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국제미작연구소에서 Germplasm Utilization and Value Added(GUVA) 주요 벼 계통의 수량관련형질의 품종간 차이
곽태순,이문희,Visperas, Romeo M 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.1
열대지방인 국제미작연구소에서 GUVA 유망계통에 대하여 생육 및 수량관련 형질특성을 상관과 주성분 분석에 의한 품종분포를 파악한 바 결과를 요약하면 아래와 같다. 1. GUVA 자포니카 혈통의 계통들은 인디카 혈통의 계통보다 등숙비율이 상대적으로 높았다. 2. 생육 및 수량관련 형질을 기존으로 주성분 분석한 결과 제3의 고유치까지는 전체 변이 정보의 81.63%까지 파악할 수 있었다. 3. 제1주성분은 출수일수, 간장, 수당영화수 및 고중을 크게 할 뿐만 아니라 등숙비율을 감소시키는 방향으로 작용하는 성분이었으며 제2주성분은 천립중을 크게 하고 수수, 초기 급속등숙율 및 고중을 감소시키는 쪽으로 작용했고 제3주성분은 정조중을 증가시키는 것으로 나타났다. 4. 각 품종의 주성분치로서 평면상 도표로 그린 품종군 분류로 형질특성의 공통된 일부를 파악할 수 있었다. Correlation and principal component analysis were applied to get the basic breeding informations of Germplasm Utilization and Value Added(GUVA) Japonica lines at the International Rice Research Institute, 2001 wet season. The GUVA Japonica lines which had Japonica parentage showed higher grain filling rate than the Indica parental cultivars. 81.63 percent information could be explained upto the third eigen value of growth and yield related characters by the principal component analysis. The first principal component was applicable to increase days to flowering, culm length, number of spikelets per panicle and straw yield, and applicable to decrease grain filling ratio. The second principal component affect increasing 1000 grain weight and decreasing number of panicles, initial grain filling ratio straw yield. And the third principal component influenced increasing grain yield. Varietal classification by the principal component score of each line could be applied to the interpretation of the community by the dendrogram for the used varietal characters.
Eileen Wong,Shirley Visperas,So Yung Choi,Mahealani Suapaia 대한외상중환자외과학회 2023 Journal of Acute Care Surgery Vol.13 No.3
Purpose: The national rate of pressure injury (PI) in the intensive care unit (ICU) 2016-2018 was 5.97%, while at one hospital in Honolulu, Hawaii it averaged 13%. The Braden scale is the gold standard PI risk assessment tool. Researchers have reported the Braden scale has limited value in the ICU setting and consider tissue perfusion to be the better indicator. The aim was to determine if tissue perfusion, as measured by noninvasive transcutaneous tissue oxygen levels, was a predictor of PI risk development. Methods: Electronic medical records of 161 patients admitted from January 1, 2017 to June 30, 2019 were retrospectively reviewed. Patients’ characteristics were summarized using descriptive statistics. Bivariate associations with the development of PI were examined using Fisher’s exact test for the categorical variables, and Wilcoxon rank-sum test for the continuous variables. A multivariable logistic model was fitted for the development of PI with adjustments for potential confounders. Results: Of 161 patients, 125 met the inclusion criteria. Length of stay, Acute Physiology and Chronic Health Evaluation II score, use of vasopressors, and the Braden score were statistically significant predictors of PI risk development; tissue perfusion was not significant. Conclusion: ICU patients have a higher mortality and severity of illness. The Braden score guides implementation of PI preventative measures. The relationship between tissue perfusion and PI development may warrant further research. A broader clinical picture to incorporate the Braden scale and other risk factors in PI development such as Acute Physiology and Chronic Health Evaluation II score and use of vasopressors should be considered.
Estimates of combining ability for vegetative stage cold tolerance in rice
알 엔 카우(R. N. Kaw),로미 엠 비스페라스(R. M. Visperas),Huhn Pal Moon(文憲八),Jong Doo Yae(芮種斗) 한국육종학회 1986 한국육종학회지 Vol.18 No.1
Ninety F₁ rice hybrids were evaluated for combining abilily for low-temperature tolerance at the vegetative growth stage. Evaluation was done by subjecting the plant to 17℃ and 20℃ water temperatures in separate blocks from 20 days afler transplanting to maturity. Combining ability analysis showed the predominance of additive gene action. The Japonica parents viz. Shimokita, K48, SR5204-91-4-1, Stejaree 45, Barkat and K332 were good donors for vegetative stage cold tolerance. The best sca combinations involved both high and low general combiners. Parental performance per se was a good indicator of gca effects of the parents.
Estimates of combining ability for cold tolerance at reproductive stage in rice
램 나스 카우(Ram Nath Kaw),Huhn Pal Moon(文憲八),Jong Doo Yae(芮鍾斗),로미 엠 비스페라스(R.M. Visperas) 한국육종학회 1989 한국육종학회지 Vol.21 No.3
Ninety F₁ rice hybrids, produced by crossing 15 rice cultivars having lowtemperature tolerance at different growth stages with 6 high yielding elite IRRI cultivars, were evaluated for combining ability for reproductive stage cold tolerance. Evaluation was done by subjecting the plants to 17℃ and 20℃ water temperatures, in separate blocks, from 20 days after transplanting to maturity. Both general (GCA) and specific (SCA) combining ability variances were significant, with estimates of GCA being larger for all traits, showing predominance of additive type of gene action. The indica parents viz. Samgangbyeo, Suweon 287, Shoa-Nan-Tsan, K 39-96, China 988, IR 9202, Leng Kwang, IR 7167 and IR 15889 proved to be good donors for reproductive stage cold tolerance. Parental performance per se was a good indicator of general combining ability effects of the parents, but no association was observed between per se performance of the crosses and their specific combining ability effects.