Table 4.
Responses of leaf minerals, N, and S to slow-wilting (SLW) (drought tolerance) phenotype (Trait) in soybean genotypes differing in slow-wilting trait under well-watered (W) and drought stressed (DS) conditions*.
| Genotype | Trait | Ca (%) | K (%) | Mg (%) | N (%) | P (%) | S (%) | B (mg kg−1) | Cu (mg kg−1) | Fe (mg kg−1) | Mn (mg kg−1) | Na (mg kg−1) | Zn (mg kg−1) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | |||||||||||||
| BOGGS | Check | 1.25 | 2.69 | 0.63 | 4.53 | 0.35 | 0.24 | 64.5 | 4.75 | 107 | 112 | 23.0 | 79.7 |
| NC-Roy | Check | 1.29 | 3.10 | 0.63 | 4.42 | 0.45 | 0.26 | 77.8 | 4.32 | 107 | 83.6 | 25.5 | 65.8 |
| NO49646 | SLW | 1.08 | 2.19 | 0.57 | 5.16 | 0.44 | 0.27 | 82.1 | 4.42 | 103 | 107 | 25.4 | 81.0 |
| NTCPR945 | SLW | 1.13 | 2.13 | 0.60 | 5.40 | 0.38 | 0.26 | 91.5 | 4.59 | 94.4 | 88.3 | 20.0 | 90.7 |
| LSD | 0.02 | 0.09 | 0.01 | 0.15 | 0.01 | 0.004 | 4.28 | 0.25 | 2.16 | 2.87 | 1.28 | 2.11 | |
| DS | |||||||||||||
| BOGGS | Check | 1.05 | 2.30 | 0.70 | 4.18 | 0.33 | 0.26 | 116 | 4.63 | 87.9 | 127 | 31.0 | 92.8 |
| NC-Roy | Check | 1.13 | 2.42 | 0.69 | 4.06 | 0.34 | 0.31 | 114 | 5.67 | 84.5 | 102 | 39.6 | 92.0 |
| NO49646 | SLW | 1.42 | 2.68 | 0.71 | 4.84 | 0.65 | 0.29 | 140 | 7.08 | 138 | 121 | 60.7 | 93.7 |
| NTCPR945 | SLW | 1.54 | 2.82 | 0.70 | 4.97 | 0.64 | 0.28 | 161 | 7.86 | 127 | 92.1 | 73.8 | 105 |
| LSD | 0.035 | 0.05 | 0.02 | 0.26 | 0.038 | 0.016 | 5.76 | 0.42 | 3.78 | 5.08 | 3.12 | 3.27 | |
*
The experiment was repeated twice and values are means of six replicates.