1,720,962 research outputs found
Identifikasi dan uji efektivitas rizobakteri dalam meningkatkan hasil tanaman kacang tanah
Full text linkIn order to increase groundnut productivity, it is necessary to find agents that can improve the growth and yield of it. This study was done to determine the potential use of rhizobacteria to promote the growth and increase the yield of groundnut under green house experiment. The research was conducted in the plant disease laboratory, Faculty of Agriculture, Udayana University, in June 2022-January 2023. Five isolates of rhizobacteria namely FN1, FN2, FL3, FL4, and FL5 were tested for their effectiveness in promoting the growth, increase the yield, and protein content of groundnut. Molecular identification based on 16S rRNA gene sequence showed that FN1 and FL5 were similar to Klebsiella pneumonia with the similarity level at 98%. FN2 was similar to Klebsiella variicola with 99% similarity, FL3 was similar to Proteus mirabilis with 100% similarity, and FL4 wassimilar to Providencia rettgeri with 99% similarity. Rhizobacteria treatments significantly improved the groundnut growth, in which plant height, dry weight of shoot, dry weight of root, chlorophyll content, and the number of nodule significantly (p<0.05) higher compared to control. Yield component such the number of pod per plant, weight of pod per plant, water content and protein content in the seed of treated plants were significantly higher than control. These rhizobacteria may be further developed as plant growth promoting agents to increase the yield and protein content of groundnut.ABSTRAK Pemanfaatan mikroba yang bisa meningkatkan pertumbuhan dan hasil kacang tanah sangat penting untuk meningkatkan produksi. Penelitian ini menguji tentang potenis rizobakteri untuk meningkatkan pertumbuhan dan hasil kacang tanah yang dibudidayakan pada greenhouse. Penelitian dilakukan di lab penyakit tumbuhan, fakultas pertanian universitas udayana, pada bulan Juni 2022-januari 2023. Lima isolat rizobakteri: FN1, FN2, FL3, FL4, dan FL5 telah diujikan untuk mengetahui kemampuan dalam meningkatkan pertumbuhan, hasil serta kandungan protein kacang tanah. Analisis molekuler berbasis 16S rRNA menunjukkan isolat FNI dan FL5 memiliki 98% kemiripan dengan Klebsiella pneumonia. Isolat FN2 memiliki 99% kemiripan dengan Klebsiella variicola, isolat FL3 mirip dengan Proteus mirabilis pada tingkat 100%, dan isolat FL4 memiliki 99% kemiripan dengan Providencia rettgeri. Perlakuan dengan isolat rizobakteri menunjukkan hasil yang signifikan (p<0.05) pada pertumbuhan kacang tanah seperti tinggi tanaman, berat kering brangkas, berat kering akar, kandungan klorofil daun dan jumlah bintil akar dibandingkan dengan kontrol. Jumlah polong, berat polong per tanaman, kadar air dan kandungan protein pada tanaman juga menunjukkan hasil yang lebih tinggi dibanding kontrol. Hal ini menunjukkan rizobakteri potensial dikembangkan untuk meningkatkan pertumbuhan, hasil dan kandungan protein kacang tanah
Identifikasi dan uji efektivitas rizobakteri dalam meningkatkan hasil tanaman kacang tanah
Full text linkIn order to increase groundnut productivity, it is necessary to find agents that can improve the growth and yield of it. This study was done to determine the potential use of rhizobacteria to promote the growth and increase the yield of groundnut under green house experiment. The research was conducted in the plant disease laboratory, Faculty of Agriculture, Udayana University, in June 2022-January 2023. Five isolates of rhizobacteria namely FN1, FN2, FL3, FL4, and FL5 were tested for their effectiveness in promoting the growth, increase the yield, and protein content of groundnut. Molecular identification based on 16S rRNA gene sequence showed that FN1 and FL5 were similar to Klebsiella pneumonia with the similarity level at 98%. FN2 was similar to Klebsiella variicola with 99% similarity, FL3 was similar to Proteus mirabilis with 100% similarity, and FL4 wassimilar to Providencia rettgeri with 99% similarity. Rhizobacteria treatments significantly improved the groundnut growth, in which plant height, dry weight of shoot, dry weight of root, chlorophyll content, and the number of nodule significantly (p<0.05) higher compared to control. Yield component such the number of pod per plant, weight of pod per plant, water content and protein content in the seed of treated plants were significantly higher than control. These rhizobacteria may be further developed as plant growth promoting agents to increase the yield and protein content of groundnut.ABSTRAK Pemanfaatan mikroba yang bisa meningkatkan pertumbuhan dan hasil kacang tanah sangat penting untuk meningkatkan produksi. Penelitian ini menguji tentang potenis rizobakteri untuk meningkatkan pertumbuhan dan hasil kacang tanah yang dibudidayakan pada greenhouse. Penelitian dilakukan di lab penyakit tumbuhan, fakultas pertanian universitas udayana, pada bulan Juni 2022-januari 2023. Lima isolat rizobakteri: FN1, FN2, FL3, FL4, dan FL5 telah diujikan untuk mengetahui kemampuan dalam meningkatkan pertumbuhan, hasil serta kandungan protein kacang tanah. Analisis molekuler berbasis 16S rRNA menunjukkan isolat FNI dan FL5 memiliki 98% kemiripan dengan Klebsiella pneumonia. Isolat FN2 memiliki 99% kemiripan dengan Klebsiella variicola, isolat FL3 mirip dengan Proteus mirabilis pada tingkat 100%, dan isolat FL4 memiliki 99% kemiripan dengan Providencia rettgeri. Perlakuan dengan isolat rizobakteri menunjukkan hasil yang signifikan (p<0.05) pada pertumbuhan kacang tanah seperti tinggi tanaman, berat kering brangkas, berat kering akar, kandungan klorofil daun dan jumlah bintil akar dibandingkan dengan kontrol. Jumlah polong, berat polong per tanaman, kadar air dan kandungan protein pada tanaman juga menunjukkan hasil yang lebih tinggi dibanding kontrol. Hal ini menunjukkan rizobakteri potensial dikembangkan untuk meningkatkan pertumbuhan, hasil dan kandungan protein kacang tanah
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Effectiveness of Rhizobacteria to Reduce Rice Blast Disease Intensity
Full text linkRice blast disease caused by Magnaporthe grisea Barr (anamorf Pyricularia grisea Sacc. synonym Pyricularia oryzae Cav.) is one of important diseases for rice cultivation in Indonesia. Five isolates of rhizobacteria isolated from the rhizospheres of rice in Bali were tested for their effectiveness to reduce the rice blast disease intensity on rice cultivar Ciherang under green house condition. All isolates were formulated in liquid formulas which were respectively contained bacterial suspension of Enterobacter agglomerans Ch2D, Xanthomonas luminescens Ch3D, Enterobacter agglomerans Ch4B, E. agglomerans Gg14D and Serratia liquefaciens Gh13D. Results of this study showed that all five formula of rhizobacteria effectively reduced the rice blast intensity on rice cultivar Ciherang. The rice blast intensity on plants treated with rhizobacteria were varied from 13.96 to 19.44%, while the disease intensity on control was 33.56%. Formula containing bacterial suspension of E. Agglomerans Gg14D resulted in the lowest blast disease intensity and the highest yield per hill. The yield increment resulted from this treatment was 40% when compared to control. This result suggested that E. agglomerans Gg14D is one of promising candidate for bio-control agent to manage rice blast disease. However, the field trial is needed in order to evaluate the stability and effectiveness of the rhizobacteria formula under field condition at several localities. Keywords: rhizobacteria, rice blast disease, disease intensit
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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