Supplementary Table 4: Pearson correlation between traits under normal conditions and cover house /late sown method during wet season 2012 and dry season 2013

Season / Wet season 2012 / Dry season 2013
Treatment / Normal conditions / Cover house / HSI for SF / HSI for YP / Normal sowing / Late sowing / HSI for SF / HSI for YP
Trait / FT (days) / AHDD till flowering / SF (%) / YP (g) / FT (days) / AHDD till flowering / SF (%) / YP (g) / FT (days) / AHDD till flowering / SF (%) / YP (g) / FT (days) / AHDD
till flowering / SF (%) / YP (g)
Wet season 2012 / Normal conditions / FT(days)
AHDD days till flowering / 0.999***
SF (%) / 0.006 / 0.011
YP (g) / 0.184 / 0.188 / 0.010
Cover house / FT(days) / 0.866*** / 0.867*** / 0.006 / 0.094
AHDD days till flowering / 0.873*** / 0.873*** / 0.002 / 0.101 / 0.999***
SF (%) / 0.242 / 0.235 / 0.317 / 0.235 / 0.102 / 0.104
YP (g) / 0.165 / 0.168 / 0.298 / 0.245 / -0.012 / -0.004 / 0.341*
HSI for SF / -0.254 / -0.246 / -0.036 / -0.248 / -0.101 / -0.105 / '0.957*** / -0.283
HSI for YP / -0.102 / -0.101 / -0.196 / 0.593*** / -0.043 / -0.044 / -0.113 / -0.551*** / 0.071
Dry season 2013 / Normal sowing / FT(days) / 0.599*** / 0.598*** / 0.052 / 0.104 / 0.544*** / 0.544*** / 0.216 / 0.040 / -0.222 / -0.069
AHDD days till flowering / 0.576*** / 0.575*** / 0.054 / 0.101 / 0.525** / 0.525** / 0.217 / 0.038 / -0.222 / -0.067 / 0.999***
SF (%) / -0.021 / -0.014 / -0.187 / 0.057 / -0.018 / -0.015 / 0.161 / 0.060 / -0.240 / -0.033 / -0.014 / -0.012
YP (g) / 0.277 / 0.277 / 0.206 / 0.474** / -0.040 / -0.027 / 0.548*** / 0.532** / -0.52** / -0.031 / 0.023 / 0.015 / 0.122
Late sowing / FT(days) / 0.744*** / 0.742*** / -0.080 / 0.035 / 0.832*** / 0.832*** / -0.027 / -0.195 / 0.005 / 0.084 / 0.574*** / 0.554*** / 0.020 / -0.097
AHDD days till flowering / 0.762*** / 0.760*** / -0.073 / 0.034 / 0.840*** / 0.840*** / -0.011 / -0.185 / -0.008 / 0.075 / 0.577*** / 0.557*** / 0.013 / -0.071 / 0.997***
SF (%) / -0.070 / -0.064 / 0.184 / 0.041 / -0.080 / -0.081 / 0.233 / 0.262 / -0.209 / -0.163 / 0.044 / 0.050 / 0.416** / 0.063 / -0.224 / -0.222
YP (g) / 0.181 / 0.187 / 0.086 / 0.220 / 0.063 / 0.071 / 0.275 / 0.363* / -0.282 / -0.078 / -0.080 / -0.091 / 0.211 / 0.404** / -0.070 / -0.050 / 0.565***
HSI for SF / 0.064 / 0.061 / -0.251 / -0.032 / 0.079 / 0.082 / -0.210 / -0.287 / 0.162 / 0.182 / -0.054 / -0.060 / -0.159 / -0.048 / 0.255 / 0.250 / -0.962*** / -0.545***
HSI for YP / -0.024 / -0.031 / -0.029 / 0.241 / -0.166 / -0.162 / 0.127 / -0.017 / -0.129 / 0.221 / 0.027 / 0.030 / -0.159 / 0.428** / -0.027 / -0.027 / -0.561*** / -0.593*** / 0.548***
***Significant at 0.001 level of probability; **Significant at 0.01 level of probability; *Significant at 0.05 level of probability.

FT - Flowering time; AHDD - Accumulated heat degree days; SF - Spikelet fertility; YP - Yield per plant; HSI – Heat susceptibility index