Calidad molinera, contenido de amilosa y proteína en cuatro líneas promisorias de arroz (Oryza sp.) en siembra por trasplante (3-4 plantas por sitio) en Daule – provincia del Guayas

In this study, milling quality, amylose and protein content (%) were studied in four promising lines of rice (Oryza sp. ) named: JxP 7, JxP 17, JxP 37, JxP 38 and the commercial variety SFL-11 (control), in samples that came from transplant sowing lots (3-4 plants per site), from the Daule canton, province of Guayas. For the analysis of the variables, a Completely Random Design (DCA) was applied with five cultivars (4 lines and the control) and three repetitions per treatment. Analysis of variance, the Tukey test 5%, principal component analysis, cluster analysis (Euclidean Distance), Pearson correlations analysis and relative variability (%) were applied. The study describes milling processes where the following variables were analyzed: Husk (%), dust (%), classified rice (%) or whole grains, rice (%) or broken grains, white belly (%), amylose content (%) and protein content (%). Regarding the results, it was determined that the line 17 and the commercial variety SFL-11 presented superior yields of whole grain rice. Line 17 presented the highest percentage of whole grain. With respect to the variables broken grain and dust, the promising lines 7, 17, 38 and the SFL-11 (control) obtained the lowest percentage. Regarding the protein content, the commercial variety SFL-11 obtained the best percentage (%). Promising lines 7, 17, 37 and 38 presented the best results in amylose content. The cluster analysis grouped the varieties with similarity in characteristics, placing the commercial variety SFL-11 in Class I, and promising lines 7, 17, 37 and 38 in Class II.

• Glavni avtor: Bravo Ribera, Ibeth Dayanna (author)
• Format: bachelorThesis
• Izdano: 2023
• Teme: Arroz; Calidad molinera; Líneas promisorias; Amilosa
• Online dostop: http://dspace.utb.edu.ec/handle/49000/13841