Document Type : Research Paper
Authors
1 Ph.D Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili,-Tabriz-Iran Email: b.tahmasebpour@uma.ac.ir Email: tahmasbpor@yahoo.com Tel: 09148917394 ORCID: 0000-0002-0710-8650
2 Professor., Department of plant genetics and production engineering, Faculty of agriculture and natural resources, University of Mohaghegh Ardabili,,Ardabil, Iran
3 Associate Prof., Department of Agricultural Biotechnology, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran Email:tarinejad@azaruniv.edu Email: tarinejad@yahoo.com Tel: 09141043508 ORCID: 0000-0002-8418-7663
4 Associate Prof., Department of Agronomy and plant breeding, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran. Email: hmohammadi@azaruniv.edu Email:hamidmohammadi78280@gmail.com Tel: 09144091319 ORCID: 0000-0001-9451-3250
5 Professor., Department of plant genetics and production engineering, Faculty of agriculture and natural resources, University of Mohaghegh Ardabili-Ardabil-Iran Email: ebadi@uma.ac.ir Tel: 09141512878 ORCID: 0000-0002-3951-6747
Abstract
For identification of correlations and relationships among different traits in bread wheat, 30 genotypes were investigated as sub-factors under the split plot experiment in in the completely randomized design in the research greenhouse of Azerbaijan Shahid Madani University with three replications during the 2016-2017 crop season, under conditions of normal irrigation, and moisture stress of flowering stage (as main factors). Analysis of grain yield correlation coefficients under normal conditions indicated that the number of kernels per spike, 1000 seed weight, and in stress condition, the number of kernels per spike, with the most direct positive effect are the important and effective traits in grain yield. Based on the results of the analysis of the grain yield correlation coefficients under stress condition, number of kernels per spike, grain filling rate, grain filling period, straw yield, and under normal conditions, the number of kernels per spike, 1000 seed weight, flag leaf area, Spike density and spike length, are considered as the traits affecting grain yield. According to the canonical correlation analysis, there was a significant correlation between the two canonical variables resulting from Spikelet traits with grain yield per plant and spike density at both normal and drought conditions. As a selection criterion in a greenhouse, the number of seeds per spikelet can be an appropriate criterion under normal irrigation conditions to increase grain yield per plant, while under drought stress of flowering to increase spike density, the number and weight of seeds per spikelet can serve as an appropriate criterion.
Keywords
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