CONTENIDO PROTEICO Y AMILOSA EN 13 LÍNEAS AVANZADAS DE ARROZ DERIVADAS DE CRUCES INTERESPECÍFICOS ENTRE Oryza rufipogon G. y Oryza sativa L. ssp. japonica

Abstract

The Technical University of Babahoyo carries out a genetic improvement project in rice, where 13 advanced lines have been selected, which have been adapted in different areas of Ecuador, the experimental samples came from the dry season of 2021 (F₈) and rainy season of 2022 (F₉), in Santa Lucía, province of Guayas. This study has the following objectives: To determine the amylose and protein content of 13 advanced F₈ and F₉ rice lines compared to the SFL-11 variety; and Identify advanced rice lines with the best amylose content compared to the SFL-11 commercial variety. The samples were analyzed in the Grain Quality Laboratory of the Faculty of Agricultural Sciences of the Technical University of Babahoyo. The humidity of the samples was lowered to 11-12%. 1000 g of seeds were weighed, which went through the cleaning process, shelling, the whole grain was obtained and this in turn went to the polisher where the white mass was obtained. In the sorter, whole grains and broken grains were separated. To measure the variables of amylose and protein contents, whole grains were used, proceeding to measure with the Kett An-900 brand equipment, series 0F00049. The experimental design used in this study was a Randomized Complete Design (DCA), with 13 treatments (13 advanced lines) plus 1 control (SFL-11 variety) with 3 repeats per treatment. Analysis of variance and Tukey's 5% test were performed. Descriptive statistics were also used.