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Describes the use of a small (3.4- by 1.4-inch), durable data logger to record the temperatures to which tree seedlings are exposed when they are transported from the nursery to the planting site. Seedlings enter and leave nursery storage with easily documented levels of cold hardiness, root growth potential, and general stress tolerance. The temperatures to which seedlings are exposed after leaving the nursery, and the duration of the exposure, can dramatically alter these levels. The Thermochron iButton data logger, manufactured by Dallas Semiconductor Corp., measures temperatures in increments of 1 °C with an accuracy of ±1 °C. The real-time clock calendar is accurate to ±2 minutes per month within a 0 to 40 °C range. The recording interval can range from 1 to 255 minutes in 1-minute intervals, with a starting offset of 0 minutes to 46 days. After 2,048 time-stamped temperature values have been logged, recording stops or values are overwritten (depending on the alternative selected). Nurseries and field units receiving seedlings should find that this device could help determine whether temperatures have affected tree survival and performance.
Some no. include reports compiled from information furnished by State Foresters (and others).
Some no. include reports compiled from information furnished by State Foresters (and others).
Presents information on the target plant concept; addressing plant quality; harvesting; plant storage; handling and shipping; and outplanting.
1998 contains proceedings for: Southern Forest Nursery Association Conference; Northeastern Forest Nursery Association Conference; and the combined Forest Nursery Association of British Columbia/Western Forest and Conservation Nursery Association meeting.