Selection of high yielding wheat genotypes and yield characteristics in the edaphoclimatic conditions of the bolivian highland

Abstract

Bread wheat is a crop of national importance in Bolivia. Thus, the objective of the study was to select high productivity genotypes and identify yield characteristics of bread wheat, under edaphoclimatic conditions of the Bolivian Altiplano. The experiment was carried out during the 2014-2015 agricultural cycle, at the Kallutaca Experimental Station, of the Public University of El Alto. Fifteen genotypes of bread wheat were evaluated, being these in the category of elite lines, coming from the National Wheat Program, the National Institute of Agricultural and Forestry Innovation (INIAF), and the International Maize and Wheat Improvement Center (CIMMYT). The statistical delineation used was completely random blocks, with 3 repetitions. The characteristics days to flowering, days to maturity, height of plant, length of ear and weight of thousand grains; leaf area and grain yield, presented significant differences (P <0.01 and 0.05). The genotype L315, showed precocity traits (180 days) and the average grain yields were 1899 kg ha^-1 to 4944 kg ha^-1. The genotypes L327, L329 and L315 were selected, depending on precocity and productivity. The path coefficient analysis identified components of direct and indirect effect.