1,196 research outputs found
(20(1):41-43)PRELIMINARY OBSERVATION ON THE AGRONOMIC TRAITS OF RICE VARIETIES INTRODUCED FROM SEVERAL AFRICAN COUNTRIES
No full text本分所於民國59年從事非洲引進稻之適應性觀察。初步結果顯示多數引進稻之株高、穗數及生育日數均不甚理想，惟其穗長、穗重、一穗粒數及谷粒之形狀與大小等，則頗有可取之處，似為良好之雜交育種材料。
One hundred and fifty six rice varieties introduced from several African countries, Iran, and Domenica were evaluated for their major agronomic traits in the first and second crops of 1970 at the Chiayi Agricultural Experiment Station. Preliminary results indicated that plant height, number of panicles per hill and growth duration of most introductions were unsatisfactory. However, the length of panicle, panicle weght, number of grains per panicle, and the shape of grains of these varieties appeared to be superior to local commercial varieties. It is, therefore, suggested that most of these introduced varieties can be used as breeding materials for improving local varieties
Self starting additive pulse modelocking of a Nd:LMA laser
No full textA Ti:sapphire-pumped Nd:LMA laser has been passively mode locked by using additive-pulse mode locking, which generates 600-fs-duration pulses at 1.054-µm. The wavelength, pulse duration, and long-term stability of the laser make it eminently suitable as a front-end oscillator of a high-power, chirped-pulse amplifier experiment based on 1.053-µm amplification in Nd:phosphate glass
Correction: Ntakolia et al. An Explainable Machine Learning Approach for COVID-19’s Impact on Mood States of Children and Adolescents during the First Lockdown in Greece. Healthcare 2022, 10, 149
No full textExclusion of an Author Argyris Stringaris was initially included as an author in the original publication [1]. However, due to his personal decision, we have excluded him from the authors and we added his contribution to the acknowledgments section. The corrected Author Contributions and Acknowledgments are shown below. Author Contributions: Conceptualization, C.N.; methodology, C.N.; software, C.N.; validation, C.N.; formal analysis, C.N., I.R., I.G., A.S. and E.L.; data curation, C.N., D.P., K.M., I.G., K.K., A.S., E.T., A.G., K.L., I.K., N.S. and G.O.; writing—original draft prepara-tion, C.N., D.P., I.R., A.S., E.L. and M.C.-T.; writing—review and editing, C.N., I.R., I.G. and M.C.-T.; visualization, C.N.; supervision, E.L.; project administration, E.L. All authors have read and agreed to the published version of the manuscript. © 2022 by the authors. Licensee MDPI, Basel, Switzerland
(20(4):8-23)水稻雜種優勢之表現
No full textThe manifestation of heterosis for grain yield, yield components and several important agronomic characters by a group of 265 F1 hybrids of rice over a six-crop period from the second crop of 1967 to the first crop of 1970 are reported. Among 265 F1 hybrids evaluated, a total of 192 or 72.5% of the total hybrids outyielded their mid-parent and check varieties while grain yield of 145 or 54.7% of the hybrids exceeded their respective high-parent. The average heterosis for these outstanding F1 hybrids was 20.3, 19.1 and 18.3% in relation to mid-parent, check varieties and high-parent, respectively. However, the magnitude of hybrid advantage over the mid-parent and check varieties reduced to 10.6 and 6.3% respectively when the average data of the six crops were considered. The superiority of F1 hybrids over high-parent was also reduced to nil when averaged over all entries. The number of panicles per plant and the number of grians per panicle were found to be the most important components associated with the manifestation of heterosis for grain yield.
The correlation coefficient between mid-parent yield and yield of the hybrids was largeenough to in dicate that mid-parent value would be highly effective indicator of hybrid performance. However, mean square associated with F1 hybrids vs. parents also attained significance in some cases. There was no evidence of maternal effect on the grain yield of the hybrids.
The heterosis expresses for grain yield in the first crop was generally larger than that in the second crop. F1 hybrids also exhibited large leaf area index, earlier heading, taller plant, longer and heavier panicle in comparison with mid-parent and check varieties. The expression of heterosis for plant height and number of tillers per plant was not affected appreciably by the stages of rice growth.
