Chemical and physical variability of traditional varieties of corn (Zea mays L.) grown in the Juruá Valley, Acre, Brazil
Abstract
The traditional varieties of maize grown by family farmers are a source of genetic variability and are essential for food security. Thus, the present study aims to evaluate, based on physical and chemical components, the behavior of the genetic variability of traditional maize cultivated on non-flooded and floodplain areas, in the Juruá region, state of Acre. The characteristics consisted of the determination of dry matter, mineral material, crude protein, ether extract, gross energy, neutral detergent fiber, starch and in vitro digestibility of dry matter, vitreousness and grain density. Data were analyzed using descriptive statistics, associated with multivariate analysis of principal components (PCA), with the aid of the R software. By means of the PCA, the varieties grown on non-flooded and floodplain areas formed 3 distinct groups, in which the vitreosity in the grains ranged from 73.7% to 79.46%, so that the reddish grain varieties had a greater presence of endosperm vitreous and higher density, with a strong and positive correlation between these variables. The yellow and orange-yellow grain varieties showed greater adherence to energy, starch and greater digestibility. Therefore, the traditional varieties cultivated on non-flooded and floodplain areas, present variations in relation to the physical and chemical analyses.
Keywords: nutritional value; genetic resources; on-farm conservation.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Brazilian Animal Science/ Ciência Animal Brasileira
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
