• 한국작물학회지
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• 제47권1호
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• pp.29-35
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• 2002

This study was carried out to investigate the characteristics of shattering habit and germination of offtype rice plants collected in Korea which were classified into seven groups based on grain characteristics. In the long-grain red rice group, the short-grain red rice group, the long-grain normal rice group, and the long-grain waxy rice group, the tensile strength of grain and primary rachis branch was relatively low and the fiber cell of the primary rachis branch was short. Characteristics of shattering-related traits and germination in relation to grain and esterase isozyme zymogram type of off-type rice plants. In most lines of the extremely late and sterile rice group, the tensile strength of grain was low, while that of primary rachis branch was high, and the fiber cell was long. However, in the type 1 esterase isozyme zymogram(EIZ) lines among the long-grain normal rice group and the type 6 and 5+6 EIZ plants among the extremely late and sterile rice group, the tensile strength of grain was relatively higher. The long-grain waxy rice group and the type 3 EIZ lines among the long-grain red rice group, showed higher germinability than did cultivars which are known to germinate well even in low-temperature. The other off-type rice group, except for the short-grain waxy rice group and type 1 and 7 EIZ lines among the long-grain normal rice group, had higher germination speed than that of the cultivars.

• 한국작물학회지
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• 제46권3호
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• pp.170-175
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• 2001

농가포장에서 발생하는 벼 이형주군별 발생포장 비율과 발생량 및 형질특성은 다음과 같다. 1. 우리나라의 지역별 발생포장 비율은 남서부, 남동부, 중부지방 순 이었고, 발생량은 남부지방이 중부지방보다 많았다. 2. 우점 이형주군은 단립적미군, 극만생 불임군, 장립적미군 순이었고, 장립적미군은 전남과 경남, 극만생 불임군은 전북, 단립적미군은 나머지 지역에서 우점하였다. 3. 대부분 이형주군의 간장은 인근 농가의 재배벼보다 길었는데, 특히 장립적미군과 단립적미군이 길었다. 4. 수당 영화수는 이형주군이 재배벼보다 많은 경향이었는데, 특히 극만생 불임군과 장립메성군이 많았다. 그러나 이형주군들은 대체로 불임이 심했다.

• 한국작물학회지
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• 제47권3호
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• pp.206-210
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• 2002

종실 등의 특성을 기준으로 분류한 7가지 벼 이형주군의 변이와 분리양상은 다음과 같다. 1. Esterase 동위효소 분석에서 장립적미군은 1과 3 esterase isozyme zymogram(EIZ), 장립메성군은 1, 3 및 7 EIZ로 분류할 수 있었다. 2. 극만생 불임군은 EIZ가 1, 2, 1+2, 5, 6, 5+6, 7, 8, 7+8 및 12로 다양하게 분리되었다. 3. EIZ가 1인 장립적미군이 3 EIZ인 장립적미군에 비해 간장이 길고 현미의 장폭비가 낮았다. 4. EIZ가 3인 장립메성군은 1이나 7 EIZ인 장립메성군에 비해 간장이 길고 수장이 짧고 분얼수가 많고 현미의 장폭비가 낮으며 수당 립수가 적었다.

• 한국작물학회지
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• 제46권6호
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• pp.429-433
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• 2001

경종조건에 따른 벼 이형주의 발생양상과 특성은 다음과 같다. 1.벼 이형주의 발생량은 종자의 자가 채종년수가 증가할수 록 많았고, 직파재배 포장에서 이앙재배 포장보다 2배 가량 많았다. 2. 재배벼의 재배포장에 장립적미와 단립적미를 인위적으로 산파 하였을 때 담수표면산파 재배에서 기계이앙 재배보다 발생량이 많고 간장이 길고 주당 유효경수가 많았으며, 장립적미가 단립적미보다 이런 특성들을 많이 지녔다. 3. 이앙재배 포장에서 이형주가 재배벼의 포기 밖에서 발생하는 비율은 농가관행재배의 경우 0∼6%인 반면, 장립적미와 단립적미를 인위적으로 산파하였을 때는 70.6∼91.1% 이기 때문에 농가포장에서 발생하는 이형주군의 대부분은 종자흔입에 의해 발생하는 것으로 보아진다.

