Guidelines for Authors

The aim of this guide is to indicate to our contributors the criteria requested by the journal ATM for manuscript
submission. Only original, unpublished, and manuscripts not submitted to other journals will be accepted. Each manuscript will be submitted for revision to a group of experts nominated by the Editorial Committee of the journal.

Type of papers to be published. ATM publishes contributions from the Agricultural Sciences and related topics, in Spanish and English. These can be submitted as: scientific articles, research notes, review articles and cultivar descriptions.

Scientific articles. A manuscript will be considered as a scientific article by the ATM Editorial Committee if it is based on results of original and unpublished research in which the interaction between two or more treatments has been studied in several experiments, locations or years to obtain valid conclusions. The maximum accepted size of an article is 20 letter-size pages written at double space (24 lines per page, 70 strikes per line), including tables and figures. It has to include the following sections:

1) Title in Spanish and English, 2) Author(s), 3) Authors' affiliation, 4) Authors' address and electronic mail, 5) Abstract (in Spanish), 6) Key words (in Spanish), 7) Abstract (in English), 8) Key words (in English), 9) Introduction, 10) Materials and methods, 11) Results and discussion, 12) Conclusions, and 13) References.

Research note. Manuscript referring to preliminary yet relevant results that the author wants to publish before finishing a research project. Its maximum size is eight pages as previously described, including tables and figures. It has the same sections as the scientific articles, but sections 9 to 12 must be written without section titles.

Review article. Is a manuscript generated through the compilation and analysis of actual or new subjects important to the scientific community, by means of which the author expresses his/her opinion and establishes conclusions on the subject. Maximum size is 20 pages as previously described including tables and figures. It contains the sections 1 to 9, as above mentioned. Its content must be divided in sections according to the subject and generate conclusions or final comments. This is followed by the references.

Cultivar description. It's a paper intended to let the scientific community know about the origin and characteristics of a new cultivar, clone, hybrid, and other genotype. Maximum extent is six pages as those above mentioned. It has the 1 to 4, and 13 sections as previously described. The description must be written without section titles, and provide information on: importance of the cultivar, clone or hybrid being described, its origin, genealogy, method used for its development, and phenotypic and agronomic characteristics (reaction to diseases, soil condition, yield from several cycles and locations), commercial, industrial, and nutritional quality, areas of adaptation, and on the availability of seed or vegetative reproduction organs. Figures and tables might be exceptionally included.

Manuscript elaboration

Title. The title must provide in a brief way a clear and precise idea of the content, it should have a maximum of 12 words, and be written in Spanish and English.

Abstract. A less than 250 words synthesis of the following information on the research: justification, objectives, location(s) and year(s) where and when the research work was conducted, a brief description of the methods used, results, and conclusions. The text must be written without neither paragraphs nor titles.

Keywords. Those are words written after the summary or abstract that are used to include the article in indexes and information systems. Select from 3 to 5 words, without including words used in the title. Scientific names of the species mentioned in the summary or abstract if not included in the title, must be included as keyword (and in "palabras clave" in Spanish).

Introduction. The content of this section is related to the specific subject and objectives of the research, describes the problem to be solved, the importance of the research, and the bibliographic background that supports the hypothesis and objectives of the research. Preferably up to date scientific articles published in wide circulation periodicals should be included in the review.

Materials and methods. This section describes the experiment allocation(s), materials, equipment, methods, technologies, experimental designs and data analysis. Information of more than one experiment, a location, a cycle, or a year is requested.

Results and discussion. Results obtained through the research are presented, and their similarities and differences in comparison to those reported in other published research papers are mentioned. The relationship cause-effect derived from the analysis must be emphasized in the discussion.

Conclusions. Make conclusions derived from relevant results obtained in the research and in agreement with the established hypothesis and objectives.

References. Preferably includes references of scientific articles published in wide circulation, periodic journals. Use only references related to the research. All references mentioned in the text must appear in the references section and vice versa.

Format

• Documents should be sent as both electronic file and a printed copy, they must be typed using a recent version of Word Processor, written using the type Times New Roman 11 points. Use letter size paper (21.5 cm wide, 28 cm long) (8.5 inches wide, 11 inches long), and 2.54 cm (1 inch) margins on the four sides.

• Text lines must be numbered initiating at each page. Section titles: summary or abstract, introduction, materials and methods, results and discussion, conclusions, acknowledgements (if needed), and references must be written in capital bold letters aligned to the left.

• The metric decimal system, and the abbreviations of the International System of Units (IS) must be used in texts, tables, and figures..

