CIENCIAS AGROPECUARIAS.

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Browsing CIENCIAS AGROPECUARIAS. by Subject "(THELL) DURUM)"

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    Caracterización morfoagronomica de 24 accesiones de trigo duro (Triticum Turgidum L. (Thell) Durum) en la localidad de Laguacoto III, canton Guaranda, provincia Bolívar
    (Universidad Estatal de Bolívar . Facultad de Ciencias Agropecuarias . Escuela de Ingeniería Agronómica, 2012) Remache Piñaloza, Julio Cesar; Monar, Carlos
    Durum wheat under different forms of consumption is one of the most important cereals for human consumption, such consumption has increased significantly due to rapid population growth, and excellent performance of semolina, proper balance of protein and favorable industrial conditions. The durum wheat production accounts for 8% of world production of wheat. In Ecuador, are not available varieties of durum wheat through the UEB Project Seed Production Research and School of Agricultural Engineering has been conducting research process with durum wheat germplasm from CIMMYT, Mexico. Durum wheat highlights the importance of high protein and gluten. The objectives in this research were: i) characterize 24 accessions of agronomically morpho durum wheat in the town of Laguacoto III. ii) Assess the main morphological and agronomic traits of 24 accessions of durum wheat and a control (Durum Wheat). iii) Select the best durum wheat accessions to study agroecological zones. iv) Establish a database of characterization and evaluation of 24 promising lines of durum wheat, which form the basis for future commercial varieties of durum wheat. This research was conducted in the town of Canton Guaranda Laguacoto III, province Bolivar design was a randomized complete block with 25 treatments and three repetitions. Analysis of variance were performed, correlation, linear regression and Tukey test at 5% to compare the means of accessions. Nutritional analysis was performed proximal to the top three accessions: Protein, ash, ether extract (EE), nitrogen free extract (NFE), fiber and gluten. The main results obtained in this study were: The average yield of durum wheat evaluated in this agro-ecological zone was 3 650 kg / ha. The highest average yield of durum wheat accession was recorded in T6 with 4 609 kg / ha at 13% humidity, exceeding the witness who gave up just 2 786 kg / ha. The variables that reduced the wheat yield by 70% in less tolerant accessions were mainly the incidence of virus and particularly the ear Fusarium (Fusarium nivale). The increased yield components of 100 durum wheat to 44% was the highest number of grains / spike, number of spikelets / spike, length of beards and kernel weight and weight in kg / plot at 100%. Proximal nutritional analysis of the top three accessions of durum wheat, the indicators, especially protein and gluten, are appropriate for the flour industry with an overall average of 12.91% protein and 17.3% wet gluten. Finally, this study allowed to select 20 accessions of durum wheat (Annex N0 6) with good morphology, agronomic and nutritional to continue the process of participatory research and released in the medium term commercial varieties of durum wheat with high yield potential and industrial quality