Table 3.
Broad-sense heritability of different traits under different experiments for Aus276/3*MTU1010 and Aus276/3*IR64 mapping populations for seedling-stage and agronomic traitsa
| Population | Traitsb | Broad-sense heritability | ||||||
|---|---|---|---|---|---|---|---|---|
| 2012WUSc | 2013DUS | 2012DUR | 2013DUR | 2012DUN | 2012DLR | 2012DLN | ||
| Aus276/3*MTU1010 | DTF | 0.26 | 0.40 | 0.17 | 0.38 | 0.50 | 0.42 | 0.71 |
| PHT | 0.34 | 0.28 | 0.22 | 0.53 | 0.45 | 0.73 | 0.81 | |
| GY | 0.36 | 0.44 | 0.42 | 0.34 | 0.50 | 0.38 | 0.64 | |
| Biomass | 0.41 | 0.28 | – | 0.51 | – | – | – | |
| HI | 0.32 | 0.33 | – | 0.42 | – | – | – | |
| NR | 0.45 | 0.53 | – | – | – | – | – | |
| EVV | 0.39 | 0.26 | – | 0.22 | – | – | – | |
| RHL | 0.21 | 0.22 | – | – | – | – | – | |
| RHD | 0.18 | 0.23 | – | – | – | – | – | |
| Seedling emergence | – | 0.08 | – | – | – | – | – | |
| Aus276/3*IR64 | DTF | 0.42 | 0.35 | 0.26 | 0.43 | 0.49 | 0.56 | 0.85 |
| PHT | 0.22 | 0.43 | 0.29 | 0.50 | 0.48 | 0.78 | 0.79 | |
| GY | 0.36 | 0.44 | 0.33 | 0.46 | 0.57 | 0.26 | 0.67 | |
| Biomass | 0.65 | 0.40 | – | 0.43 | – | – | – | |
| HI | 0.41 | 0.35 | – | 0.50 | – | – | – | |
| NR | 0.53 | 0.40 | – | – | – | – | – | |
| EVV | 0.44 | 0.30 | – | 0.26 | – | – | – | |
| RHL | 0.15 | 0.10 | – | – | – | – | – | |
| RHD | 0.09 | 0.14 | – | – | – | – | – | |
| LRR | – | 0.08 | – | – | – | – | – | |
| Seedling emergence | – | 0.12 | – | – | – | – | – | |
| K concentration | – | 0.53 | – | – | – | – | – | |
| N concentration | – | 0.74 | – | – | – | – | – | |
| P concentration | – | 0.23 | – | – | – | – | – | |
| K uptake | – | 0.32 | – | – | – | – | – | |
| N uptake | – | 0.33 | – | – | – | – | – | |
| P uptake | – | 0.28 | – | – | – | – | – | |
a Nutrient analysis conducted on plants sampled at 95 DAS.
b GY, grain yield; NR, nodal root number; EVV, early vegetative vigour; RHL, root hair length; RHD, root hair density; LRR, lateral root rating; HI, harvesting index; SW, seed weight; PHT, plant height; DTF, days to flowering; biomass, biomass at harvesting stage.
c Environment codes: U, upland; L, lowland; D, dry season; W, wet season; N, non-stress (well-watered); R, reproductive-stage drought stress; S, seedling-stage drought stress.