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Table 5 Evaluated of GCA effects in eight rice parents of all studied traits for the two experiments of normal and drought stress conditions

From: Improvement of drought tolerance in rice using line X tester mating design and biochemical molecular markers

Parents Heading date (days) Plant height (cm) Number of filled grains/ panicle 1000−grain weight (g) Grain yield/plant (g)
N S N S N S N S N S
Lines           
L1 4.89** 13.78** 2.77** 6.82** − 9.37** − 3.80** − 7.36** − 5.18** − 14.71** − 1.54**
L2 36.80** 20.26** 8.84** 14.38** − 12.70** − 6.28** − 29.38** − 21.04** − 2.42** − 4.67**
L3 − 54.22** − 69.27** − 17.60** − 28.18** 58.59** 36.44** 61.22** 37.96** 33.28** 44.87**
L4 2.46** 13.09** 3.60** 2.91** − 31.08** − 19.18** − 14.45** − 7.04** − 9.12** − 15.62**
L5 10.07** 22.14** 2.39** 4.07** − 5.44** − 7.18** − 10.03** − 4.70** − 7.03** − 23.04**
LSD 0.05 1.39 1.27 1.68 1.52 3.48 2.78 4.28 3.91 1.09 1.03
0.01 1.67 1.83 2.11 2.41 4.16 3.42 5.36 4.35 1.21 1.35
Testers           
T1 − 8.47** − 14.0** − 3.86** − 5.02** 17.32** 24.05** 6.19** 10.13** 4.85** 6.02**
T2 − 23.07** − 6.38** − 9.06** − 13.48** 11.03** 7.66** 8.02** 13.22** 10.39** 1.82**
T3 31.54** 20.38** 12.92** 18.50** − 28.35** − 31.71** − 14.21** − 23.35** − 15.24** − 7.84**
LSD 0.05 2.37 1.69 1.03 1.17 2.15 2.22 2.79 2.55 1.42 1.29
0.01 2.79 2.03 1.42 1.83 2.77 3.04 3.14 3.21 1.87 1.74
Parents Maximum root length (cm) Number of roots/plant Root volume Root xylem vessel number Osmotic adjustment
N S N S N S N S
Lines          
L1 − 2.89** − 1.94** − 15.66** − 9.56** − 6.37** − 4.17** − 17.49** − 12.58** 2.39**
L2 − 8.13** − 3.11** − 10.08** − 24.05** − 14.05** − 10.23** − 8.34** − 10.09** 15.66**
L3 19.84** 16.83** 38.22** 52.11** 53.28** 28.64** 33.84** 34.97** − 30.81**
L4 − 5.67** − 7.22** − 7.88** − 10.31** − 22.70** − 8.36** − 2.78** − 4.07** 3.19**
L5 − 3.15** − 4.56** − 4.60** − 8.19** − 10.16** − 5.88** − 5.23** − 8.23** 9.57**
LSD 0.05 1.13 1.26 1.23 1.49 1.51 1.44 2.18 2.11 0.23
0.01 1.62 1.89 1.73 1.83 1.73 2.02 2.31 2.53 0.46
Testers          
T1 13.86** 22.06** 3.18** 5.04** 35.34** 17.56** 19.42** 13.07** − 6.89**
T2 16.04** 7.18** 6.24** 11.89** 26.86** 14.08** 3.57** 6.25** − 11.05**
T3 − 29.90** − 29.24** − 9.42** − 16.93** − 62.20** − 31.64** − 22.99** − 19.32** 17.94**
LSD 0.05 1.02 0.93 1.78 1.53 1.36 1.25 1.16 0.86 0.51
0.01 1.32 1.26 2.14 2.22 1.69 1.43 1.74 1.16 0.76