• 한국식품영양과학회지
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• 제28권4호
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• pp.837-844
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• 1999

The textural properties and retrogradation of injeulmi(Korean traditional waxy rice cake) made from various waxy cultivars were examined to compare the varietal difference. Injeulmi made from Shinsun chalbyeo and Whasunchalbyeo were exhibited relatively soft texture, while Taichung Sen Glu I and Yuk donongrimna were shown high adhesivness. Intermediate or long grain rice such as Yukdonongrimna, Hangangchalbyeo and Taichung Sen Glu I had a tendency to be rapidly retrogradatated as compared with short grain rice, Shinsunchalbyeo and Whasunchalbyeo. Amylogram characteristics of these intermediate or long grain rice cultivars were shown high value in consistency and low value in setback. Studies per formed by various cookery procedure demonstrated that injeulmi made from cooked waxy rice was softer and delaying retrogradation than made from waxy rice flour.

• 산업식품공학
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• 제15권4호
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• pp.338-345
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• 2011

단립종 100%, 장립종 100%, 단립종 50%와 팽화미분50% 그리고 장립종 50%와 팽화미분 50%로 제조한 탁주의 pH, 산도, 단백질, 색도, 환원당, 총당, 알코올 그리고 관능성질을 조사하였다. 모든 시료의 pH는 발효 초기에 급격히 감소한 후 장립종 100%를 제외하고 서서히 상승하였다. 발효 2일 후 단립종은 장립종보다 그리고 팽화미분은 순 쌀보다 같거나 높았다(p < 0.05). 산도는 발효 시간 지낼수록 모든 시료에서 증가하였다. 장립종 100%는 단립종 100%보다 3일부터 그리고 장립종 50%는 단립종 50%보다 4일부터 높았다(p < 0.05). 모든 시료의 단백질은 1일에 증가한 후 감소하였고 팽화미분은 순 쌀과 같거나 높았다(p < 0.05). L값은 모든 시료에서 발효 초기에 증가한 후 감소하였다. 발효 4일부터 단립종은 장립종보다 그리고 3일부터 팽화미분은 순 쌀보다 L값이 낮았다. 담금 직후부터 순 쌀의 a값은 점점 감소하였고 팽화미분은 3일 때 까지 증가하다가 감소하였다. 모든 시료의 b값은 발효 2와 3일에 최고값을 보인 후(p < 0.05) 감소하는 경향을 보였다. 담금 직후 팽화미분은 순 쌀보다 환원당이 훨씬 높았다. 순쌀은 발효 1일에 증가한 후 감소하였고 팽화미분은 급격히 감소하였다. 총당은 환원당과 유사하였다. 알코올은 발효 2일까지 모든 시료에서 급격히 증가하였고 단립종은 장립종보다 그리고 팽화미분은 순 쌀보다 항상 높았다(p <0.05). 단립종 100%와 장립종 100%는 1% 수준에서 유의적인 차이가 있었지만 선호도는 차이가 없었다. 단립종 50%와 장립종 50%는 유의적으로 차이가 없었다.

• 한국작물학회지
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• 제44권3호
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• pp.207-213
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• 1999

Thirty-eight glutinous rice varieties were classified into nine groups on the scatter diagram by the upper two principal components (56% contribution to the total information) based on eleven physicochemical characteristics including the viscograms and physical properties of cooked rice. The first principal component was the factor mainly associated with the viscogram characteristics of rice flour emulsion and the second was the factor chiefly related to the physical properties of cooked rice and water absorbability of rice grain. Indica glutinous rices were clearly distinguished from japonica ones by the first principal component score. Javanica glutinous rices were widely distributed on the intermediate zone between indica and japonica or on several japonica rice groups. Significant positive or negative correlations were found among water absorption rates of rice grain, physical properties of cooked rice, and viscogram characteristics of rice flour. Especially in japonica glutinous rices, the breakdown and setback viscosities of rice flour were closely associated with the alkali digestion value of milled rice and the stickiness of cooked rice. The frequency ratio of short glucose chains (A-chain) to intermediate glucose chains (B-chain), the ratio of B- chains to long glucose chains (C-chain) and the relative frequency of A- or B-chain fractions representing the amylopection structure of rice starch was closely associated with the breakdown and setback viscosities of rice flour.

