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Table 1 Mean and descriptive statistics of morphological traits in 662 doubled haploid association panel evaluated under normal and heat stress conditions over two growing environments

From: Genome wide association mapping for heat tolerance in sub-tropical maize

Trait Condition Mean Max Min LSD σ2 G σ2 GE H2
GY Normal 5.45 6.96 3.15 2.62 0.55*** 0.16*** 0.51
AD   71.17 78.81 66.99 4.00 3.87*** 0.29*** 0.77
SD   72.83 83.31 68.51 4.45 4.57*** 0.39*** 0.76
ASI   1.78 3.60 0.62 3.20 0.69*** 0.18*** 0.51
PH   175.44 191.51 151.56 28.44 61.93*** 6.17*** 0.53
EH   80.71 70.93 91.84 23.19 27.87*** 10.29*** 0.41
EPO   0.46 0.52 0.45 0.19 0.0004 .0002 0.41
GY Heat stress 3.46 4.58 2.55 2.57 0.35*** 0.25*** 0.38
SD   71.68 72.62 71.24 7.07 0.55*** 7.45*** 0.07
ASI   2.69 5.63 0.25 4.45 1.07*** 0.35*** 0.42
PH   149.13 153.13 144.07 29.04 15.14*** 42.45*** 0.17
EH   62.74 69.53 55.41 22.03 18.11*** 16.89*** 0.31
EPO   0.42 0.47 0.38 0.11 0.0004 .0002 0.32
  1. * = 0.05% significant, *** = 0.001% significant, σ2 G Genotype variance, σ2 GE Genotype x Environment variance, Max Maximum, Min Minimum, H2 broad-sense heritability, LSD Least significant difference, GY Grain yield, AD Days to 50% anthesis, SD Days to 50% silking, ASI Anthesis-silking interval, PH Plant height, EH Ear height and EPO Ear position