Table 1. Correlation coefficients between the morphological traits of spikelets in the polonoid species, T. durum, T. aestivum, and their F1 hybrids, first floret. Ti = Triticum ispahanicum, Tdp = T. turgidum subsp. polonicum, Tp = T. petropavlovsky, K19 = T. durum subsp. durum cultivar Kharkivs'ka 19, and K28 = T. aestivum subsp. aestivum cultivar Kharkivs'ka 28. Significant correlations are indicated with an asterisk (*).
 Trait pairs  Hybrids and parental forms
 Ti  F1 Ti/K19  K19  Ttp  F1 Ttp/K19  Tp  F1 Tp/K28  K28
 Glume length-grain length  0.16  0.58 *  0.32  -0.40  0.50 *  0.69 *  0.26  0.21
 Glume width-grain length  -0.40  0.05  0.08  -0.29  0.38  0.35  -0.02  0.34
 Lemma length-grain length  0.35  0.54  0.49 *  -0.21  0.42  0.71 *  0.43 *  0.39
 Palea length-grain length  0.32  0.32  0.18  -0.18  0.33  0.65 *  0.23  0.47 *
 Glume length-grain weight  -0.11  0.74 *  -0.18  -0.68 *  0.31  0.29  0.20  0.16
 Glume width-grain weight  0.13  -0.03  -0.28  -0.72 *  0.30  0.04  -0.26  -0.15
 Lemma length-grain weight  0.15  0.68 *  -0.01  -0.53 *  0.20  0.39  0.32  0.01
 Palea length-grain weight  0.42  0.67 *  0.07  -0.42  -0.11  0.28  0.09  0.49 *
 Glume length-glume width  0.48 *  0.36  0.09  0.81 *  0.85 *  0.52 *  0.73 *  0.21
 Glume length-lemma length  0.72 *  0.97 *  0.44 *  0.77 *  0.91 *  0.79 *  0.87 *  0.40
 Glume length-palea length  0.62 *  0.83 *  0.53 *  0.66 *  0.70 *  0.39  0.71 *  0.27
 Lemma length-palea length  0.55 *  0.83 *  0.41  0.60 *  0.71 *  0.55 *  0.78 *  0.06

Table 2. Correlation coefficients between the morphological traits of spikelets in the polonoid species, T. durum, T. aestivum, and their F1 hybrids, second floret., T. durum, T. aestivum, and their F1 hybrids, first floret. Ti = Triticum ispahanicum, Tdp = T. turgidum subsp. polonicum, Tp = T. petropavlovsky, K19 = T. durum subsp. durum cultivar Kharkivs'ka 19, and K28 = T. aestivum subsp. aestivum cultivar Kharkivs'ka 28. Significant correlations are indicated with an asterisk (*).
 Trait pairs  Hybrids and parental forms
 Ti  F1 Ti/K19  K19  Ttp  F1 Ttp/K19  Tp  F1 Tp/K28  K28
 Glume length-grain length  0.44 *  0.94 *  0.49 *  0.08  -0.03  0.18  0.42  0.38
 Glume width-grain length  0.35  0.71 *  0.15  0.13  -0.01  -0.08  0.21  0.28
 Lemma length-grain length  0.63 *  0.84 *  -0.03  0.18  0.07  0.37  0.00  0.11
 Palea length-grain length  0.39  0.76 *  0.23  0.08  0.18  0.38  -0.12  0.25
 Glume length-grain weight  0.04  0.84 *  -0.05  -0.20  0.02  -0.28  0.23  0.40
 Glume width-grain weight  0.40  0.84 *  -0.54 *  0.09  -0.00  0.02  -0.06  0.12
 Lemma length-grain weight  0.22  0.85 *  -0.20  0.29  0.01  -0.06  -0.05  -0.07
 Palea length-grain weight  0.04  0.77 *  0.03  0.17  -0.06  0.05  0.09  0.33
 Glume length-glume width  0.41  0.77 *  0.44 *  0.67 *  0.87 *  0.37  0.81 *  0.08
 Glume length-lemma length  0.64 *  0.91 *  0.37  0.48 *  0.81 *  0.45  0.78 *  -0.12
 Glume length-palea length  0.49 *  0.79 *  0.47 *  0.35  -0.17  0.35  0.43  0.17
 Lemma length-palea length  0.34  0.92 *  0.58 *  0.44 *  0.02  0.71 *  0.64 *  0.57 *