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Table 1 Mean performance, phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV), and broad- sense heritability (h2b) of traits recorded under normal and water deficit conditions in smooth bromegrass genotypes

From: Marker-trait association analysis for drought tolerance in smooth bromegrass

Traits

Mean ± SD

Change (%)

PCV (%)

GCV (%)

h2b (%)

Normal

Stress

Normal

Stress

Normal

Stress

Combined

Normal

Stress

DPE (day)

58.89 ± 7.62

56.61 ± 6.84

3.87a

9.37

10.49

8.95

10.24

95.32

91.27

95.13

DA (day)

80.36 ± 6.83

77.83 ± 6.17

3.15a

6.55

7.07

6.35

6.89

95.60

94.05

95.06

PH (cm)

96.57 ± 16.22

75.55 ± 13.69

21.77b

6.08

12.41

4.89

11.68

73.05

64.72

88.59

FLL (mm)

141.62 ± 28.40

152.54 ± 29.96

−7.71a

10.36

11.50

8.88

10.26

84.73

73.46

79.62

FLW (mm)

6.99 ± 1.33

7.18 ± 1.73

−2.72n.s

12.25

14.39

11.76

13.46

92.73

92.17

87.51

PL (cm)

16.03 ± 2.13

16.00 ± 2.34

0.19n.s

9.14

10.21

8.42

9.42

89.08

84.92

85.17

NS (No. plant−1)

187.58 ± 78.75

149.57 ± 68.14

20.26b

27.32

30.87

23.77

27.42

86.40

75.75

78.89

DMY (g/plant)

99.25 ± 46.61

57.12 ± 28.75

42.45b

23.13

27.45

19.09

22.30

77.99

68.13

66.01

CD (cm)

25.76 ± 5.25

23.28 ± 4.19

9.63b

14.54

12.97

13.74

12.02

89.66

89.34

85.89

WGV

2.47 ± 0.97

3.58 ± 1.35

−44.94b

20.66

19.88

16.18

16.84

75.19

61.33

71.80

  1. GCV Genotypic coefficient of variation, PCV Phenotypic coefficient of variation, SD Standard deviation
  2. CD Crown diameter, DA Days to anthesis, DMY Dry matter yield, DPE Days to panicle emergence, FLL Flag leaf length, FLW Flag leaf width, NS Number of stems per plant, PH Plant height, PL Panicle length, WGV Winter growth vigor
  3. a, b, and c significant at the 0.05, 0.01, and 0.001 probability levels, respectively; ns: not significant