Table 2 Trait mean and range values for 200 recombinant inbred lines and their parental lines tested under drought stress in MSE during 2004 (trial 1)
Traits | IR20 | Nootripathu | Mean | Range | S.D. | H | LSD (α = 0.05) | Significance | ||
|---|---|---|---|---|---|---|---|---|---|---|
Genotype (G) | Treatment (T) | G X T | ||||||||
Leaf rolling-Stress | 7.0 | 5.0 | 6.5 | 5.0–7.0 | 0.60 | 0.63 | 1.8168 | 0.0279 | - | - |
Leaf drying-Stress | 6.0 | 6.0 | 4.9 | 2.0–7.0 | 0.87 | 0.72 | 2.1746 | <.0001 | - | - |
Stress recovery | 4.3 | 5.7 | 5.8 | 1.7–7.0 | 0.91 | 0.70 | 1.9855 | <.0001 | - | - |
Canopy temperature (°C) Stress | 40.6 | 38.4 | 40.1 | 27.8–43.5 | 1.54 | 0.86 | 3.4874 | 0.1081 | - | - |
SPAD value Stress | 20.5 | 38.1 | 30.9 | 20.0–39.5 | 4.00 | 0.62 | 0.4189 | <.0001 | <.0001 | <.0001 |
Irrigated | 32.0 | 38.0 | 33.3 | 21.1–42.5 | 4.10 | 0.74 | ||||
Plantheight (cm) Stress | 33.2 | 45.7 | 42.5 | 28.3–69.0 | 7.50 | 0.48 | 1.0589 | <.0001 | <.0001 | 0.0663 |
Irrigated | 38.6 | 50.8 | 51.4 | 32.3–86.2 | 10.70 | 0.63 | ||||
Tiller number Stress | 3.0 | 5.6 | 4.9 | 2.8–11.3 | 1.70 | 0.36 | 0.2313 | <.0001 | <.0001 | 0.9079 |
Irrigated | 3.8 | 5.8 | 5.5 | 2.5–18.2 | 1.70 | 0.42 | ||||
Biomass (g m−2) Stress | 108.0 | 226.0 | 194.0 | 804.4–1020.8 | 91.10 | 0.63 | 13.299 | <.0001 | <.0001 | <.0001 |
Irrigated | 206.3 | 412.5 | 389.5 | 140.0–1343.0 | 165.70 | 0.68 | ||||