Table 5.
Effects of furrow irrigation systems and irrigation levels on maize agronomy and yield.
| Maize agronomy and grain yield |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Plant height (cm) |
||||||||||
| PHtIn |
PHDev |
PHMat |
Tassel |
Silk |
CL |
CD |
AGB |
GY |
LAI |
|
| Treatments | (cm) | (cm) | (cm) | (days) | (days) | (cm) | (cm) | (ton ha−1) | (ton ha−1) | (−) |
| CFI 100%ETc | 50.10a | 141.23a | 280.37a | 67.73a | 81.04a | 26.60a | 20.67a | 18.26a | 7.99a | 0.89a |
| CFI 75%ETc | 47.32d | 136.26d | 260.20d | 65.19c | 78.72d | 22.12d | 17.25d | 14.09c | 5.50d | 0.72c |
| CFI 50%ETc | 47.10e | 135.50d | 259.63d | 64.27d | 78.34f | 19.19f | 15.06f | 12.04d | 5.01f | 0.66d |
| AFI 100%ETc | 48.23b | 139.97b | 271.42b | 67.09 ab | 80.16b | 24.74b | 19.65b | 16.70b | 7.12b | 0.78b |
| AFI 75%ETc | 47.10e | 131.00e | 255.00e | 64.00de | 78.33e | 20.05e | 16.05e | 11.08e | 5.47e | 0.65d |
| AFI 50%ETc | 45.27f | 125.23g | 244.93f | 63.20ef | 78.10g | 18.78g | 14.28g | 8.03g | 4.41h | 0.61e |
| FFI 100%ETc | 47.77c | 137.70c | 268.18c | 66.34b | 80.00c | 23.90c | 18.71c | 15.60c | 5.91c | 0.73c |
| FFI 75%ETc | 44.43g | 128.13f | 236.60g | 62.47f | 77.30h | 15.21h | 12.18h | 8.41f | 4.96g | 0.59f |
| FFI 50%ETc | 43.07h | 124.43g | 197.37h | 60.06g | 76.38i | 13.29i | 10.42i | 7.81h | 4.24i | 0.51g |
| LSD (0.05) | 1.06 | 1.08 | 1.27 | 0.86 | 0.14 | 0.29 | 0.40 | 0.55 | 0.09 | 0.03 |
| CV (%) | 1.31 | 0.47 | 0.29 | 0.77 | 0.1 | 0.81 | 1.44 | 2.55 | 0.94 | 2.53 |
*Means that had the same letters in the column are no significant differences at P < 0.05. PHtIn = plant height at the initial stage, PHDev = plant height at the development stage, PHMat = plant height at maturity sage, CL = cob length, CD = cob diameter, AGB = above-ground biomass, GY = grain yield, LAI = leaf area index, LSD = least significance difference and CV = coefficient of variation.