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TESISINDUKSI KETAHANAN TANAMAN JAGUNG (Zea mays L.) TERHADAP PENYAKIT BULAI MELALUI SEED TREATMENT SERTA PEWARISANNYA PADA GENERASI S1
No full textResistance to disease is an important trait in breeding influencing quality and
ultimately the crop yield. The induction of systemic resistance could be performed
to improve plant resistance to disease which is stimulating the plant defense
system by using elicitor application. It involves the coordination and expression of
a particular gene called SAR genes and characterized by the accumulation of
certain compounds such as or jasmonate acid.
The experiment consists of four steps. First step is preliminary experiment
to select the best non pathogenic rhizobacteria as biological elicitor. Selection of
their bacteria based on hypersensitive assesment, effect of rhizobacteria
application to seed viability and diseses inhibition. The main experiment consist
of three experiments. First, Selection of promising line. This experiment is aimed
to obtain the best line that possess highest raising resistance and most responsive
to treatment. This research utilized six F1 hybrids of maize i.e. C02, C05, C13,
C19, C20, and SC-139 4D. Four elicitors were tested as treatment namely non
pathogenic rhizobacteria Bio1 dan Bio2, Salicylic acid (Abio1) and
Benzothiadiazole-S-Methy/BTH (Abio2) by seed treatment. As control was used
Fungicides Dimethomorph+Metalaxyl. Experiment was conducted at open field
using spreader as inoculum source. Treated seeds then were planted and observed
until 42 days after planting. Resistance evaluation was done by comparing origine
resistance with induced resistance. Resistant plant was self-pollinated to obtain
S
The result revealed C20 is the most responsive to four kinds of elicitor. Two
of them, Bio1 and Abio1 were able to improve to be moderat resistant (MR) status
while Bio2 and Abio2 gave resistant (R) status. The measurement and detection
indicated that salicylic acid content tends to increase after inoculation by pathogen
P. maydis comparing with control and PR-1 gene was detected respectively.The
inheritance study also showed the increased resistance status could be inherited
into populations S
1. Under supervision of Dr. Ir. Aziz
Purwantoro, M.Sc. and Dr. Ir. Andi Khaeruni R., M.Si.
1 generation seed material. Second experiment is verification of induced
resistance status. Investigation was conducted by physiological and molecular
approach using salycilic acid content estimation and detection of PR-1 gene using
PCR technique. Third is inheritance study in S1 generation from line that possess
resistance raising.
1 generation and followed Mendelian inheritance pattern for the
ratio 15:1
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
PELESTARIAN PLASMA NUTFAH SALAK MELALUI KULTUR PUCUK
No full textPerbanyakan secara vegetatif mengakibatkan makin berkurangnya kualitas tanaman induk serta jumlah yang sangat terbatas. Sedangkan perbanyakan secara generatif akan menimbulkan ketidakpastian dari jenis kelamin tanaman Salak yang diperbanyak tersebut. Untuk mengatasi hal tersebut diatas maka kultur pucuk merupakan salah satu metode perbanyakan yang tepat untuk tanaman salak.
Perbanyakan yang dilakukan melalui kultur pucuk ini juga bertujuan sebagai pelestarian plasma nutfah tanaman salak secara ex situ sehingga erosi genetik dapat dihindarkan guna kepentingan program pemuliaan tanaman selanjutnya.
Penelitian ini bertujuan untuk mendapatkan kombinasi media yang sesuai untuk kultur pucuk tunas vegetatif. Media ½MS digunakan sebagai media dasar dengan penambahan kombinasi auksin dan sitokinin. Konsentrasi NAA (0,
Konservasi Anggrek Alam Vanda tricolor Lindl Asli Indonesia melalui Perbanyakan Somaklonal
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