Table 1.
Site management summary.
| Sitea | CT | PA | PR | PO | ND |
|---|---|---|---|---|---|
| Latitude | 29 39′ N | 03 29′ N | 18 28′ N | 02 25′ N | 47 00′ N |
| Longitude | 82 06′ W | 76 81′ W | 61 02′ W | 76 62′ W | 96 47′ W |
| Elevationb (m) | 60 | 1000 | 128 | 1800 | 280 |
| Growing season | Mar, 2011 to | Nov, 2011 to | Feb, 2012 to | Mar, 2012 to | May 2012 to |
| Jun. 2011 | Jan, 2012 | May 2012 | Jun, 2012 | Aug, 2012 | |
| Previous culture | Fallow | Beans | Beans | Fallow | Wheat |
| Soil texture | Sand | Clay | Clayey kaolinite | Medium loam | Silt/clay loam |
| Fertilization [kg ha− 1] | N-P-K:136-60-112 | 40 (Urea) | 55(N-P-K:10-10-10) | N-P-K:129-96-80.3 | No fertilizer |
| Irrigation | Cent pivot | Rain fed | Drip | Rain fed | Rain fed |
| Plant density [plans m− 2] | 4.3 | 3 | 3.9 | 4.3 | 3.3 |
| Row spacing [cm] | 90 | 120 | 100 | 90 | 150 |
| # of replicates | 3 | 3 | 3 | 3 | 3 |
| # of genotypes | 168 | 174 | 128 | 178 | 176 |
| TMEAN [°C] c | 24.61 | 23.94 | 24.36 | 18.08 | 20.39 |
| TMAX [°C]c | 31.87 | 28.80 | 25.41 | 29.24 | 11.93 |
| TMIN [°C]c | 17.93 | 19.49 | 14.07 | 20.49 | − 1.63 |
| SRAD [MJ m− 2 d− 1]c | 20.41 | 14.67 | 15.78 | 22.58 | 15.01 |
| DL [h d− 1]c | 13.36 | 11.82 | 12.90 | 12.21 | 14.96 |
a
Abbreviations of CT, PA, PR, PO, and ND represent corresponding sites of Citra, FL (CT); Palmira, Colombia (PA); Popayan, Colombia (PO); Isabela, Puerto Rico (PR); and Prosper, North Dakota (ND).
b
Meters above sea level.
c
Average environmental values taken over the season within each site.