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Interaksi Genotipe X Lingkungan Terhadap Karakter Agronomi Dan Komponen Hasil Beberapa Calon Varietas Jagung Hibrida (Zea Mays L.) Di Kabupaten Tuban
No full textTanaman jagung sebagai salah satu komoditas strategis tanaman pangan
terpenting kedua di Indonesia diharapkan bisa memenuhi kebutuhan pangan
masyarakat. Kebutuhan jagung semakin meningkat seiring dengan peningkatan
penduduk. Peningkatan kebutuhan jagung ini harus diimbangi dengan peningkatan
produksi jagung yang tinggi. Peningkatan produksi jagung bisa dilakukan dengan
teknologi bahan tanam yang berkualitas dan berdaya hasil tinggi seperti varietas
bersari bebas dan hibrida. Adanya interaksi genotipe x lingkungan menunjukkan
perbedaan respon tanaman terhadap lingkungan tertentu. Hal ini menimbulkan
kesulitan dalam pemilihan genotipe harapan apabila terjadi interaksi genotipe x
lingkungan yang tinggi. Oleh karena itu, pada program pemuliaan tanaman
interaksi tersebut penting untuk diidentifikasi dalam memilih genotipe yang cocok
pada kondisi lingkungan tertentu. Tujuan penelitian ini adalah memperoleh
informasi mengenai interaksi genotipe x lingkungan terhadap karakter agronomi,
komponen hasil dan memperoleh informasi calon varietas jagung hibrida yang
mempunyai keragaan baik dan berdaya hasil tinggi di Kabupaten Tuban.
Pelaksanaan penelitian dilaksanakan pada bulan Januari - Mei 2019 di Desa
Bulujowo, Kecamatan Bancar dan Desa Tawaran, Kecamatan Kenduruan,
Kabupaten Tuban. Penelitian ini menggunakan metode RAK (Rancangan Acak
Kelompok) dengan 3 kali ulangan pada masing-masing lokasi. Perlakuan yang
digunakan dalam percobaan ialah 10 genotipe, 5 calon varietas jagung hibrida dan
5 varietas pembanding yaitu Bisi 18, Pertiwi 3, Adv 777, P36 dan Bisi 2. Sehingga
terdapat 10 perlakuan dan 3 kali ulangan sehingga terdapat 30 satuan percobaan
setiap lokasi. Sampel pengamatan diambil dari petak panen sebanyak 20 tanaman.
Plot percobaan memiliki ukuran masing-masing 3,5 m x 3,5 m yang terdiri dari 5
baris dengan 12 lubang tanam setiap barisnya dengan jarak tanam antar baris 70 cm
x 30 cm. Setiap lubang tanam diisi 2 tanaman sehingga terdapat ± 120 tanaman per
plot. Variabel yang diamati dalam penelitian ini ialah variabel pada karakter
agronomi, dan komponen hasil. Pengamatan dilakukan melalui pengambilan
sampel untuk seluruh variabel. Karakter agronomi yang diamati ialah tinggi
tanaman, tinggi letak tongkol, jumlah daun panjang daun, lebar daun, anthesis
silking interval, umur silking, umur panen. Sedangkan karakter komponen hasil
yang diamati ialah husk cover, panjang tongkol, unfilling cob tip, diameter tongkol,
jumlah baris biji, bobot per tongkol, bobot pipilan tongkol, bobot tongkol per plot,
bobot 100 biji, bobot gelondong (ton ha-1), rendemen (%), konversi hasil (ton ha-1).ii
Kemudian dilakukan beberapa analisis data diantaranya analisis ragam,
kehomogenan ragam, ragam gabungan dan skoring nilai keragaan.
Berdasarkan ragam gabungan interaksi genotipe x lingkungan nyata terjadi
pada karakter jumlah daun, umur silking, umur panen, husk cover, bobot tongkol
perplot, rendemen, bobot gelendong dan konversi hasil. Interaksi genotipe x
lingkungan yang terjadi menunjukkan bahwa perbedaan respon diantara dua lokasi
penelitian. Berdasarkan hasil skoring keragaan yang menggunakan karakter penting
tanaman jagung seperti: jumlah daun, umur silking, umur panen, husk cover, bobot
tongkol per plot, rendemen, bobot gelendong, konversi hasil. Genotipe Nusa 4
mempunyai keragaan yang baik dan daya hasil tinggi pada lokasi Bulujowo. Karena
memiliki keunggulan karakter, seperti: jumlah daun, umur silking, umur panen,
bobot tongkol per plot, rendemen, bobot gelendong, konversi hasil. Sedangkan,
genotipe Nusa 4 dan 5 mempunyai keragaan yang baik dan daya hasil tinggi pada
lokasi Tawaran. Genotipe Nusa 4 pada lokasi Tawaran memiliki keunggulan
karakter umur silking, umur panen, bobot tongkol per plot dan bobot gelendong.
Genotipe Nusa 5 pada lokasi Tawaran memiliki keunggulan karakter bobot
gelendong dan konversi hasil
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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