Table 3.
Macro-environments |
||||||||
---|---|---|---|---|---|---|---|---|
High ET | Medium ET | Low ET | ||||||
Topeka, 2012; Tribune, 2013 | Hutchinson, 2013 | Scandia, 2012 | Scandia, 2013; Topeka, 2013 | |||||
Irrigation regime (ET%) | 100 | 50 | 100 | 50 | 100 | 50 | 100 | 50 |
Grain yields, expressed in Mg ha-1 |
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DT | 13.0 | 9.2 | 10.9a† | 10.6a | 11.0 | 9.7 | 12.8 | 10.6 |
Non-DT | 12.6 | 8.6 | 10.0b | 10.3b | 10.8 | 8.7 | 12.9 | 10.4 |
DT | 11.1a‡ | 10.8a | 10.4a | 11.7a | ||||
Non-DT | 10.6b | 10.1b | 9.7b | 11.6a | ||||
Yield Adv. for DT | 0.53 (5.0%) | 0.63 (6.2%) | 0.66 (6.7%) | 0.08 (0.7%) |
†Means within an irrigation regime at Hutchinson, 2013 followed by the same letter are not different (P < 0.05). ‡Means within a column followed by the same letter are not different (P < 0.05).