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An automatic device for watering at the right time and in the right amount.
Gerald A. Walters
Azinphosmethyl is unlikely to have a direct role in the dieback troubling Southern pine seed orchards. It could possibly aggravate dieback, but it does ...
Gerhard F. Fedde and Gary L. DeBarr
Azinphosmethyl is unlikely to have a direct role in the dieback troubling Southern pine seed orchards. It could possibly aggravate dieback, but it does ...
Gerhard F. Fedde and Gary L. DeBarr
The increasing use of greenhouses for the accelerated production of forest tree seedlings emphasizes the need to employ labor-saving devices for such routine ...
John B. Scarratt and W. A. McDonald
An automatic device for watering at the right time and in the right amount.
Gerald A. Walters
A seven-day program using irrigation to completely activate BASAMID®, seal the soil surface and maintain toxicant contract within the soil profile has been ...
W. Pennington
In northwestern Ontario, large numbers of container seedlings are overwintered either outdoors or in frozen storage. Seedlings stored outdoors are subject to ...
Lisa J. Buse and Robert E. Whaley
0. Introduction
Jack May
01. Basic Concepts of Nursery Soils Management
Intensive management is needed to grow 700,000 to 800,000 plantable seedlings per acre in a nursery. This requirement is particularly strong when the nursery ...
Dr. Jack T. May
01: Importance to reforestation
High-quality seedlings are those that meet defined levels of performance (survival and growth) on a particular forest site. Improved evaluation of seedling ...
Mary L. Duryea
02. Site Selection
Selecting a site for a permanent forest tree nursery is not only a difficult task, but it is also the most important step in the production of tree seedlings. ...
Dr. Jack T. May
02: Bud dormancy
The classical definition of dormancy is relevant only to the shoot apical meristems of perennial, woody, temperate-zone plants and is weak in that it specifies ...
Denis P. Lavender
03. Nursery Design and Layout
An intensive soil surver and an accurate topographic map of the nursery site provide the basis for a detailed development plan. The USDA Soil Conservation ...
Dr. Jack T. May
03: Techniques for determining seedling water status and their effectiveness in assessing stress
Three basic characteristics describe plant water status: (i) water content relative to that at full saturation, (ii) energy status of water in the cells, and ...
Robert J. Joly
04. Seedbed Preperation
The success of seed sowing, germination and consequent seedling growth depends to a great degree upon the quality of soil preperation. Nursery areas that have ...
Dr. Jack T. May
04: Mineral nutrition as an index of seedling quality
Seedling quality, when defined as outplanting performance, is logically related to its mineral nutrient status. Nutrients such as nitrogen and phosphorus ...
Thomas D. Landis
05. Seed Handling
Acquiring seed to grow nursery seedlings is an extremely important step in the regeneration process. The quality of the seedlings produced depends on both the ...
Earl W. Belcher, Jr.
05: Carbohydrate status as a measure of seedling quality
Seedlings depend on reserve carbohydrates from the time they are lifted until photosynthesis is sufficient to meet the demands of growth and respiration. If ...
John D. Marshall
06. Sowing and Mulching
Each of the Southern pines has different but exacting requirements for seed germination and seedling establishment. To successfully produce millions of pine ...
Dr. Jack T. May
06: Seedlings morphological evaluation-- What you can tell by looking
Grading for height and root collar diameter is practiced by many nurseries as a basis for separating out stock of poor quality. Experiments relating seedling ...
Barbara E. Thompson
07. Seedling Growth and Development
Development and growth of seedlings begins with germination and continues until the seedlings are lifted. Among the multitude of factors or conditinos ...
Dr. Jack T. May
07: OSU vigor test: Principles, procedures, and predictive ability
A vigor test has been developed at Oregon State University to assess the quality of planting stock. The basic premise is that seedlings are exposed to ...
Douglas D. McCreary and Mary L. Duryea
08. Lifting and Field Packing
The lifting season is a period of peak activity in a nursery. Seedling distribution operations may include pretreatment of seedlings or seedbeds, undercutting ...
Dr. Jack T. May
08: Root growth potential: Principles, procedures and predictive ability
Root growth potential (RGP) is the ability of a tree seedling to initiate and elongate roots when placed into an environment favorable for root growth. The ...
Gary A. Ritchie
09. Seedling Quality, Grading, Culling and Counting
Quality in the context of this handbook means the seedling's fitness for planting in the forest. Two of the major attributes of seedling quality are: 1) ...
Dr. Jack T. May
09: Frost hardiness of coniferous seedlings: Principles and applications
The external factors that influence frost hardiness such as temperature, light, moisture and nutrients are examined as well as the internal biochemical changes ...
Christiaan Glerum
1-0 Douglas-fir: A bare-root planting option
1-0 seedlings of Douglas-fir from five physiographic regions in northern California and western Oregon were lifted monthly in winter in Humboldt Nursery, ...
James A. Nelson and James L. Jenkinson
1. Brown Spot Needle Blight
Scott A. Enebak and Tom Starkey
1. Introducci├│n
1. Introduction
David Wenny, R. Kasten Dumroese and Thomas Landis
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