1,720,970 research outputs found
Research and Development of Aloe in Penghu II .The Effects of Deep Soil Ploughing on Growth and Yield of Aloe in Penghu
本試驗之主要目的為探討土壤深耕處理(深耕20 公分、30 公分、40 公分與不深耕等四種處理)對澎湖二個產苓品系(種)KPH85-2 (Aloe arborescenes)及KPH83-1(A. chinensis)之生育及產量之影響。資料顯示,定植6個月後,品種間植株之株高、葉片大小與葉片數等生長差異即很明顯,一年生之差異則更加顯著,自美國引進KPH85-2品系之產量構成因素優於KPH83-1品系。土壤深耕處理之效應於植株定植6個月時尚未顯現,而一年生植株之差異則非常顯著,以土壤深耕30公分及40公分之效果最佳。
The main purpose of this study was to investigate the effects of four kinds of deep soil ploughing (20cm, 30cm, 40cm and CK) on growth and yield of two Aloe varieties KPH85-2 (Aloe arborescenes) and KPH83-l(A. chinensis)in Penghu. The results showed that the yield components of Aloe variety were significantly different after six months planting. KPH85-2, which is imported from the U.S.A., had the higher yield components of plant height leaf size and number than KPH83-l, but no significant differences on the effects of different deep soil ploughing. Significant differences were found after one year; the best results of soil plough on the growth of Aloe were cultivation 30cm and 40cm deep
Phantasmic Metamorphosis: The Development of Ming Taoist Ink Painting, from the Perspective of the Fukien Painter Ch’en Tzu-ho
The Significance of Southern-Sung Figure Paintings Transported to Japan in the Thirteenth and Fourteenth Centuries
Bacterial stalk rot of sunflower in Taiwan: varietal resistance and agrochemical screening
民國91 年6 月,在苗栗縣大湖地區所種植之向日葵發生植株葉片乾枯萎凋
的徵狀,但莖仍直立於田間,切開莖部,其內部已成中空且具水浸狀腐爛,若發
生於植株莖苗期被害,嚴重者倒伏死亡。92 年夏天同樣情形再度發生。經柯霍氏
法則確認該病原為細菌。經生理生化,Biolog 鑑定及專一性引子進行PCR 分析
等測定,確認該病原菌包括Erwinia chrysanthemi (Ech) 及E. carotovora pv.
carotovora (Ecc)。該病原菌主要造成向日葵植株軸心中空及腐爛,進而引起植株
萎凋枯死,因此稱為向日葵細菌性軸腐病(stalk rot)。由Ecc 及Ech 引起之向日
葵細菌性軸腐病為台灣向日葵首次記錄。品種抗性測定發現供試九種向日葵品種
中以東北八重最為感病,月光及光輝雖感病但抗性較強。軸腐病菌對馬鈴薯塊
莖、大白菜梗、胡蘿蔔塊根均具強致腐能力。測試市售11 種藥劑在一般使用濃
度下以濾紙圓盤法測試對軸腐病菌菌株生長之抑制效果,顯示除甲基鋅乃浦對該
病菌之生長無抑制作用外,其餘 10 種包括鏈黴素、四環黴素、鏈四環黴素、嘉
賜黴素、多保鏈黴素、氫氧化銅、鹼性氯氧化銅、嘉賜銅、鋅錳乃浦及鋅錳滅達
樂等藥劑均能抑制其生長,且以四環黴素藥劑之效果最佳。
Severe stalk rot of sunflower was first found in Tahu, Miaoli County in 2002.
The disease mainly appeared on the stem and caused water-soaked symptoms. In
some severe cases, the stem pith disintegrated and showed hollow stem symptoms.
The pathogens were identified as Erwinia chrysanthemum and E. carotovora subsp.
carotovora based on physiological and chemical tests, Biolog identification, and PCR
analysis. This is the first record of the disease occurring in Taiwan. Resistance
screening indicated that “Tohokuhae” was the most sensitive cultivar and “Moon
bright” and “Sunbright” showed better resistance when inoculated with Ech. Among
11 bactericides screened, tetracycline proved to be the most effective
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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