Table 4. Effects of experimental treatments on the total dry matter accumulation (TDMA, t ha−1) and gain yield (t ha−1) in 2015–2016.
Abbreviations for different treatments are defined in Fig. 3). Values followed by different letters within a column are significantly different at the 5% probability level (least significant difference; n = 3).
| Years | Planting densities | Irrigation patterns | Pre-silking TDMA | Post-silking TDMA | Entire growth period TDMA | Grain yield |
|---|---|---|---|---|---|---|
| 2015 | L | NI | 11.3f | 11.5d | 22.8e | 10.9c |
| IV | 11.9ef | 12.4cd | 24.3de | 11.9bc | ||
| IS | 11.4f | 13.7abc | 25.1cd | 12.3ab | ||
| IVS | 11.9ef | 13.3abc | 25.2cd | 12.4ab | ||
| M | NI | 13.6de | 13.1bcd | 26.7bcd | 11.5bc | |
| IV | 14.7bcd | 13.2bcd | 27.9abcd | 12.6ab | ||
| IS | 14.0cd | 14.8ab | 28.8abc | 13.4a | ||
| IVS | 14.7bcd | 14.5ab | 29.2ab | 13.5a | ||
| H | NI | 15.5abc | 14.5ab | 30.0ab | 11.8bc | |
| IV | 16.8a | 14.5ab | 31.4a | 12.7ab | ||
| IS | 16.3ab | 15.3a | 31.6a | 13.4a | ||
| IVS | 16.8a | 15.0ab | 31.8a | 13.6a | ||
| Average | L | 11.6C | 12.7C | 24.4C | 11.7B | |
| M | 14.3B | 13.9B | 28.1B | 12.8A | ||
| H | 16.4A | 14.8A | 31.2A | 12.9A | ||
| NI | 13.5A | 13.0C | 26.5B | 11.4C | ||
| IV | 14.5A | 13.4BC | 27.9AB | 12.4B | ||
| IS | 13.9A | 14.6A | 28.5A | 12.9A | ||
| IVS | 14.5A | 14.2AB | 28.7A | 13.1A | ||
| ANOVA | PD | ** | ** | ** | ** | |
| IM | ns | * | * | ** | ||
| PD × IM | ns | ns | ns | ns | ||
| 2016 | L | NI | 10.0d | 11.0e | 21.0f | 9.2c |
| IV | 11.4d | 12.0cde | 23.4def | 11.1b | ||
| IS | 11.1d | 13.4abc | 24.5cde | 11.3b | ||
| IVS | 11.6d | 13.0abcd | 24.7cde | 11.4b | ||
| M | NI | 11.4d | 10.8e | 22.2ef | 9.8c | |
| IV | 13.4c | 12.3bcd | 25.7bcde | 11.5b | ||
| IS | 13.3c | 13.9ab | 27.1abc | 13.0a | ||
| IVS | 13.7bc | 13.0abcd | 26.7abcd | 13.1a | ||
| H | NI | 13.6bc | 11.4de | 25.0cde | 9.6c | |
| IV | 15.3a | 13.6abc | 29.0ab | 11.2b | ||
| IS | 15.1ab | 14.7a | 29.8a | 12.8a | ||
| IVS | 15.7a | 14.2a | 29.9a | 12.9a | ||
| Average | L | 11.0C | 12.4B | 23.4C | 10.8B | |
| M | 12.9B | 12.5B | 25.4B | 11.9A | ||
| H | 14.9A | 13.5A | 28.4A | 11.6A | ||
| NI | 11.7B | 11.1C | 22.7B | 9.5C | ||
| IV | 13.4A | 12.7B | 26.0A | 11.3B | ||
| IS | 13.2A | 14.0A | 27.1A | 12.4A | ||
| IVS | 13.7A | 13.5AB | 27.1A | 12.5A | ||
| ANOVA | PD | ** | * | ** | ** | |
| IM | ** | ** | ** | ** | ||
| PD × IM | ns | ns | ns | ns |
Notes.
ANOVA, analysis of variance
**
significance at 1% probability level
*
significance at 5% probability level; ns: not significant
- IM
- irrigation mode
- PD
- planting density
Lowercase and uppercase letters in columns indicate significant differences among planting density and irrigation mode treatments, respectively.