of the top dressing. The protein content of rice grain was increased as the rate of top dressing at panicle initiation stage was increased. The rate of chalky and damaged rice was remarkably increased as the top dressing ratio was increased, resulting in reducing the rate of head rice rate. As the results, the characteristics of milling and rice quality was improved when the amount of top dress was reduced as 50% at the panicle initiation stage, and the yield of head rice also increased.