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. 2021 Jun 28;12:685488. doi: 10.3389/fpls.2021.685488

Table 1.

Estimation of variance components for grain yield and agronomic traits assessed in 3 years and across trials under optimum and drought conditions.

Optimum Drought Optimum Drought
GY AD PH GY AD PH GY AD PH GY AD PH
Year-2017 Year-2019
σG2 0.17** 1.07** 34.30** 0.08* 1.94** 34.56** 0.12** 0.57** 17.10** 0.07* 1.39** 27.82**
σT2 0.48 143.25 1072.14 - - - 0.24 115.35 538.31 - - -
σGT2 0.00 0.00 1.08** - - - 0.05** 0.05** 17.46** - - -
σe2 2.23 3.78 227.62 0.76 1.88 190.87 2.19 4.12 251.28 0.61 2.12 187.59
H2 0.68 0.89 0.81 0.17 0.67 0.27 0.64 0.82 0.67 0.18 0.57 0.23
Mean 6.05 64.24 236.04 3.28 63.41 209.03 6.34 65.75 247.28 2.29 67.48 213.87
CV (%) 7.98 1.57 2.57 10.95 1.79 3.42 7.11 1.32 2.15 14.60 1.64 3.07
LSD0.05 0.95 1.97 11.90 0.70 2.23 14.01 0.88 1.70 10.42 0.66 2.17 12.87
Year-2018 Across 3 years
σG2 0.36** 1.33** 63.68** 0.25 2.08 79.27 0.19** 0.80** 35.26** 0.12** 0.94** 40.82**
σT2 1.11 149.85 39.00 - - - 0.00 83.11 509.71 0.25 21.97 0.00
σGT2 0.21** 0.63** 30.58** - - - 0.14** 0.59** 25.12** 0.04* 1.08** 12.46**
σe2 1.91 2.68 172.82 0.50 2.40 117.84 2.10 3.33 210.71 0.61 2.05 159.48
H2 0.91 0.96 0.95 0.50 0.63 0.57 0.91 0.96 0.95 0.96 0.97 0.97
Mean 8.02 66.68 252.11 3.11 72.79 212.09 6.69 65.55 243.96 2.89 67.90 211.91
CV (%) 8.58 1.75 3.29 16.24 1.76 3.91 8.07 1.55 2.83 14.41 1.68 3.56
LSD0.05 1.35 2.29 16.28 0.99 2.51 16.26 1.06 1.99 13.53 0.82 2.24 14.77

GY, grain yield; AD, anthesis date; PH, plant height.

*

and

**

indicate significance at P < 0.05 and P < 0.01, respectively.