Table V. Correlation between grain yield under stressed conditions and grain yield and metabolite levels under the WW condition

Correlation coefficients are shown between grain yield under stress conditions and grain yield and metabolite levels in the WW condition. Each genotype was analyzed as a data point (n = 10 for 1 year). Data from both years were analyzed for DS, whereas only 2010 data were analyzed for HS and DS+HS.

Yield/MetaboliteDSHSDS+HS
Grain yield0.320.85**0.32
Metabolite
 Ala−0.27−0.110.17
 Asn0.170.040.60
 Asp−0.290.330.30
 Benzoate−0.31−0.27−0.45
 β-Ala−0.130.430.19
 Erythritol0.35−0.180.03
 Fru−0.07−0.66−0.53
 Fumarate0.09−0.66−0.70*
 Glycerol-3-P−0.39−0.65−0.64*
GABA−0.16−0.45−0.18
 Galactinol−0.340.32−0.09
 Glu−0.45*0.200.08
 Glycerate0.310.12−0.05
 Glycerol0.110.37−0.04
 Gly−0.440.250.45
 Homo-Ser−0.270.090.12
 Ile−0.25−0.290.11
 Itaconate−0.380.620.33
 Malate0.12−0.58−0.72*
 Maltitol−0.030.150.08
 Maltose0.08−0.060.59
 Myoinositol−0.51*−0.49−0.18
 Nicotinate−0.55*−0.25−0.59
 Octadecanoate−0.51*−0.39−0.55
 Phe−0.33−0.29−0.19
 Phosphate−0.38−0.78*−0.41
 Pro−0.270.530.00
 Putrescine−0.32−0.61−0.37
 Pyro-Glu−0.410.060.35
 Raffinose−0.49*−0.12−0.14
 Ser−0.150.060.30
 Succinate−0.33−0.53−0.74*
 Threonate−0.29−0.280.11
 Thr−0.130.220.38
 Trehalose0.19−0.23−0.19
 Trp0.44−0.33−0.35
 Tyr−0.300.240.27
 Urea−0.36−0.24−0.77**
 Val−0.26−0.170.14
 Xylitol0.02−0.310.01
 Xyl−0.04−0.29−0.40
  • * Correlations at P < 0.05.

  • ** Correlations at P < 0.01.