• Manuscript figures and tables must be inserted in the appropriated place within the text. Also Excel files containing data on the figures that allows, if needed, to modify them must be included. If pictures need to be included, they must be in black and white (gray tones), original and in TIFF format at 300 dpi, JPEG (100% quality), Adobe Illustrator, Adobe Photoshop and have to be sent in a separate file.

• Figure titles must be written in bold style letters with an initial capital letter and lower case letters. Fill bar and pie graphics with clearly contrasting designs and well defined different symbols for line graphics should be utilized.

• Table titles must be written in bold letters with an initial capital letter and lower case letters. Tables must be typed using the table command their maximum extent is one page. Tables must not show vertical lines, and only three horizontal lines are accepted; the head of columns is written between the first two lines and the third line is the end of the table. Tables and figures must be numbered progressively according to their place in the text, and to have all the necessary information for easy interpretation, without having to read the text..

• Table and figure information must not be duplicated and both must include statistical tests..

• If the author(s) wish to express his recognition for collaboration or financial support received during any phase of the research process from either persons or institutions, an acknowledgements section can be included. If this is the case, it must be placed before the references section.

How to write references within the text. Write the last name of authors up to two, if there are three or more, write the first author's last name followed by the words et al. (in italics), and the year of publication. If the reference is integrated to the text, the year must be written between parenthesis, examples: Winter (2002) showed ..., Lindsay and Cox (2001) stated that..., Barber et al. (2000) selected .... If the reference is located at the end of a sentence, it must be written between parenthesis as shown in the following examples (Winter, 2002), (Lindsay and Cox, 2001), (Barber et al., 2000). For corporations as authors, write the whole name of the corporation as indicated for personal authors if it is short or the acronym if it is too long.

References. References must be enlisted following the alphabetical order by the first author's last name. They should be written as follows:

1. Articles in periodicals.

- Write the names of all authors as follows: Write the first author's last name and the initial of his second last name, a coma, initial(s) of his first name(s). To separate the name of two authors, use the word and or its equivalent in the original language of the reference. When there are more than two authors, the names are separated by a semicolon and between the penultimate and the last one the word and or its equivalent. After the author's name(s) the following data are written separated by periods:

- Year of publication.
- Title of the article.
- Name of the periodical and between parentheses the name of the country of production (only if it is an obscure journal of low circulation).
- Number of the volume, colon, number of the initial page, dash, number of the last page in the article.

2. Books and serial publications.

- Author(s) as in articles in periodicals.
- Year of publication.
- Title.
- Translation (the translated edition number, the original language, and the name of the translator).
- Number of edition.
- Name of the publisher.
- Place of publication (city, state, country).
- Total number of pages (150 p.) or consulted pages (example: p. 15; p. 30-45; p. 5,7,15, and 50).
- Name and number of the series between parentheses.

3. Articles, chapters or summaries in collective publications (books, proceedings, and other). Authors, as in articles in periodicals:
- Year of publication.
- Title of the article chapter or summary.
- Latin word In (italics) colon (:).
- Editor(s), compiler(s), or coordinator(s). At the end of the name(s) the following abbreviations (ed. or eds.), (comp. or comps.), or (coord. or coords.) written accordingly.
- Title of the collective publication.
- Translation as in books and publications in series.
- Edition number.
- Editorial name.
- Place of publication (city, state, country).
- Pages of the article i. e. (p. 15-35).

Further information on how to cite:

1. Mendez A., M y Ríos R., S. A. 1999. Normas para escribir artículos científicos destinados a publicarse en la Revista Agricultura Técnica en México. Agric. Tec. Mex. 25:135-167.

2. Mendez A., M y Ríos R., S. A. 2001. Normas para escribir artículos científicos destinados a publicarse en la Revista Agricultura Técnica en México. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias. México, D. F. 50 p.

3. Web: www.inifap.gob.mx/

Address:

Any material intended to be published, and the correspondence related to the magazine editorial production and distribution should be sent to:

Editor in chief

Revista Agricultura Técnica en México
Campo Experimental Valle de México
Km 18.5 carretera Los Reyes-Lechería
56230 Chapingo, Texcoco, Edo. de México
México

or to our P.O. Box address:

Editor-in-Chief
Apartado Postal 10
56230 Chapingo, Texcoco, Edo. de México
México

For more information:
Telephone and Fax: (595) 954-29-64 (direct)
Telephone: (595) 954- 28-77 Ext. 143
Email: revista_atm@yahoo.com.mx

All correspondence related to the scientific content of any published material must be sent directly to the first or the corresponding author.

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© 2009 Instituto Nacional de Investigaciones
Forestales, Agrícolas y Pecuarias,
Campo Experimental Valle de México
Km 18.5 Carr. Los Reyes-Lechería
56230 Texcoco, Estado de México
Tel. y Fax 01 595 9542964

revista_atm@yahoo.com.mx