Table 1.
Wheat genotypes (two cultivars and 16 strains in a crop value and use (VCU) assay of the UFV Wheat Program) submitted to control condition and drought stress.
Table 2.
- Phenotypic variance, broad-sense and genotype mean basis (h2) heritability, accuracy of selection (h), genotype-environment correlation (rge), genotypic (CVg) and residual (CVr) coefficient of variation, and CVg/CVr ratio.
Fig 1.
Results for box-plot of variables measured in 18 wheat genotypes under the two conditions of control and drought.
Grain yield (GY, kg ha-1), hectolitre weight (HLW, kg hL−1), initial and final liquid photosynthesis (AI and AF μmol de CO2 m- 2 s-1), initial and final stomatal conductance (gsI and gsF mol H2O m-2 s-1), proline content (pc, μg g-1), sodium (Na) and potassium (K) (Na and K, mg g-1) total phenolic compounds (TPC, mg GAE g-1) and antioxidant activity by ABTS (mM TEAC g-1) and FRAP (mM Fe+2 g-1) methods.
Fig 2.
Results of BLUP values for 18 wheat genotypes evaluated under two conditions (control and stress) for variables grain yield (GY, kg ha-1) (a), hectolitre weight (HLW, kg hL−1) (b), rate photosynthetic liquid initial AI and final AF (AI and AF μmol de CO2 m- 2 s-1) (c and d), stomachal conductance initial gsI and final gsF (gsi and gsF, mol H2O m-2 s-1) (e and f).
Fig 3.
Results of BLUP values for 18 genotypes of wheat evaluated under two conditions (control and stress), for the variables proline content (pc, μg g-1) (a), sodium (Na, mg g-1) (b), potassium (K, mg g-1) (c), total phenolic compounds (TPC, mg GAE g-1) (d), antioxidant activity by ABTS (mM TEAC g-1) (e) and FRAP (mM Fe+2 g-1) (f).
Fig 4.
Pearson’s linear correlation between the ten studied traits.
The lower diagonal shows the scatter plot where the environments are mapped with different point colors (Control = cyan and Drought = salmon). Grain yield (GY), hectolitre weight (HLW), initial liquid photosynthesis (AI) and final liquid photosynthesis (AF), initial stomatal conductance (gsI) and final stomatal conductance (gsF), proline content (pc), sodium (Na) and potassium (K), total phenolic compounds (TPC) and antioxidant activity by ABTS and FRAP methods.
Fig 5.
Principal component analysis for 18 wheat genotypes evaluated under two conditions (control and drought) 1 and 19-BRS 264, 2 and 20 -TBIO ATON, 3 and 21-VI 130679, 4 and 22-VI 130755, 5 and 23-VI 130758, 6 and 24-VI 131313, 7 and 25-VI 14001, 8 and 26-VI 14026, 9 and 27-VI 14050, 10 and 28-VI 14055, 11 and 29-VI 14118, 12 and 30-VI 14426, 13 and 31-VI 14668, 14 and 32-VI 14774, 15 and 33-VI 14867, 16 and 34-VI 14950, 17 and 35-VI 14980, 18 and 35-VI 9007 for 12 traits.
Grain yield (GY), hectolitre weight (HLW), initial liquid photosynthesis (AI) and final liquid photosynthesis (AF), initial stomatal conductance (gsI) and final stomatal conductance (gsF), proline content (pc), total phenolic compounds (TPC) and antioxidant activity by ABTS and FRAP, sodium (Na) and potassium (K). Results of the contribution of variables for the environments jointed (b).
Table 3.
Original value (Xo), Selected value (Xs), Selection differential (SD) and Selection Differential in percentage (SD%) for the MGIDI in 18 wheat genotypes.
Fig 6 of the manuscript presents the complete trait description.
Fig 6.
(a) Genotype ranking based on the multi-trait index. Selected genotypes are highlighted in red. (b) The strengths and weaknesses of genotypes are presented as the proportion of each factor on the computed multi-trait genotype-ideotype (MGIDI) of all genotypes. The smaller the proportion explained by a factor (closer to the external edge), the closer the traits within that factor to the ideotype. FA1: TPC (total phenolic compounds), ABTS, K (potassium), Na (sodium) and AI (initial liquid photosynthesis); FA2: FRAP, gsI (initial stomatal conductance) and gsF (final); FA3: pc (proline content) and AF (final); and FA4: GY (grain yield) and HLW (hectolitre weight).