Table 4.
Population | CDL (35–15°C) | Difference (2008 minus original determination*) |
---|---|---|
Lovell, Wyoming | 14.71 | −0.16 (10 min shorter) |
Lovelock, Nevada | 14.16 | −0.72 (43 min shorter) |
Pueblo, Colorado | 14.48 | −0.41 (25 min shorter) |
Artesia New Mexico | 13.96 | −0.90 (54 min shorter) |
Pueblo, Colorado (field) | 14.23 | −0.38 (23 min shorter)† |
The original determination of CDL was made under a thermoperiod with 18°C amplitude and an average temperature of 25°C, while the CDL measured in 2008 was under a thermoperiod with amplitude 20°C. The CDL was originally measured at 14.88 h (14 h 53 min).
The original determination of field CDL was made from data taken during the summer of 2003 at the Pueblo site and was 14.62 h (14 h 37 min) (Bean et al. 2007a).