Preliminary study to determine phenotypic differences and sample size in Cacahuacintle corn
DOI:
https://doi.org/10.29312/remexca.v10i8.1765Keywords:
Cacahuacintle race, High Valleys of central Mexico, plots of cooperating farmers, random samplingAbstract
This study was carried out in spring-summer of 2016 in six communities of the municipality of Calimaya de Díaz González, State of Mexico to sample land of cooperating farmers and estimate phenotypic differences in plant and corn dimensions in the Cacahuacintle breed. In 30 plots, of one hectare each, distributed in the Municipal District, San Lorenzo Cuauhtenco, Santa María Nativitas, San Marcos de la Cruz, San Diego La Huerta and Zaragoza de Guadalupe, 50 plants and corn per producer were considered at random (almost 21 000 data). Simple statistics and values of n were calculated with two methodologies. With a principal component analysis, the relationship between producers, communities and variables was analyzed. The most outstanding results showed that there are important phenotypic differences in all characteristics. The values of n would allow sampling plots where Cacahuacintle is planted in that municipality, with method 1, only the population size should be known and a value assigned to the sampling error should be chosen. With the application of method 2 or other complementary techniques, fewer plants could be sampled than with method 1 but the arithmetic mean, standard deviation, standard error, coefficient of variation or proportions between two of these should be known. In the four quadrants of the biplot, at least three of the five cooperating farmers in each locality were grouped. There was a positive and significant correlation between the number of quality leaves for wrapping tamales (NHT) with the number of grains and rows of grain in the corn, this trend was also observed between the first and the length and diameter of the spine. Thus, NHT could be used as an indirect selection criterion to increase the size of the corn.
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in Revista Mexicana de Ciencias Agrícolas accept the following conditions:
In accordance with copyright laws, Revista Mexicana de Ciencias Agrícolas recognizes and respects the authors’ moral right and ownership of property rights which will be transferred to the journal for dissemination in open access. Invariably, all the authors have to sign a letter of transfer of property rights and of originality of the article to Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP) [National Institute of Forestry, Agricultural and Livestock Research]. The author(s) must pay a fee for the reception of articles before proceeding to editorial review.
All the texts published by Revista Mexicana de Ciencias Agrícolas —with no exception— are distributed under a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows third parties to use the publication as long as the work’s authorship and its first publication in this journal are mentioned.
The author(s) can enter into independent and additional contractual agreements for the nonexclusive distribution of the version of the article published in Revista Mexicana de Ciencias Agrícolas (for example include it into an institutional repository or publish it in a book) as long as it is clearly and explicitly indicated that the work was published for the first time in Revista Mexicana de Ciencias Agrícolas.
For all the above, the authors shall send the Letter-transfer of Property Rights for the first publication duly filled in and signed by the author(s). This form must be sent as a PDF file to: revista_atm@yahoo.com.mx; cienciasagricola@inifap.gob.mx; remexca2017@gmail.
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International license.