• 한국식생활문화학회지
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• 제16권4호
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• pp.323-329
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• 2001

쌀엿강정은 쌀을 호화 건조하여 유탕처리하거나 가압 등으로 팽화시켜서 제조한다. 이때 호화과정에서 가열기구나 호화의 정도가 쌀의 팽화에 영향을 미칠 것으로 판단되어 이들 처리에 따라 팽화량(크기, 비중), 사진촬영, 주사형 전자현미경(SEM)으로 관찰 비교하였다. 1. 전기밥솥이나 압력솥, 혹은 증기로 찌는 등 밥의 형태로 쌀을 호화시킨 것은 팽화쌀이 서로 부착된 것이 많아 좋지 않았다. 전기밥솥이나 압력솥의 경우는 팽화쌀의 표면에 파괴된 부분이 나타났다. 압력솥이나 증기고 찌는 경우는 쌀의 팽화량이 작았다. 2. 쌀을 세정하여 바로 많은 양의 물로 끓이는 방법이 좋았으며, 쌀을 불려서 끓이는 방법과 팽화량에 차이를 보이지 않았다. 쌀을 불리더라도 익을 정도로만 단시간에 끓일 경우에는 오히려 팽화량이 작았다. 3. 쌀을 끓이는 시간이 길수록 팽화는 컸으나 너무 지나칠 정도로 끓일 경우에는 쌀의 표면이 파괴되거나 균열이 생겨서 외관이 좋지 않고 팽화량도 작았다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.339-339
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• 2017

The long grain rice varieties adaptable to South-east Asia tropical regions were tried to develop in Cambodian Agriculture Research and Development Institute (CARDI), Cambodia. The final goal is to develop rice varieties which can culture in diverse environmental conditions of tropical regions of South-east Asia under climate change. We collected and evaluated for agronomic traits of 131 rice germplasm from Cambodia, China, India, Indonesia, Myanmar, Philippines and Vietnam in CARDI. We selected core germplasm including leading varieties of target countries and made 813 F1 cross combinations between leading varieties of each country and promising germplasm of high yield potential, resistance to biotic/abiotic stresses, aromatic rice, and so on. Out of 607 F1s evaluated to heading date, plant type, agronomic traits, and grain type, 106 F1s selected and advanced to F2 populations. 106 F2 populations were evaluated to major agronomic traits, grain type and yield-component traits, and selected 2,560 plants in 62 F2 populations. During six seasons in 2014~2016, the lines of F3 subsequent-generation were cultured a total of 6,256 lines. In yield trial for promising lines in F5 generation, the growth duration from sowing to harvesting was 97~114 days. These lines were 88~129 in number of grain per panicle, an average of 84.6% in the range of 79.3~91.9% in the percentage of ripened grain and 17.5~22.8g in 1000-brown rice weight. The rough rice yields were in the range of 4.33~6.06 ton/ha with an average of 5.23 ton/ha. The yield was increased to 5~47% than Chulsa and 12~41% than IR66. Five lines, KR54-28-1, KR55-14-2, KR57-5-2, KR67-57-2 and KR128-19-1 were 5.33~6.06 ton/ha in rough rice yield. These high yield potential lines would be evaluated to adaptability in Cambodia, Laos, Myanmar and Vietnam during 2017.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.155-155
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• 2017

The long grain rice varieties adaptable to South-east Asia tropical regions were tried to develop in Cambodian Agriculture Research and Development Institute (CARDI), Cambodia. The final goal is to develop rice varieties which can culture in diverse environmental conditions of tropical regions of South-east Asia under climate change. We collected and evaluated for agronomic traits of 131 rice germplasm from Cambodia, China, India, Indonesia, Myanmar, Philippines and Vietnam in CARDI. We selected core germplasm including leading varieties of target countries and made 813 F1 cross combinations between leading varieties of each country and promising germplasm of high yield potential, resistance to biotic/abiotic stresses, aromatic rice, and so on. Out of 607 F1s evaluated to heading date, plant type, agronomic traits, and grain type, 106 F1s selected and advanced to F2 populations. 106 F2 populations were evaluated to major agronomic traits, grain type and yield-component traits, and selected 2,560 plants in 62 F2 populations. During six seasons in 2014~2016, the lines of F3 subsequent-generation were cultured a total of 6,256 lines. In yield trial for promising lines in F5 generation, the growth duration from sowing to harvesting was 97~114 days. These lines were 88~129 in number of grain per panicle, an average of 84.6% in the range of 79.3~91.9% in the percentage of ripened grain and 17.5~22.8g in 1000-brown rice weight. The rough rice yields were in the range of 4.33~6.06 ton/ha with an average of 5.23 ton/ha. The yield was increased to 5~47% than Chulsa and 12~41% than IR66. Five lines, KR54-28-1, KR55-14-2, KR57-5-2, KR67-57-2 and KR128-19-1 were 5.33~6.06 ton/ha in rough rice yield. These high yield potential lines would be evaluated to adaptability in Cambodia, Laos, Myanmar and Vietnam during 2017.