Evaluación del comportamiento agronómico de cuatro líneas promisorias de cebada bajo las condiciones agroecológicas del sector Querochaca

Abstract

The present research work evaluated the agronomic behavior of four promising lines of barley, under the agro ecological conditions of the sector of Querochaca, the promising lines and the improved variety were provided by the INIAP cereals program, a completely random block design was employed with 5 treatments with 3 repetitions, in the research we studied variables such as days of tasseling, plant height, spike size, thatch type, number of grains per spike, yield, thousand grain weight, hectolithic or specific weight, type and color of grain and diseases, for each variable was used the test of Shapiro Wilks, homogeneity, ADEVA and Tukey to 5%, already finished the investigation the promising lines have been adapted to the agro ecological conditions of the field Querochaca in Cevallos canton, province of Tungurahua. Promising lines were obtained that stood out much more than others, the promising line CD-19-004 was the line that was better adapted to agro ecological conditions, presenting 85.33 days to the stem, plant height 125 cm, an intermediate stem, a medium grain, round shape, white color and good appearance, there was presence of diseases yellow leaf rust (Puccinia striiformis) with a severity of 38.8%, leaf rust (Puccinia hordei) present a severity of 6.67% and yellow dwarfism barley virus (BYDV) present traces of yellowing of the tip of few leaves, vigorous looking plant, CD-19-004 was the best promising line compared to the remaining three lines (CD-19-013, CMU-19-002, CMU-19-001) and surpassing the improved variety INIAP-CAÑICAPA 2003.