Table 1. Mean squares for anatomy, growth, and physiology traits of fifteen sugarcane genotypes under early drought conditions at 110 days after planting (DAP).
| SOV | Mean squares (%S.S.) | |||||||
|---|---|---|---|---|---|---|---|---|
| Water regime (W) | Genotype (G) | W x G | Error | CV (%) | ||||
| df | 1 | 14 | 14 | 60 | ||||
| Tiller Height | 8,410.0 (33.01) | ** | 1,075.0 (59.10) | ** | 55.8 (3.07) | ** | 20.5 (4.83) | 10.09 |
| Tiller number | 567.5 (14.81) | ** | 210.1 (76.76) | ** | 11.2 (4.11) | ** | 2.8 (4.32) | 13.15 |
| LT | 3,350.7 (18.93) | ** | 970.0 (76.75) | ** | 34.1 (2.70) | ** | 4.8 (1.62) | 1.47 |
| CT | 12.6 (20.40) | ** | 2.3 (51.65) | ** | 0.1 (3.04) | ns | 0.3 (24.91) | 11.25 |
| VBC | 1,168.5 (29.27) | ** | 153.6 (53.85) | ** | 8.5 (2.97) | ns | 9.3 (13.91) | 8.96 |
| SCD | 103.9 (19.28) | ** | 19.1 (49.67) | ** | 0.7 (1.85) | ns | 2.6 (29.20) | 14.42 |
| P n | 3,904.2 (65.73) | ** | 99.2 (23.39) | ** | 36.7 (8.66) | ** | 2.2 (2.22) | 5.43 |
| E | 83.17 (75.62) | ** | 1.02 (13.01) | ** | 0.80 (10.15) | ** | 0.02 (1.22) | 8.85 |
| g s | 0.847 (73.13) | ** | 0.012 (14.26) | ** | 0.008 (9.41) | ** | 0.001 (3.20) | 14.89 |
| WUE | 22,707.4 (31.31) | ** | 1,434.0 (28.56) | ** | 1,458.3 (29.05) | ** | 118.1 (10.08) | 37.74 |
| SCMR | 13.9 (0.96) | ns | 43.1 (41.37) | ** | 13.4 (12.89) | ns | 10.9 (44.78) | 7.84 |
| RWC | 1,947.1 (47.17) | ** | 100.7 (34.15) | ** | 10.4 (3.54) | ns | 10.4 (15.13) | 3.74 |
Notes.
*
Significant difference at P < 0.05.
**
Significant difference at P < 0.01.
- ns
- Non-significant
- CV%
- Coefficient of variation indicated that of the diversity of segregation in each trait
- % S.S.
- percentage of sum of squares of segregation in each trait
- LT
- Leaf thickness
- CT
- cuticle thickness
- VBC
- vertical length of bulliform cells
- SCD
- stomatal crypt depth
- Pn
- net photosynthetic rate
- E
- transpiration rate
- gs
- stomatal conductance to water vapor
- WUE
- water use efficiency
- SCMR
- SPAD chlorophyll meter reading
- RWC
- relative water content