Presents information on the target plant concept; addressing plant quality; harvesting; plant storage; handling and shipping; and outplanting.

This book is a printed edition of the Special Issue Seedling Production and Field Performance of Seedlingsthat was published in Forests

This publication, a compilation of 28 technical articles on various aspects of forest nursery management in western North America, consists of two sections. The first 10 papers comprise the Target Seedling Symposium, and discuss the latest methods of describing and measuring the ideal seedling for reforestation purposes. Morphological characteristics such as height, diameter, stocktype, root system size, and mycorrnizae are covered. Considerable attention is paid to physiological tests such as root growth potential, hydraulic conductivity, cold-hardiness, mineral nutrition, seedling moisture status, and mitotic index. Chlorophyll fluorescence (Fvar), stress-induced volatile emissions (SIVE), and electrolyte conductivity (EC) are also discussed. The remaining papers deal with operational aspects of growing forest tree seedlings in bareroot or container nurseries.

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).