本文係報告自民國56年第2期作至民國59年第一期作觀察265個F1雜種對稻谷產量，產量構成因素，及其他主要農藝性狀所表現雜種優勢之結果。在供試Fl中，有192個或72.5%之F1，其稻谷產量超過中間親本及標準對照品種，其平均雜種優勢分別為20.3與19.1%。又有145個或54.7% F1，其稻谷產量超過高產量親本，其平均雜種優勢為18.3%。惟全部供試Fl之平均雜種優勢只分別超過中間親本及對照品種10.6與6.3%，而對高產量親本則未見呈現絲毫雜種優勢。在產量構成因素中，以每株穗數及每穗粒數兩性狀對稻谷產量維種優勢之表現，貢獻最大。
中間親本產量與Fl產量之間，其相關係數數值頗大，顯示可以中間親本之數值作Fl產量表現之初步推測，惟若干親本對Fl之均方和亦達顯著水準。正反交對Fl產量似無太大之影響。
Fl稻谷產量之雜種優勢，第1期作者校第2期作為優。Fl在葉面積指數，生育日數，株高，穗長與穗重等性狀，對中間親本及對照品種而言，亦均顯示不同程度之雜種優勢。不同生育時期對株高及每株分蘗數之雜種優勢表現，似無太大之影響
Synthesis, antiplatelet and vasorelaxing effects of monooxygenated flavones and flavonoxypropanolaines.
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Consensus on women's health aspects of polycystic ovary syndrome (PCOS)
No full textPolycystic ovary syndrome (PCOS) is the most common endocrine disorder in females with a high prevalence. The etiology of this heterogeneous condition remains obscure and its phenotype expression varies. Two, widely cited, previous ESHRE/ASRM-sponsored PCOS consensus workshops focused on diagnosis (published in 2004) and infertility management (published in 2008). The present third PCOS consensus paper summarizes current knowledge and identifies knowledge gaps regarding various women’s health aspects of PCOS. Relevant topics addressed—all dealt with in a systematic fashion—include adolescence, hirsutism and acne, contraception, menstrual cycle abnormalities, quality of life, ethnicity, pregnancy complications, long-term metabolic and cardiovascular health and finally cancer risk. Additional, comprehensive background information is provided separately in an extended online publication.B.C.J.M. Fauser, B.C. Tarlatzis, R.W. Rebar, R.S. Legro, A.H. Balen, R. Lobo, H. Carmina, R.J. Chang, B.O. Yildiz, J.S.E. Laven, J. Boivin, F. Petraglia, C.N. Wijeyeratne, R.J. Norman, A. Dunaif, S. Franks, R.A. Wild, D. Dumesic and K. Barnhar
(37(4):349-359)Development of Aromatic Rice Variety Tainung Sen 20
No full text臺農秈20號為本省經雜交育成之秈型香米品種，具有濃芳之香味，米質優良，並抗稻熱病，褐飛蝨等病蟲害，株高一期作109.3公分，二期作115.0公分；每株穗數一期作16.1支，二期作12.4支；全生育日數一期作143天，二期作107天；粒型中長稍細，米粒富光澤，心腹白少，直鏈性澱粉含量18.5％，種子稍具休眠性，稻穀產量根據區域試驗結果，平均每公頃一期作為6,061公斤，二期作為5,371公斤，一期作在高屏地區較高產，二期作在褐飛蝨易發生地區都適合栽培。
本品種耐寒性較差，一期作不宜過早育苗及插秧，以免秧苗受寒害，又本品種較易脫粒，在沿海季節風較大地區避免種植，以免脫粒損失，香米之香味為揮發性，因比貯藏時最好放置通風良好之涼冷地方。
Rice variety Tainung Sen 20 was a selection from the cross between Chianung Shi-pi 671178 and a F4 line, having heavy aromatic flavor, excellent rice quality and resistance to blast disease and brown planthopper. Its plant height was 109─115 cm with panicle number of 12─16 per hill, and the growing duration, 107─143 days. It has long grains somewhat slendel and shinny, with very few white-belly kernel. The average grain yield at 3 locations in 2 years was 6,061 kg/ha and 5,371 kg/ha, respectively in the first and second crops. The yield potential was higher at Kao-ping area in the first crop. It is adaptable in where the brown planthopper prevails.
This variety is less cold tolerance, therefore, it is not recommended for early planting in the first crop. Since this is easy-shatting, it is not recommended to be grown in the coastal region where monsoon is strong and keep this rice in a cool place for storage to maintain the aromatic flavor
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