Research Article
Performance of Sorghum Varieties under Variable Rainfall in Central Tanzania
Table 9
Occurrences of dry spells during March and April and their relationship to simulated grain yields at Hombolo.
| | Years with the lowest yields | Years with the highest yields | | 1998 | 2001 | 1999 | 2008 | | MAR | APR | MAR | APR | MAR | APR | MAR | APR |
| DEKAD | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 5-day | | √ | | | | | | √ | √ | √ | | √ | | | √ | √ | √ | √ | √ | √ | | | | | 10-day | | √ | | | | | | √ | | | | √ | | | | | | √ | | | | | | | Yield (t/ha) | 0.48–0.57 | 0.54–0.58 | 2.65–2.88 | 2.82–2.84 | Rain (mm) | 38.8 | 98.9 | 66.4 | 63.2 | 211.6 | 117 | 182.1 | 42.3 | Rainy days | 6 | 8 | 6 | 8 | 12 | 5 | 10 | 11 |
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√ indicates occurrence of a dry spell in a decade (10-day interval) within a month.
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